Area Code 443 — Baltimore, Pikesville, Columbia, Maryland – TelecomRouting

Reference Data

Area Code Directory

Area Code 443 — Baltimore, Pikesville, Columbia, Maryland

Active

Data last updated: June 25, 2026

State

Maryland

Country

Timezone

America/New_York

Assigned

January 10, 2001

Exchanges (NXX)

785

Carriers

Rate Centers

Overlay

Yes — 410, 667

Top Carriers

Carrier	OCN	NXX Count
PAETEC ITEL, LLC	829J	153
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	121
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	94
NEW CINGULAR WIRELESS PCS, LLC - DC	4036	71
LEVEL 3 COMMUNICATIONS, LLC - MD	6119	69
VERIZON MARYLAND, INC.	9212	55
TELEPORT COMMUNICATIONS AMERICA, LLC - MD	7325	48
MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	46
CORE COMMUNICATIONS, INC.- MD	2593	34
METROPCS, INC.	5562	25

Rate Centers

Exchange Listings (NXX)

NPA-NXX	Carrier	Rate Center	Type	LATA	Status
443-200	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	WOODLAWN	Landline	238	active
443-201	NEW CINGULAR WIRELESS PCS, LLC - DC	WESTMINSTR	Wireless	238	active
443-202	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-203	VERIZON MARYLAND, INC.	WEST RIVER	Landline	238	active
443-204	NEW CINGULAR WIRELESS PCS, LLC - DC	PIKESVILLE	Wireless	238	active
443-205	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	CAMBRIDGE	Wireless	242	active
443-206	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	PERRYVILLE	Wireless	238	active
443-207	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	ELKTON	Wireless	238	active
443-208	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-209	PAETEC ITEL, LLC	HAVREGRACE	VoIP	238	active
443-210	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	SALISBURY	Wireless	242	active
443-212	PAETEC ITEL, LLC	SPARKSGLNC	VoIP	238	active
443-213	VERIZON MARYLAND, INC.	PIKESVILLE	Landline	238	active
443-214	NEW CINGULAR WIRELESS PCS, LLC - DC	ANNAPOLIS	Wireless	238	active
443-215	CORE COMMUNICATIONS, INC.- MD	CHESTERTN	Landline	242	active
443-216	PAETEC ITEL, LLC	DUNDALK	VoIP	238	active
443-217	CORE COMMUNICATIONS, INC.- MD	ANNAPOLIS	Landline	238	active
443-218	LEVEL 3 COMMUNICATIONS, LLC - MD	WORTHINGTN	Landline	238	active
443-219	LEVEL 3 COMMUNICATIONS, LLC - MD	PARKVILLE	Landline	238	active
443-220	VERIZON MARYLAND, INC.	BALTIMORE	Landline	238	active
443-221	LEVEL 3 COMMUNICATIONS, LLC - MD	ANNAPOLIS	Landline	238	active
443-222	ONVOY, LLC - MD	WORTHINGTN	Landline	238	active
443-223	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	ANNAPOLIS	Wireless	238	active
443-224	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	BALTIMORE	Landline	238	active
443-225	METROPCS, INC.	CAMBRIDGE	Wireless	242	active
443-226	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-227	PAETEC ITEL, LLC	PT DEPOSIT	VoIP	238	active
443-228	PAETEC ITEL, LLC	CHASE	VoIP	238	active
443-229	PAETEC ITEL, LLC	SEVERNA PK	VoIP	238	active
443-230	PAETEC ITEL, LLC	ODENTON	VoIP	238	active
443-231	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	ESSEX	VoIP	238	active
443-232	CORE COMMUNICATIONS, INC.- MD	WILLARDS	Landline	242	active
443-233	PAETEC ITEL, LLC	VIENNA	VoIP	242	active
443-234	PAETEC ITEL, LLC	SNOW HILL	VoIP	242	active
443-235	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	SALISBURY	Wireless	242	active
443-236	CORE COMMUNICATIONS, INC.- MD	CARDIFF	Landline	238	active
443-237	CORE COMMUNICATIONS, INC.- MD	NORTHBEACH	Landline	238	active
443-238	PAETEC ITEL, LLC	PARKTON	VoIP	238	active
443-239	NEW CINGULAR WIRELESS PCS, LLC - DC	EASTON	Wireless	242	active
443-240	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-241	ONVOY, LLC - MD	WESTMINSTR	Landline	238	active
443-242	PAETEC ITEL, LLC	SPARROWSPT	VoIP	238	active
443-243	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	FALLSTON	Wireless	238	active
443-244	LEVEL 3 COMMUNICATIONS, LLC - MD	WESTMINSTR	Landline	238	active
443-245	PAETEC ITEL, LLC	ELKTON	VoIP	238	active
443-246	CORE COMMUNICATIONS, INC.- MD	ELKTON	Landline	238	active
443-247	PAETEC ITEL, LLC	UNION BDG	VoIP	238	active
443-248	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-249	VERIZON MARYLAND, INC.	STEVENSVL	Landline	242	active
443-250	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-251	ONVOY, LLC - MD	CATONSVL	Landline	238	active
443-252	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	PERRYVILLE	Wireless	238	active
443-253	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-254	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	ANNAPOLIS	Wireless	238	active
443-255	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-256	PAETEC ITEL, LLC	NORTH EAST	VoIP	238	active
443-257	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-258	NEW CINGULAR WIRELESS PCS, LLC - DC	EASTON	Wireless	242	active
443-259	VERIZON MARYLAND, INC.	COLUMBIA	Landline	238	active
443-260	VERIZON MARYLAND, INC.	SALISBURY	Landline	242	active
443-261	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	SEVERNA PK	Landline	238	active
443-262	VERIZON MARYLAND, INC.	CENTREVL	Landline	242	active
443-263	VERIZON MARYLAND, INC.	BALTIMORE	Landline	238	active
443-264	CORE COMMUNICATIONS, INC.- MD	PIKESVILLE	Landline	238	active
443-265	PAETEC ITEL, LLC	FORK	VoIP	238	active
443-266	BANDWIDTH.COM CLEC, LLC - MD	GLENWOOD	VoIP	238	active
443-267	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	DARLINGTON	Landline	238	active
443-268	CORE COMMUNICATIONS, INC.- MD	BALTIMORE	Landline	238	active
443-269	CORE COMMUNICATIONS, INC.- MD	TOWSON	Landline	238	active
443-270	PAETEC ITEL, LLC	GLENBURNIE	VoIP	238	active
443-271	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-272	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	RANDALLSTN	Landline	238	active
443-273	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	REISTERSTN	Landline	238	active
443-274	VERIZON MARYLAND, INC.	SEVERN	Landline	238	active
443-275	COMCAST IP PHONE, LLC	TOWSON	VoIP	238	active
443-276	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	COLUMBIA	Landline	238	active
443-277	METROPCS, INC.	SYKESVILLE	Wireless	238	active
443-278	VDL, INC. DBA GLOBAL TELECOM BROKERS - MD	BALTIMORE	Landline	238	active
443-279	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	TOWSON	Landline	238	active
443-280	NEW CINGULAR WIRELESS PCS, LLC - DC	SYKESVILLE	Wireless	238	active
443-281	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	COCKEYSVL	Landline	238	active
443-282	METROPCS, INC.	CHESTERTN	Wireless	242	active
443-283	PAETEC ITEL, LLC	COLUMBIA	VoIP	238	active
443-284	CORE COMMUNICATIONS, INC.- MD	WATERLO238	Landline	238	active
443-285	VERIZON MARYLAND, INC.	COLUMBIA	Landline	238	active
443-286	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-287	VERIZON MARYLAND, INC.	BALTIMORE	Landline	238	active
443-288	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ELLICOTTCY	Landline	238	active
443-289	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	WESTMINSTR	Landline	238	active
443-290	LEVEL 3 TELECOM OF MARYLAND, LLC - MD	PARKVILLE	Landline	238	active
443-291	LEVEL 3 COMMUNICATIONS, LLC - MD	HAMPSTEAD	Landline	238	active
443-292	LEVEL 3 COMMUNICATIONS, LLC - MD	CROFTON	Landline	238	active
443-293	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	WESTMINSTR	Wireless	238	active
443-294	BANDWIDTH.COM CLEC, LLC - MD	WEST RIVER	VoIP	238	active
443-295	LEVEL 3 COMMUNICATIONS, LLC - MD	PRINCEFRCK	Landline	238	active
443-296	LEVEL 3 COMMUNICATIONS, LLC - MD	WATERLO238	Landline	238	active
443-297	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	ARBUTUS	Landline	238	active
443-298	NEW CINGULAR WIRELESS PCS, LLC - DC	EASTON	Wireless	242	active
443-299	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	FALLSTON	Wireless	238	active
443-300	LEVEL 3 COMMUNICATIONS, LLC - MD	SYKESVILLE	Landline	238	active
443-301	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-302	LEVEL 3 COMMUNICATIONS, LLC - MD	CROFTON	Landline	238	active
443-303	LEVEL 3 COMMUNICATIONS, LLC - MD	ABERDEEN	Landline	238	active
443-304	BANDWIDTH.COM CLEC, LLC - MD	ARBUTUS	VoIP	238	active
443-305	LEVEL 3 COMMUNICATIONS, LLC - MD	ARGRGBSNIS	Landline	238	active
443-306	METROPCS, INC.	SEVERNA PK	Wireless	238	active
443-307	LEVEL 3 COMMUNICATIONS, LLC - MD	BEL AIR	Landline	238	active
443-308	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	SEVERN	Landline	238	active
443-309	METROPCS, INC.	ELKTON	Wireless	238	active
443-310	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-312	LEVEL 3 COMMUNICATIONS, LLC - MD	BRYNPKLNCM	Landline	238	active
443-313	LEVEL 3 COMMUNICATIONS, LLC - MD	FORK	Landline	238	active
443-314	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-315	NEW CINGULAR WIRELESS PCS, LLC - DC	CATONSVL	Wireless	238	active
443-316	LEVEL 3 COMMUNICATIONS, LLC - MD	WOODLAWN	Landline	238	active
443-317	BANDWIDTH.COM CLEC, LLC - MD	CHASE	VoIP	238	active
443-318	PAETEC ITEL, LLC	COCKEYSVL	VoIP	238	active
443-319	PAETEC ITEL, LLC	COLUMBIA	VoIP	238	active
443-320	LEVEL 3 COMMUNICATIONS, LLC - MD	BALTIMORE	Landline	238	active
443-321	PAETEC ITEL, LLC	ANNAPOLIS	VoIP	238	active
443-322	PAETEC ITEL, LLC	TOWSON	VoIP	238	active
443-323	PAETEC ITEL, LLC	SHARPTOWN	VoIP	242	active
443-324	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-325	PAETEC ITEL, LLC	ELLICOTTCY	VoIP	238	active
443-326	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-327	PAETEC ITEL, LLC	ABERDEEN	VoIP	238	active
443-328	PAETEC ITEL, LLC	SYKESVILLE	VoIP	238	active
443-329	LEVEL 3 COMMUNICATIONS, LLC - MD	WATERLO236	Landline	236	active
443-330	PAETEC ITEL, LLC	COCKEYSVL	VoIP	238	active
443-331	PAETEC ITEL, LLC	TANEYTOWN	VoIP	238	active
443-332	PAETEC ITEL, LLC	CROFTON	VoIP	238	active
443-333	NEW CINGULAR WIRELESS PCS, LLC - DC	ANNAPOLIS	Wireless	238	active
443-334	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	PIKESVILLE	Landline	238	active
443-335	METROPCS, INC.	BRYNPKLNCM	Wireless	238	active
443-336	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	ANNAPOLIS	Wireless	238	active
443-337	CORE COMMUNICATIONS, INC.- MD	SPARROWSPT	Landline	238	active
443-338	PAETEC ITEL, LLC	SPARKSGLNC	VoIP	238	active
443-339	PAETEC ITEL, LLC	SHERWD FOR	VoIP	238	active
443-340	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	WESTMINSTR	Wireless	238	active
443-341	LEVEL 3 COMMUNICATIONS, LLC - MD	CATONSVL	Landline	238	active
443-342	PAETEC ITEL, LLC	SOLOMONS	VoIP	238	active
443-343	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	MILLERSVL	Landline	238	active
443-344	CORE COMMUNICATIONS, INC.- MD	SEVERNA PK	Landline	238	active
443-345	LEVEL 3 COMMUNICATIONS, LLC - MD	ABERDEEN	Landline	238	active
443-346	CORE COMMUNICATIONS, INC.- MD	SEVERNA PK	Landline	238	active
443-347	PAETEC ITEL, LLC	CARDIFF	VoIP	238	active
443-348	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	WOODLAWN	Landline	238	active
443-349	CORE COMMUNICATIONS, INC.- MD	SILVER RUN	Landline	238	active
443-350	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	ELKTON	Wireless	238	active
443-351	PAETEC ITEL, LLC	ODENTON	VoIP	238	active
443-352	LEVEL 3 COMMUNICATIONS, LLC - MD	PIKESVILLE	Landline	238	active
443-353	VERIZON MARYLAND, INC.	COCKEYSVL	Landline	238	active
443-354	LEVEL 3 COMMUNICATIONS, LLC - MD	GLENBURNIE	Landline	238	active
443-355	LEVEL 3 COMMUNICATIONS, LLC - MD	ELLICOTTCY	Landline	238	active
443-356	LEVEL 3 COMMUNICATIONS, LLC - MD	BEL AIR	Landline	238	active
443-357	VERIZON MARYLAND, INC.	PIKESVILLE	Landline	238	active
443-358	YMAX COMMUNICATIONS CORP. - MD	SALISBURY	Landline	242	active
443-359	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	DELMAR	Wireless	242	active
443-360	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	ABERDEEN	Landline	238	active
443-361	CORE COMMUNICATIONS, INC.- MD	SYKESVILLE	Landline	238	active
443-362	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	EASTON	Wireless	242	active
443-363	CORE COMMUNICATIONS, INC.- MD	SEVERN	Landline	238	active
443-364	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	ELLICOTTCY	Landline	238	active
443-365	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	SALISBURY	Wireless	242	active
443-366	METROPCS, INC.	SALISBURY	Wireless	242	active
443-367	VERIZON MARYLAND, INC.	COLUMBIA	Landline	238	active
443-368	CORE COMMUNICATIONS, INC.- MD	WESTMINSTR	Landline	238	active
443-369	CORE COMMUNICATIONS, INC.- MD	BEL AIR	Landline	238	active
443-370	NEW CINGULAR WIRELESS PCS, LLC - DC	ANNAPOLIS	Wireless	238	active
443-371	LEVEL 3 COMMUNICATIONS, LLC - MD	BEL AIR	Landline	238	active
443-372	PAETEC ITEL, LLC	EDGEWOOD	VoIP	238	active
443-373	METROPCS, INC.	OCEAN CITY	Wireless	242	active
443-374	PAETEC ITEL, LLC	ABERDEEN	VoIP	238	active
443-375	METROPCS, INC.	HAMPSTEAD	Wireless	238	active
443-376	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	DUNDALK	Landline	238	active
443-377	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	TOWSON	Wireless	238	active
443-378	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-379	COMCAST IP PHONE, LLC	PIKESVILLE	VoIP	238	active
443-380	LEVEL 3 COMMUNICATIONS, LLC - MD	WOODLAWN	Landline	238	active
443-381	NEW CINGULAR WIRELESS PCS, LLC - DC	REISTERSTN	Wireless	238	active
443-382	CORE COMMUNICATIONS, INC.- MD	CAMBRIDGE	Landline	242	active
443-383	PAETEC ITEL, LLC	SILVER RUN	VoIP	238	active
443-384	PAETEC ITEL, LLC	PARKVILLE	VoIP	238	active
443-385	CORE COMMUNICATIONS, INC.- MD	EASTON	Landline	242	active
443-386	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-387	CORE COMMUNICATIONS, INC.- MD	POCOMOKE	Landline	242	active
443-388	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-389	CORE COMMUNICATIONS, INC.- MD	SALISBURY	Landline	242	active
443-390	BANDWIDTH.COM CLEC, LLC - MD	CHURCHVL	VoIP	238	active
443-391	LEVEL 3 COMMUNICATIONS, LLC - MD	COCKEYSVL	Landline	238	active
443-392	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	BALTIMORE	VoIP	238	active
443-393	LEVEL 3 COMMUNICATIONS, LLC - MD	COLUMBIA	Landline	238	active
443-394	VERIZON MARYLAND, INC.	PIKESVILLE	Landline	238	active
443-395	VERIZON MARYLAND, INC.	ABERDEEN	Landline	238	active
443-396	LEVEL 3 COMMUNICATIONS, LLC - MD	ODENTON	Landline	238	active
443-397	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	SALISBURY	Wireless	242	active
443-398	METROPCS, INC.	SYKESVILLE	Wireless	238	active
443-399	ONVOY, LLC - MD	DUNDALK	Landline	238	active
443-400	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	BRYNPKLNCM	Landline	238	active
443-401	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-402	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	EDGEWOOD	Landline	238	active
443-403	LEVEL 3 COMMUNICATIONS, LLC - MD	ABERDEEN	Landline	238	active
443-404	METROPCS, INC.	SOLOMONS	Wireless	238	active
443-405	COMCAST IP PHONE, LLC	RANDALLSTN	VoIP	238	active
443-406	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	ELKTON	Landline	238	active
443-407	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	DUNDALK	Landline	238	active
443-408	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	SPARROWSPT	Landline	238	active
443-409	PAETEC ITEL, LLC	EDGEWOOD	VoIP	238	active
443-410	CENTURYLINK COMMUNICATIONS, LLC	GLENBURNIE	VoIP	238	active
443-412	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	CHURCHVL	Landline	238	active
443-413	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-414	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-415	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-416	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-417	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	FALLSTON	Landline	238	active
443-418	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-419	PAETEC ITEL, LLC	GLENWOOD	VoIP	238	active
443-420	BANDWIDTH.COM CLEC, LLC - MD	ELLICOTTCY	VoIP	238	active
443-421	NEW CINGULAR WIRELESS PCS, LLC - DC	FORK	Wireless	238	active
443-422	NEW CINGULAR WIRELESS PCS, LLC - DC	GLENBURNIE	Wireless	238	active
443-423	LEVEL 3 COMMUNICATIONS, LLC - MD	BALTIMORE	Landline	238	active
443-424	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	CARDIFF	Landline	238	active
443-425	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	PARKVILLE	VoIP	238	active
443-426	PAETEC ITEL, LLC	RANDALLSTN	VoIP	238	active
443-427	CORE COMMUNICATIONS, INC.- MD	PRINCEANNE	Landline	242	active
443-428	CORE COMMUNICATIONS, INC.- MD	COCKEYSVL	Landline	238	active
443-429	PAETEC ITEL, LLC	WOODLAWN	VoIP	238	active
443-430	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	COLUMBIA	Landline	238	active
443-431	CORE COMMUNICATIONS, INC.- MD	RANDALLSTN	Landline	238	active
443-432	PAETEC ITEL, LLC	PRINCEFRCK	VoIP	238	active
443-433	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ANNAPOLIS	Landline	238	active
443-434	TELNYX LLC	FEDERALSBG	VoIP	242	active
443-435	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-436	VERIZON MARYLAND, INC.	WOODLAWN	Landline	238	active
443-437	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	POCOMOKE	VoIP	242	active
443-438	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-439	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	TRAPPE	Wireless	242	active
443-440	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ANNAPOLIS	Landline	238	active
443-441	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	GLENWOOD	Landline	238	active
443-442	PAETEC ITEL, LLC	PARKVILLE	VoIP	238	active
443-443	COMMIO, LLC	ARBUTUS	VoIP	238	active
443-444	VERIZON MARYLAND, INC.	BALTIMORE	Landline	238	active
443-445	VERIZON MARYLAND, INC.	ELKRIDGE	Landline	238	active
443-446	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	QUEENSTOWN	Landline	242	active
443-447	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-448	COMCAST IP PHONE, LLC	DENTON	VoIP	242	active
443-449	PAETEC ITEL, LLC	BALTIMORE	VoIP	238	active
443-450	LEVEL 3 COMMUNICATIONS, LLC - MD	PIKESVILLE	Landline	238	active
443-451	PAETEC ITEL, LLC	BALTIMORE	VoIP	238	active
443-452	PAETEC ITEL, LLC	BALTIMORE	VoIP	238	active
443-453	ONVOY, LLC - MD	BALTIMORE	Landline	238	active
443-454	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	ANNAPOLIS	Wireless	238	active
443-455	VERIZON MARYLAND, INC.	BALTIMORE	Landline	238	active
443-456	COMCAST IP PHONE, LLC	EDGEWOOD	VoIP	238	active
443-457	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	BRYNPKLNCM	Landline	238	active
443-458	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ANNAPOLIS	Landline	238	active
443-459	PAETEC ITEL, LLC	ELKRIDGE	VoIP	238	active
443-460	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ESSEX	Landline	238	active
443-461	PAETEC ITEL, LLC	PARKVILLE	VoIP	238	active
443-462	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-463	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-464	PAETEC ITEL, LLC	CHURCHVL	VoIP	238	active
443-465	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	TOWSON	Wireless	238	active
443-466	METROPCS, INC.	ELKTON	Wireless	238	active
443-467	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-468	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-469	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-470	PAETEC ITEL, LLC	TOWSON	VoIP	238	active
443-471	PAETEC ITEL, LLC	PIKESVILLE	VoIP	238	active
443-472	LEVEL 3 COMMUNICATIONS, LLC - MD	COLUMBIA	Landline	238	active
443-473	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-474	NEW CINGULAR WIRELESS PCS, LLC - DC	CATONSVL	Wireless	238	active
443-475	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	BALTIMORE	Landline	238	active
443-476	VERIZON MARYLAND, INC.	ANNAPOLIS	Landline	238	active
443-477	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	CAMBRIDGE	Wireless	242	active
443-478	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-479	VERIZON MARYLAND, INC.	WATERLO236	Landline	236	active
443-480	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	CHESTERTN	Wireless	242	active
443-481	PAETEC ITEL, LLC	ANNAPOLIS	VoIP	238	active
443-482	VERIZON MARYLAND, INC.	ANNAPOLIS	Landline	238	active
443-483	LEVEL 3 COMMUNICATIONS, LLC - MD	CARDIFF	Landline	238	active
443-484	LEVEL 3 COMMUNICATIONS, LLC - MD	EDGEWOOD	Landline	238	active
443-485	LEVEL 3 COMMUNICATIONS, LLC - MD	ELKTON	Landline	238	active
443-486	LEVEL 3 COMMUNICATIONS, LLC - MD	PRINCEFRCK	Landline	238	active
443-487	LEVEL 3 COMMUNICATIONS, LLC - MD	WESTMINSTR	Landline	238	active
443-488	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-489	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	CHASE	Landline	238	active
443-490	BANDWIDTH.COM CLEC, LLC - MD	EDGEWOOD	VoIP	238	active
443-491	ONVOY, LLC - MD	PARKTON	Landline	238	active
443-492	LEVEL 3 COMMUNICATIONS, LLC - MD	ELKRIDGE	Landline	238	active
443-493	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	DELMAR	Wireless	242	active
443-494	BANDWIDTH.COM CLEC, LLC - MD	MILLERSVL	VoIP	238	active
443-495	BANDWIDTH.COM CLEC, LLC - MD	PARKVILLE	VoIP	238	active
443-496	METROPCS, INC.	EASTON	Wireless	242	active
443-497	METROPCS, INC.	SALISBURY	Wireless	242	active
443-498	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	CATONSVL	Landline	238	active
443-499	BANDWIDTH.COM CLEC, LLC - MD	JARRETTSVL	VoIP	238	active
443-500	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-501	LEVEL 3 COMMUNICATIONS, LLC - MD	PIKESVILLE	Landline	238	active
443-502	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	HAVREGRACE	Landline	238	active
443-503	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	DUNDALK	Landline	238	active
443-504	PAETEC ITEL, LLC	FALLSTON	VoIP	238	active
443-505	LEVEL 3 COMMUNICATIONS, LLC - MD	ESSEX	Landline	238	active
443-506	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-507	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	HAMPSTEAD	Landline	238	active
443-508	PAETEC ITEL, LLC	HAMPSTEAD	VoIP	238	active
443-509	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-510	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	ANNAPOLIS	Wireless	238	active
443-512	VERIZON MARYLAND, INC.	EDGEWOOD	Landline	238	active
443-513	NEW CINGULAR WIRELESS PCS, LLC - DC	BERLIN	Wireless	242	active
443-514	PAETEC ITEL, LLC	CATONSVL	VoIP	238	active
443-515	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	CAMBRIDGE	Wireless	242	active
443-516	ONVOY, LLC - MD	SYKESVILLE	Landline	238	active
443-517	LEVEL 3 COMMUNICATIONS, LLC - MD	GLENBURNIE	Landline	238	active
443-518	VERIZON MARYLAND, INC.	COLUMBIA	Landline	238	active
443-519	LEVEL 3 COMMUNICATIONS, LLC - MD	TOWSON	Landline	238	active
443-520	NEW CINGULAR WIRELESS PCS, LLC - DC	CATONSVL	Wireless	238	active
443-521	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	CAMBRIDGE	Wireless	242	active
443-522	PAETEC ITEL, LLC	REISTERSTN	VoIP	238	active
443-523	VERIZON MARYLAND, INC.	SALISBURY	Landline	242	active
443-524	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	BALTIMORE	Landline	238	active
443-525	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-526	PAETEC ITEL, LLC	HAVREGRACE	VoIP	238	active
443-527	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-528	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BEL AIR	Wireless	238	active
443-529	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-530	PAETEC ITEL, LLC	DUNDALK	VoIP	238	active
443-531	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-532	METROPCS, INC.	PRINCEFRCK	Wireless	238	active
443-533	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	JARRETTSVL	Landline	238	active
443-534	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	ANNAPOLIS	Wireless	238	active
443-535	VERIZON MARYLAND, INC.	COLUMBIA	Landline	238	active
443-536	METROPCS, INC.	WESTMINSTR	Wireless	238	active
443-537	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	COLUMBIA	Wireless	238	active
443-538	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	COLUMBIA	Wireless	238	active
443-539	PAETEC ITEL, LLC	COLUMBIA	VoIP	238	active
443-540	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-541	PAETEC ITEL, LLC	COCKEYSVL	VoIP	238	active
443-542	COMCAST IP PHONE, LLC	COLUMBIA	VoIP	238	active
443-543	VERIZON MARYLAND, INC.	ARBUTUS	Landline	238	active
443-544	PAETEC ITEL, LLC	PIKESVILLE	VoIP	238	active
443-545	LEVEL 3 COMMUNICATIONS, LLC - MD	COLUMBIA	Landline	238	active
443-546	VERIZON MARYLAND, INC.	COLUMBIA	Landline	238	active
443-547	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	WESTMINSTR	Wireless	238	active
443-548	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	PIKESVILLE	Landline	238	active
443-549	PAETEC ITEL, LLC	DUNDALK	VoIP	238	active
443-550	LEVEL 3 COMMUNICATIONS, LLC - MD	NORTHBEACH	Landline	238	active
443-551	LEVEL 3 COMMUNICATIONS, LLC - MD	WOODLAWN	Landline	238	active
443-552	VERIZON MARYLAND, INC.	BALTIMORE	Landline	238	active
443-553	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	ELKTON	Wireless	238	active
443-554	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	CHASE	Wireless	238	active
443-556	VERIZON MARYLAND, INC.	COCKEYSVL	Landline	238	active
443-557	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	GLENBURNIE	Landline	238	active
443-558	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ABERDEEN	Landline	238	active
443-559	COMCAST IP PHONE, LLC	ESSEX	VoIP	238	active
443-560	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-561	PAETEC ITEL, LLC	ELKRIDGE	VoIP	238	active
443-562	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-563	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-564	LEVEL 3 COMMUNICATIONS, LLC - MD	TOWSON	Landline	238	active
443-565	PAETEC ITEL, LLC	RANDALLSTN	VoIP	238	active
443-566	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	CHESAPKECY	Wireless	242	active
443-567	LEVEL 3 COMMUNICATIONS, LLC - MD	BEL AIR	Landline	238	active
443-568	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ARBUTUS	Landline	238	active
443-569	LEVEL 3 COMMUNICATIONS, LLC - MD	ANNAPOLIS	Landline	238	active
443-570	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-571	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-572	VERIZON MARYLAND, INC.	GLENBURNIE	Landline	238	active
443-573	PAETEC ITEL, LLC	BALTIMORE	VoIP	238	active
443-574	PAETEC ITEL, LLC	ELLICOTTCY	VoIP	238	active
443-575	PAETEC ITEL, LLC	ARBUTUS	VoIP	238	active
443-576	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	RANDALLSTN	Landline	238	active
443-577	PAETEC ITEL, LLC	GLENBURNIE	VoIP	238	active
443-578	XO MARYLAND, LLC	COCKEYSVL	Landline	238	active
443-579	PAETEC ITEL, LLC	ESSEX	VoIP	238	active
443-580	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-581	ONVOY, LLC - MD	CHASE	Landline	238	active
443-582	PAETEC ITEL, LLC	CHURCHVL	VoIP	238	active
443-583	PAETEC ITEL, LLC	COLUMBIA	VoIP	238	active
443-584	PAETEC ITEL, LLC	CROFTON	VoIP	238	active
443-585	PAETEC ITEL, LLC	DARLINGTON	VoIP	238	active
443-586	CORE COMMUNICATIONS, INC.- MD	DUNDALK	Landline	238	active
443-587	PAETEC ITEL, LLC	EDGEWOOD	VoIP	238	active
443-588	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	PARKVILLE	Landline	238	active
443-589	PAETEC ITEL, LLC	COCKEYSVL	VoIP	238	active
443-590	LEVEL 3 COMMUNICATIONS, LLC - MD	REISTERSTN	Landline	238	active
443-591	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	GLENBURNIE	Wireless	238	active
443-592	CORE COMMUNICATIONS, INC.- MD	ELKRIDGE	Landline	238	active
443-593	PAETEC ITEL, LLC	ELKTON	VoIP	238	active
443-594	LEVEL 3 COMMUNICATIONS, LLC - MD	SPARROWSPT	Landline	238	active
443-595	BANDWIDTH.COM CLEC, LLC - MD	SPARKSGLNC	VoIP	238	active
443-596	CORE COMMUNICATIONS, INC.- MD	ESSEX	Landline	238	active
443-597	METROPCS, INC.	SEVERNA PK	Wireless	238	active
443-598	BANDWIDTH.COM CLEC, LLC - MD	SHERWD FOR	VoIP	238	active
443-599	METROPCS, INC.	SEVERN	Wireless	238	active
443-600	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	ESSEX	Wireless	238	active
443-601	PAETEC ITEL, LLC	FALLSTON	VoIP	238	active
443-602	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-603	PAETEC ITEL, LLC	ANNAPOLIS	VoIP	238	active
443-604	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-605	PAETEC ITEL, LLC	WESTMINSTR	VoIP	238	active
443-606	PAETEC ITEL, LLC	FORK	VoIP	238	active
443-607	PAETEC ITEL, LLC	WEST RIVER	VoIP	238	active
443-608	NEW CINGULAR WIRELESS PCS, LLC - DC	TOWSON	Wireless	238	active
443-609	PAETEC ITEL, LLC	SYKESVILLE	VoIP	238	active
443-610	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-612	VERIZON MARYLAND, INC.	CATONSVL	Landline	238	active
443-613	NEW CINGULAR WIRELESS PCS, LLC - DC	TOWSON	Wireless	238	active
443-614	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	SALISBURY	Wireless	242	active
443-615	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-616	PAETEC ITEL, LLC	BEL AIR	VoIP	238	active
443-617	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	FALLSTON	Wireless	238	active
443-618	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	GLENBURNIE	Wireless	238	active
443-619	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BEL AIR	Wireless	238	active
443-620	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	WATERLO238	Landline	238	active
443-621	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-622	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-623	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	GLENBURNIE	Wireless	238	active
443-624	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	PRINCEFRCK	Wireless	238	active
443-625	LEVEL 3 COMMUNICATIONS, LLC - MD	FORK	Landline	238	active
443-626	PAETEC ITEL, LLC	CHASE	VoIP	238	active
443-627	LEVEL 3 COMMUNICATIONS, LLC - MD	BALTIMORE	Landline	238	active
443-628	CORE COMMUNICATIONS, INC.- MD	GLENBURNIE	Landline	238	active
443-629	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-630	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-631	NEW CINGULAR WIRELESS PCS, LLC - DC	CATONSVL	Wireless	238	active
443-632	PAETEC ITEL, LLC	TOWSON	VoIP	238	active
443-633	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-634	VERIZON MARYLAND, INC.	WATERLO236	Landline	236	active
443-635	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-636	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	CATONSVL	Wireless	238	active
443-637	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ARGRGBSNIS	Landline	238	active
443-638	GLOBAL NAPS SOUTH, INC. - MD	ELLICOTTCY	Landline	238	active
443-639	PAETEC ITEL, LLC	HAMPSTEAD	VoIP	238	active
443-640	PAETEC ITEL, LLC	BEL AIR	VoIP	238	active
443-641	LEVEL 3 COMMUNICATIONS, LLC - MD	PIKESVILLE	Landline	238	active
443-642	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-643	VERIZON MARYLAND, INC.	BEL AIR	Landline	238	active
443-644	PAETEC ITEL, LLC	JARRETTSVL	VoIP	238	active
443-645	PAETEC ITEL, LLC	MILLERSVL	VoIP	238	active
443-646	PAETEC ITEL, LLC	NORTHBEACH	VoIP	238	active
443-647	PAETEC ITEL, LLC	NEWWINDSOR	VoIP	238	active
443-648	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	ESSEX	Landline	238	active
443-649	PAETEC ITEL, LLC	SPARROWSPT	VoIP	238	active
443-650	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	REISTERSTN	Landline	238	active
443-651	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-652	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	TOWSON	Wireless	238	active
443-653	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	PARKVILLE	Wireless	238	active
443-654	VERIZON MARYLAND, INC.	WATERLO236	Landline	236	active
443-655	NEW CINGULAR WIRELESS PCS, LLC - DC	BEL AIR	Wireless	238	active
443-656	PAETEC ITEL, LLC	COLUMBIA	VoIP	238	active
443-657	LEVEL 3 TELECOM OF MARYLAND, LLC - MD	RANDALLSTN	Landline	238	active
443-658	ONVOY, LLC - MD	WOODLAWN	Landline	238	active
443-659	ONVOY, LLC - MD	WEST RIVER	Landline	238	active
443-660	COMCAST IP PHONE, LLC	PIKESVILLE	VoIP	238	active
443-661	PAETEC ITEL, LLC	WATERLO238	VoIP	238	active
443-662	PAETEC ITEL, LLC	SPARKSGLNC	VoIP	238	active
443-663	VERIZON MARYLAND, INC.	WOODLAWN	Landline	238	active
443-664	PAETEC ITEL, LLC	OCEAN CITY	VoIP	242	active
443-665	CORE COMMUNICATIONS, INC.- MD	NANTICOKE	Landline	242	active
443-666	LEVEL 3 COMMUNICATIONS, LLC - MD	CHESTERTN	Landline	242	active
443-667	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	DELMAR	Wireless	242	active
443-668	NEW CINGULAR WIRELESS PCS, LLC - DC	CATONSVL	Wireless	238	active
443-669	PAETEC ITEL, LLC	DELMAR	VoIP	242	active
443-670	PAETEC ITEL, LLC	CATONSVL	VoIP	238	active
443-671	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	NEWWINDSOR	Landline	238	active
443-672	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	PARKTON	Landline	238	active
443-673	PAETEC ITEL, LLC	BRYNPKLNCM	VoIP	238	active
443-674	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	NORTH EAST	Landline	238	active
443-675	PAETEC ITEL, LLC	RANDALLSTN	VoIP	238	active
443-676	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-677	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-678	VERIZON MARYLAND, INC.	PARKVILLE	Landline	238	active
443-679	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	SEVERN	Landline	238	active
443-680	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-681	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-682	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-683	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-684	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	PRINCEFRCK	Wireless	238	active
443-685	PAETEC ITEL, LLC	SEVERN	VoIP	238	active
443-686	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	FALLSTON	Wireless	238	active
443-687	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-688	PAETEC ITEL, LLC	SEVERN	VoIP	238	active
443-689	PAETEC ITEL, LLC	COCKEYSVL	VoIP	238	active
443-690	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-691	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-692	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	BALTIMORE	Landline	238	active
443-693	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	PERRYVILLE	Landline	238	active
443-694	METROPCS, INC.	SEVERNA PK	Wireless	238	active
443-695	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-696	PAETEC ITEL, LLC	DUNDALK	VoIP	238	active
443-697	GLOBAL NAPS SOUTH, INC. - MD	CATONSVL	Landline	238	active
443-698	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	ODENTON	Landline	238	active
443-699	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	ANNAPOLIS	Wireless	238	active
443-701	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ARBUTUS	Landline	238	active
443-702	PAETEC ITEL, LLC	ARGRGBSNIS	VoIP	238	active
443-703	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	BALTIMORE	Landline	238	active
443-704	PAETEC ITEL, LLC	ODENTON	VoIP	238	active
443-705	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	COCKEYSVL	Wireless	238	active
443-706	PAETEC ITEL, LLC	CRISFIELD	VoIP	242	active
443-707	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	ABERDEEN	Wireless	238	active
443-708	LEVEL 3 TELECOM OF MARYLAND, LLC - MD	BALTIMORE	Landline	238	active
443-709	PAETEC ITEL, LLC	ARBUTUS	VoIP	238	active
443-710	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	CATONSVL	Landline	238	active
443-712	PAETEC ITEL, LLC	REISTERSTN	VoIP	238	active
443-713	PEERLESS NETWORK OF MARYLAND, LLC	GLENBURNIE	Landline	238	active
443-714	NEW CINGULAR WIRELESS PCS, LLC - DC	ANNAPOLIS	Wireless	238	active
443-715	PAETEC ITEL, LLC	NORTH EAST	VoIP	238	active
443-716	PAETEC ITEL, LLC	ANNAPOLIS	VoIP	238	active
443-717	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-718	PAETEC ITEL, LLC	COLUMBIA	VoIP	238	active
443-719	PAETEC ITEL, LLC	JARRETTSVL	VoIP	238	active
443-720	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ABERDEEN	Landline	238	active
443-721	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-722	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-723	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-724	PAETEC ITEL, LLC	EASTON	VoIP	242	active
443-725	PAETEC ITEL, LLC	PARKVILLE	VoIP	238	active
443-726	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-727	PAETEC ITEL, LLC	BISHOPVL	VoIP	242	active
443-728	PAETEC ITEL, LLC	BERLIN	VoIP	242	active
443-729	PAETEC ITEL, LLC	WOODLAWN	VoIP	238	active
443-730	PAETEC ITEL, LLC	ESSEX	VoIP	238	active
443-731	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	PT DEPOSIT	Landline	238	active
443-732	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	SILVER RUN	Landline	238	active
443-733	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	WATERLO238	Landline	238	active
443-734	VERIZON MARYLAND, INC.	SEVERN	Landline	238	active
443-735	NEW CINGULAR WIRELESS PCS, LLC - DC	SALISBURY	Wireless	242	active
443-736	NEW CINGULAR WIRELESS PCS, LLC - DC	SALISBURY	Wireless	242	active
443-737	PAETEC ITEL, LLC	WATERLO238	VoIP	238	active
443-738	PAETEC ITEL, LLC	PIKESVILLE	VoIP	238	active
443-739	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-740	LEVEL 3 COMMUNICATIONS, LLC - MD	BALTIMORE	Landline	238	active
443-741	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	COLUMBIA	Landline	238	active
443-742	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-743	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-744	METROPCS, INC.	REISTERSTN	Wireless	238	active
443-745	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	COLUMBIA	Wireless	238	active
443-746	LEVEL 3 COMMUNICATIONS, LLC - MD	EASTON	Landline	242	active
443-747	CORE COMMUNICATIONS, INC.- MD	PT DEPOSIT	Landline	238	active
443-748	PAETEC ITEL, LLC	MILLERSVL	VoIP	238	active
443-749	PAETEC ITEL, LLC	GLENBURNIE	VoIP	238	active
443-750	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-751	PAETEC ITEL, LLC	WOODLAWN	VoIP	238	active
443-752	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BEL AIR	Wireless	238	active
443-753	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	WATERLO236	Landline	236	active
443-754	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	SALISBURY	Wireless	242	active
443-755	VERIZON MARYLAND, INC.	WATERLO238	Landline	238	active
443-756	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-757	PAETEC ITEL, LLC	ELKRIDGE	VoIP	238	active
443-758	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	ANNAPOLIS	Wireless	238	active
443-759	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-760	AT&T - LOCAL	ABERDEEN	Landline	238	active
443-761	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	TOWSON	Wireless	238	active
443-762	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-763	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	GLENBURNIE	Wireless	238	active
443-764	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	GLENBURNIE	Wireless	238	active
443-765	NEW CINGULAR WIRELESS PCS, LLC - DC	CATONSVL	Wireless	238	active
443-766	PAETEC ITEL, LLC	COLUMBIA	VoIP	238	active
443-767	PAETEC ITEL, LLC	WORTHINGTN	VoIP	238	active
443-768	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-769	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-770	VERIZON MARYLAND, INC.	ARGRGBSNIS	Landline	238	active
443-771	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	PRINCEFRCK	Wireless	238	active
443-772	PAETEC ITEL, LLC	ESSEX	VoIP	238	active
443-773	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	BRYNPKLNCM	Landline	238	active
443-774	NEW CINGULAR WIRELESS PCS, LLC - DC	COLUMBIA	Wireless	238	active
443-775	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	ANNAPOLIS	Wireless	238	active
443-776	BANDWIDTH.COM CLEC, LLC - MD	ELKRIDGE	VoIP	238	active
443-777	VERIZON MARYLAND, INC.	ESSEX	Landline	238	active
443-778	VERIZON MARYLAND, INC.	WATERLO236	Landline	236	active
443-779	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ABERDEEN	Landline	238	active
443-780	PAETEC ITEL, LLC	WOODLAWN	VoIP	238	active
443-781	ONVOY, LLC - MD	ARGRGBSNIS	Landline	238	active
443-782	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ANNAPOLIS	Landline	238	active
443-783	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	SALISBURY	Wireless	242	active
443-784	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	ARGRGBSNIS	Landline	238	active
443-785	ONVOY, LLC - MD	ARBUTUS	Landline	238	active
443-786	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	EASTON	Wireless	242	active
443-787	PAETEC ITEL, LLC	BEL AIR	VoIP	238	active
443-788	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	ABERDEEN	Wireless	238	active
443-789	NEW CINGULAR WIRELESS PCS, LLC - DC	WESTMINSTR	Wireless	238	active
443-790	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	GLENBURNIE	Wireless	238	active
443-791	NEW CINGULAR WIRELESS PCS, LLC - DC	TOWSON	Wireless	238	active
443-792	VERIZON MARYLAND, INC.	BRYNPKLNCM	Landline	238	active
443-793	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	PARKVILLE	Landline	238	active
443-794	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-795	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	SEVERN	Landline	238	active
443-796	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	PIKESVILLE	Landline	238	active
443-797	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	TOWSON	Landline	238	active
443-798	LEVEL 3 TELECOM OF MARYLAND, LLC - MD	TOWSON	Landline	238	active
443-799	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-800	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-801	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-802	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-803	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-804	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-805	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	GLENBURNIE	Wireless	238	active
443-806	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-807	METROPCS, INC.	FALLSTON	Wireless	238	active
443-808	BANDWIDTH.COM CLEC, LLC - MD	ANNAPOLIS	VoIP	238	active
443-809	LEVEL 3 COMMUNICATIONS, LLC - MD	TOWSON	Landline	238	active
443-810	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-812	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	COLUMBIA	Wireless	238	active
443-813	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-814	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-815	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ESSEX	Landline	238	active
443-816	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	SEVERNA PK	Landline	238	active
443-817	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ARGRGBSNIS	Landline	238	active
443-818	LEVEL 3 COMMUNICATIONS, LLC - MD	ARGRGBSNIS	Landline	238	active
443-819	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BEL AIR	Wireless	238	active
443-820	PAETEC ITEL, LLC	ELKRIDGE	VoIP	238	active
443-821	METROPCS, INC.	WESTMINSTR	Wireless	238	active
443-822	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	ANNAPOLIS	Wireless	238	active
443-823	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	TOWSON	Wireless	238	active
443-824	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	TOWSON	Wireless	238	active
443-825	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-826	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-827	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-828	PAETEC ITEL, LLC	ELLICOTTCY	VoIP	238	active
443-829	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-830	PAETEC ITEL, LLC	CATONSVL	VoIP	238	active
443-831	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-832	LEVEL 3 COMMUNICATIONS, LLC - MD	COLUMBIA	Landline	238	active
443-833	PAETEC ITEL, LLC	ARBUTUS	VoIP	238	active
443-834	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	TOWSON	Wireless	238	active
443-835	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-836	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	BALTIMORE	Landline	238	active
443-837	PAETEC ITEL, LLC	ANNAPOLIS	VoIP	238	active
443-838	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-839	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-840	NEW CINGULAR WIRELESS PCS, LLC - DC	CATONSVL	Wireless	238	active
443-841	VERIZON MARYLAND, INC.	TOWSON	Landline	238	active
443-842	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-843	VERIZON MARYLAND, INC.	HAVREGRACE	Landline	238	active
443-844	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-845	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-846	NEW CINGULAR WIRELESS PCS, LLC - DC	TOWSON	Wireless	238	active
443-847	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	TOWSON	Wireless	238	active
443-848	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	GLENBURNIE	Wireless	238	active
443-849	VERIZON MARYLAND, INC.	TOWSON	Landline	238	active
443-850	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-851	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	CATONSVL	Wireless	238	active
443-852	NEW CINGULAR WIRELESS PCS, LLC - DC	ANNAPOLIS	Wireless	238	active
443-853	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-854	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-855	PAETEC ITEL, LLC	ABERDEEN	VoIP	238	active
443-856	CORE COMMUNICATIONS, INC.- MD	OCEAN CITY	Landline	242	active
443-857	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-858	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-859	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	SALISBURY	Wireless	242	active
443-860	NEW CINGULAR WIRELESS PCS, LLC - DC	CATONSVL	Wireless	238	active
443-861	VERIZON MARYLAND, INC.	ABERDEEN	Landline	238	active
443-862	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	TOWSON	Wireless	238	active
443-863	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-864	METROPCS, INC.	COLUMBIA	Wireless	238	active
443-865	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-866	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BEL AIR	Wireless	238	active
443-867	PAETEC ITEL, LLC	GLENBURNIE	VoIP	238	active
443-868	VERIZON MARYLAND, INC.	ESSEX	Landline	238	active
443-869	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-870	LEVEL 3 TELECOM OF MARYLAND, LLC - MD	PIKESVILLE	Landline	238	active
443-871	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	ANNAPOLIS	Wireless	238	active
443-872	PAETEC ITEL, LLC	BALTIMORE	VoIP	238	active
443-873	ONVOY, LLC - MD	BALTIMORE	Landline	238	active
443-874	PAETEC ITEL, LLC	BALTIMORE	VoIP	238	active
443-875	NEW CINGULAR WIRELESS PCS, LLC - DC	ANNAPOLIS	Wireless	238	active
443-876	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BEL AIR	Wireless	238	active
443-877	LEVEL 3 COMMUNICATIONS, LLC - MD	NORTH EAST	Landline	238	active
443-878	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	COLUMBIA	Wireless	238	active
443-879	VERIZON MARYLAND, INC.	DUNDALK	Landline	238	active
443-880	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	SALISBURY	VoIP	242	active
443-881	METROPCS, INC.	REISTERSTN	Wireless	238	active
443-882	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-883	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	GLENBURNIE	VoIP	238	active
443-884	PAETEC ITEL, LLC	BALTIMORE	VoIP	238	active
443-885	VERIZON MARYLAND, INC.	BALTIMORE	Landline	238	active
443-886	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	COCKEYSVL	Landline	238	active
443-887	PAETEC ITEL, LLC	CATONSVL	VoIP	238	active
443-888	PAETEC ITEL, LLC	PRINCEANNE	VoIP	242	active
443-889	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	GLENBURNIE	Wireless	238	active
443-890	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-891	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	GLENBURNIE	Landline	238	active
443-892	BANDWIDTH.COM CLEC, LLC - MD	NEWWINDSOR	VoIP	238	active
443-893	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	WOODLAWN	Landline	238	active
443-894	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-895	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	TOWSON	Wireless	238	active
443-896	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	COLUMBIA	VoIP	238	active
443-897	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-898	LEVEL 3 COMMUNICATIONS, LLC - MD	PIKESVILLE	Landline	238	active
443-899	LEVEL 3 COMMUNICATIONS, LLC - MD	WATERLO238	Landline	238	active
443-900	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	TOWSON	Wireless	238	active
443-901	PAETEC ITEL, LLC	TOWSON	VoIP	238	active
443-902	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-903	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BEL AIR	Wireless	238	active
443-904	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-905	NEW CINGULAR WIRELESS PCS, LLC - DC	ANNAPOLIS	Wireless	238	active
443-906	PEERLESS NETWORK OF MARYLAND, LLC	SEVERNA PK	Landline	238	active
443-907	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	ELKTON	Wireless	238	active
443-908	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-909	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-910	NEW CINGULAR WIRELESS PCS, LLC - DC	BEL AIR	Wireless	238	active
443-912	CORE COMMUNICATIONS, INC.- MD	TOWSON	Landline	238	active
443-913	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-914	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	WORTHINGTN	Landline	238	active
443-915	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-916	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-917	ONVOY, LLC - MD	COLUMBIA	Landline	238	active
443-918	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	TANEYTOWN	Landline	238	active
443-919	PAETEC ITEL, LLC	BALTIMORE	VoIP	238	active
443-920	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	SYKESVILLE	Landline	238	active
443-921	PAETEC ITEL, LLC	TOWSON	VoIP	238	active
443-922	PAETEC ITEL, LLC	EDGEWOOD	VoIP	238	active
443-923	PAETEC ITEL, LLC	BALTIMORE	VoIP	238	active
443-924	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	ANNAPOLIS	Wireless	238	active
443-925	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-926	LEVEL 3 COMMUNICATIONS, LLC - MD	ANNAPOLIS	Landline	238	active
443-927	LEVEL 3 COMMUNICATIONS, LLC - MD	BALTIMORE	Landline	238	active
443-928	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-929	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	PIKESVILLE	Wireless	238	active
443-930	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-931	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	BALTIMORE	Landline	238	active
443-932	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-933	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	COCKEYSVL	Landline	238	active
443-934	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-935	NEW CINGULAR WIRELESS PCS, LLC - DC	TOWSON	Wireless	238	active
443-936	NEW CINGULAR WIRELESS PCS, LLC - DC	ELKRIDGE	Wireless	238	active
443-937	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	UNION BDG	Landline	238	active
443-938	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-939	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-940	PAETEC ITEL, LLC	PIKESVILLE	VoIP	238	active
443-941	NEW CINGULAR WIRELESS PCS, LLC - DC	ELKTON	Wireless	238	active
443-942	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	SEVERNA PK	Landline	238	active
443-943	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	SPARROWSPT	Landline	238	active
443-944	COMCAST IP PHONE, LLC	SALISBURY	VoIP	242	active
443-945	NEW CINGULAR WIRELESS PCS, LLC - DC	ELKTON	Wireless	238	active
443-946	CORE COMMUNICATIONS, INC.- MD	PARKVILLE	Landline	238	active
443-947	PAETEC ITEL, LLC	PERRYVILLE	VoIP	238	active
443-948	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-949	COMCAST IP PHONE, LLC	ANNAPOLIS	VoIP	238	active
443-951	LEVEL 3 COMMUNICATIONS, LLC - MD	ANNAPOLIS	Landline	238	active
443-952	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	WESTMINSTR	Wireless	238	active
443-953	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	SALISBURY	Wireless	242	active
443-954	PAETEC ITEL, LLC	BALTIMORE	VoIP	238	active
443-955	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-956	NEW CINGULAR WIRELESS PCS, LLC - DC	BALTIMORE	Wireless	238	active
443-957	AT&T - LOCAL	BALTIMORE	Landline	238	active
443-960	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	GLENBURNIE	Wireless	238	active
443-961	INTRADO COMMUNICATIONS, LLC	BALTIMORE	Landline	238	active
443-962	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	GLENBURNIE	Wireless	238	active
443-963	BANDWIDTH.COM CLEC, LLC - MD	BALTIMORE	VoIP	238	active
443-964	LEVEL 3 COMMUNICATIONS, LLC - MD	NORTHBEACH	Landline	238	active
443-965	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-966	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	FALLSTON	Wireless	238	active
443-967	VERIZON MARYLAND, INC.	NORTH EAST	Landline	238	active
443-968	NEW CINGULAR WIRELESS PCS, LLC - DC	PRINCEFRCK	Wireless	238	active
443-969	PAETEC ITEL, LLC	ESSEX	VoIP	238	active
443-970	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-971	BANDWIDTH.COM CLEC, LLC - MD	TANEYTOWN	VoIP	238	active
443-972	PAETEC ITEL, LLC	CAMBRIDGE	VoIP	242	active
443-973	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	ELLICOTTCY	Landline	238	active
443-974	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	WESTMINSTR	Landline	238	active
443-975	NEW CINGULAR WIRELESS PCS, LLC - DC	PRINCEFRCK	Wireless	238	active
443-977	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-978	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	SALISBURY	Wireless	242	active
443-979	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	COLUMBIA	Wireless	238	active
443-980	NEW CINGULAR WIRELESS PCS, LLC - DC	CATONSVL	Wireless	238	active
443-981	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	FALLSTON	Wireless	238	active
443-982	YMAX COMMUNICATIONS CORP. - MD	BALTIMORE	Landline	238	active
443-983	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	BALTIMORE	Wireless	238	active
443-984	VERIZON MARYLAND, INC.	BALTIMORE	Landline	238	active
443-985	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	RANDALLSTN	Wireless	238	active
443-986	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BALTIMORE	Wireless	238	active
443-987	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	BEL AIR	Wireless	238	active
443-988	LEVEL 3 COMMUNICATIONS, LLC - MD	CENTREVL	Landline	242	active
443-989	PAETEC ITEL, LLC	GLENBURNIE	VoIP	238	active
443-990	BANDWIDTH.COM CLEC, LLC - MD	BALTIMORE	VoIP	238	active
443-991	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	TOWSON	Wireless	238	active
443-992	LEVEL 3 COMMUNICATIONS, LLC - MD	BALTIMORE	Landline	238	active
443-993	METROPCS, INC.	ELKTON	Wireless	238	active
443-994	NEW CINGULAR WIRELESS PCS, LLC - DC	ANNAPOLIS	Wireless	238	active
443-995	NEW CINGULAR WIRELESS PCS, LLC - DC	ANNAPOLIS	Wireless	238	active
443-996	NEW CINGULAR WIRELESS PCS, LLC - DC	CATONSVL	Wireless	238	active
443-997	VERIZON MARYLAND, INC.	BALTIMORE	Landline	238	active
443-998	VERIZON MARYLAND, INC.	PARKVILLE	Landline	238	active

Area code 443 shares its geographic region with the following overlay area codes:

410 667

Area Code 443 — Baltimore, Pikesville, Columbia, Maryland

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