Reference Data
Area Code Directory
Area Code 227 — Vienna, Chevy Chase, Washington, Maryland

Area Code 227 — Vienna, Chevy Chase, Washington, Maryland

Active

Data last updated: March 10, 2026

State
Maryland
Country
US
Timezone
America/New_York
Assigned
July 27, 2023
Exchanges (NXX)
786
Carriers
14
Rate Centers
37
Overlay
Yes — 240, 301

Top Carriers

Carrier OCN NXX Count
ONVOY, LLC - MD 876D 31
NEW CINGULAR WIRELESS PCS, LLC - DC 4036 29
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 24
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 8
COMMIO, LLC 939H 7
WIDE VOICE, LLC - MD 530H 5
ONVOY SPECTRUM, LLC 624H 5
BANDWIDTH.COM CLEC, LLC - MD 071F 4
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 7228 2
AT&T - LOCAL 7421 2

Rate Centers

WSHNGTNZN2 MYERSVILLE WSNGTNZN10 FREDERICK WSHNGTNZN4 WSHNGTNZN5 BITTINGER FLINTSTONE GRANTSVL MCCOOLE WESTERNPT ASHTON236 LAUREL236 WSNG236Z14 WALDORF SMITHSBURG WSNGTNZN16 GAITHERSBG WSHNGTNZN6 LEONARDTN HUGHESVL HAGERSTOWN WSNGTNZN11 MIDDLETOWN RIDGE THURMONT WSNG238Z15 WSHNGTNZN3 MOUNT AIRY OAKLAND FRIENDSVL CUMBERLAND WSNG236Z13 WSNGTNZN12 KEEDYSVL MECHANCSVL ASHTON238

Exchange Listings (NXX)

NPA-NXX Carrier Rate Center Type LATA Status
227-200 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN2 Wireless 236 active
227-201 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
227-202 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
227-203 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD FREDERICK Landline 240 active
227-204 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Wireless 236 active
227-205 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN4 Wireless 236 active
227-206 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN5 Wireless 236 active
227-207 COMMIO, LLC BITTINGER VoIP 240 active
227-208 COMMIO, LLC FLINTSTONE VoIP 240 active
227-209 COMMIO, LLC GRANTSVL VoIP 240 active
227-210 COMMIO, LLC MCCOOLE VoIP 240 active
227-212 COMMIO, LLC WESTERNPT VoIP 240 active
227-213 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Wireless 236 active
227-214 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
227-215 NEW CINGULAR WIRELESS PCS, LLC - DC LAUREL236 Wireless 236 active
227-216 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
227-217 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
227-218 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNG236Z14 Wireless 236 active
227-219 MCIMETRO ACCESS TRANSMISSION SERVICES LLC ASHTON236 Landline 236 active
227-220 NEW CINGULAR WIRELESS PCS, LLC - DC WALDORF Wireless 236 active
227-221 COMMIO, LLC SMITHSBURG VoIP 240 active
227-222 WIDE VOICE, LLC - MD WSNGTNZN16 Landline 236 active
227-223 COMMIO, LLC FREDERICK VoIP 240 active
227-224 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN2 Wireless 236 active
227-225 NEW CINGULAR WIRELESS PCS, LLC - DC LAUREL236 Wireless 236 active
227-226 ONVOY, LLC - MD FREDERICK Landline 240 active
227-227 ONVOY, LLC - MD GAITHERSBG Landline 236 active
227-228 ONVOY, LLC - MD WSHNGTNZN2 Landline 236 active
227-229 ONVOY, LLC - MD WSHNGTNZN4 Landline 236 active
227-230 ONVOY, LLC - MD WSHNGTNZN5 Landline 236 active
227-231 ONVOY, LLC - MD WSHNGTNZN6 Landline 236 active
227-232 ONVOY, LLC - MD LAUREL236 Landline 236 active
227-233 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN2 Wireless 236 active
227-234 ONVOY, LLC - MD LEONARDTN Landline 236 active
227-235 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC HUGHESVL Wireless 236 active
227-236 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
227-237 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
227-238 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNG236Z14 Wireless 236 active
227-239 CALLWORKS CORPORATION HAGERSTOWN VoIP 240 active
227-240 BANDWIDTH.COM CLEC, LLC - MD WSNGTNZN11 VoIP 236 active
227-241 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
227-242 ONVOY, LLC - MD MIDDLETOWN Landline 240 active
227-243 ONVOY, LLC - MD ASHTON236 Landline 236 active
227-244 HD CARRIER LLC RIDGE VoIP 236 active
227-245 ONVOY, LLC - MD GAITHERSBG Landline 236 active
227-246 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN5 Wireless 236 active
227-247 ONVOY, LLC - MD THURMONT Landline 240 active
227-248 ONVOY, LLC - MD WSHNGTNZN2 Landline 236 active
227-249 BANDWIDTH.COM CLEC, LLC - MD WSHNGTNZN4 VoIP 236 active
227-250 ONVOY, LLC - MD WSNGTNZN10 Landline 236 active
227-251 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
227-252 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
227-253 ONVOY, LLC - MD FREDERICK Landline 240 active
227-254 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Wireless 236 active
227-255 BANDWIDTH.COM CLEC, LLC - MD WSHNGTNZN5 VoIP 236 active
227-256 ONVOY, LLC - MD WSHNGTNZN2 Landline 236 active
227-257 ONVOY, LLC - MD WSNG236Z14 Landline 236 active
227-258 NEW CINGULAR WIRELESS PCS, LLC - DC GAITHERSBG Wireless 236 active
227-259 NEW CINGULAR WIRELESS PCS, LLC - DC LAUREL236 Wireless 236 active
227-260 ONVOY, LLC - MD WSNG238Z15 Landline 238 active
227-261 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN2 Wireless 236 active
227-262 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
227-263 BANDWIDTH.COM CLEC, LLC - MD WALDORF VoIP 236 active
227-264 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Wireless 236 active
227-265 ONVOY, LLC - MD WSHNGTNZN3 Landline 236 active
227-266 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN2 Wireless 236 active
227-267 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
227-268 ONVOY, LLC - MD LAUREL236 Landline 236 active
227-269 ONVOY, LLC - MD WSHNGTNZN5 Landline 236 active
227-270 AT&T - LOCAL MOUNT AIRY Landline 240 active
227-271 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
227-272 ONVOY, LLC - MD OAKLAND Landline 240 active
227-273 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Wireless 236 active
227-274 ONVOY, LLC - MD WSNGTNZN10 Landline 236 active
227-275 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN4 Wireless 236 active
227-276 ONVOY, LLC - MD WSHNGTNZN3 Landline 236 active
227-277 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC GAITHERSBG Wireless 236 active
227-278 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WALDORF Wireless 236 active
227-279 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
227-280 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
227-281 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD FREDERICK Wireless 240 active
227-282 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Wireless 236 active
227-283 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
227-284 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL236 Wireless 236 active
227-285 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
227-286 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
227-287 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
227-288 ONVOY, LLC - MD HAGERSTOWN Landline 240 active
227-289 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WALDORF Wireless 236 active
227-290 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL236 Landline active
227-291 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC FRIENDSVL Wireless 240 active
227-292 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Wireless 236 active
227-293 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD CUMBERLAND Landline 240 active
227-294 ONVOY, LLC - MD WSNG236Z13 Landline active
227-295 WAVENATION, LLC HAGERSTOWN Landline active
227-296 ONVOY, LLC - MD WSNGTNZN12 Landline active
227-297 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL236 Landline active
227-298 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSNGTNZN10 Landline active
227-299 Landline active
227-300 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Landline active
227-301 Landline active
227-302 Landline active
227-303 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Landline active
227-304 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Landline active
227-305 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Landline active
227-306 Landline active
227-307 Landline active
227-308 Landline active
227-309 Landline active
227-310 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Landline active
227-312 Landline active
227-313 Landline active
227-314 Landline active
227-315 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Landline active
227-316 Landline active
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227-320 Landline active
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227-327 Landline active
227-328 Landline active
227-329 Landline active
227-330 Landline active
227-331 Landline active
227-332 Landline active
227-333 ONVOY, LLC - MD WSNGTNZN16 Landline 236 active
227-334 AT&T - LOCAL KEEDYSVL Landline 240 active
227-335 Landline active
227-336 Landline active
227-337 Landline active
227-338 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Landline active
227-339 Landline active
227-340 Landline active
227-341 Landline active
227-342 Landline active
227-343 Landline active
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227-363 Landline active
227-364 Landline active
227-365 Landline active
227-366 Landline active
227-367 Landline active
227-368 WIDE VOICE, LLC - MD MECHANCSVL Landline 236 active
227-369 Landline active
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227-437 Landline active
227-438 Landline active
227-439 Landline active
227-440 Landline active
227-441 Landline active
227-442 Landline active
227-443 Landline active
227-444 ONVOY, LLC - MD WSHNGTNZN2 Landline 236 active
227-445 Landline active
227-446 Landline active
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227-522 Landline active
227-523 Landline active
227-524 Landline active
227-525 Landline active
227-526 Landline active
227-527 Landline active
227-528 Landline active
227-529 ONVOY, LLC - MD GAITHERSBG Landline active
227-530 Landline active
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227-664 Landline active
227-665 Landline active
227-666 ONVOY, LLC - MD FREDERICK Landline active
227-667 Landline active
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227-670 Landline active
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227-720 Landline active
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227-722 ONVOY SPECTRUM, LLC WALDORF Wireless 236 active
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227-727 ONVOY SPECTRUM, LLC WSHNGTNZN6 Wireless 236 active
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227-770 ONVOY SPECTRUM, LLC WSNGTNZN11 Wireless 236 active
227-771 Landline active
227-772 ONVOY SPECTRUM, LLC WSHNGTNZN4 Wireless 236 active
227-773 Landline active
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227-777 WIDE VOICE, LLC - MD ASHTON238 Landline 238 active
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227-800 ONVOY SPECTRUM, LLC FREDERICK Wireless 240 active
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227-888 WIDE VOICE, LLC - MD WSNG238Z15 Landline 238 active
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227-903 Landline active
227-904 Landline active
227-905 Landline active
227-906 Landline active
227-907 Landline active
227-908 Landline active
227-909 Landline active
227-910 Landline active
227-912 Landline active
227-913 Landline active
227-914 Landline active
227-915 Landline active
227-916 Landline active
227-917 Landline active
227-918 Landline active
227-919 Landline active
227-920 Landline active
227-921 Landline active
227-922 Landline active
227-923 Landline active
227-924 Landline active
227-925 Landline active
227-926 Landline active
227-927 Landline active
227-928 Landline active
227-929 Landline active
227-930 Landline active
227-931 Landline active
227-932 Landline active
227-933 Landline active
227-934 Landline active
227-935 Landline active
227-936 Landline active
227-937 Landline active
227-938 Landline active
227-939 Landline active
227-940 Landline active
227-941 Landline active
227-942 Landline active
227-943 Landline active
227-944 Landline active
227-945 Landline active
227-946 Landline active
227-947 Landline active
227-948 Landline active
227-949 Landline active
227-951 Landline active
227-952 Landline active
227-953 Landline active
227-954 Landline active
227-955 Landline active
227-956 Landline active
227-957 Landline active
227-960 Landline active
227-961 Landline active
227-962 Landline active
227-963 Landline active
227-964 Landline active
227-965 Landline active
227-966 Landline active
227-967 Landline active
227-968 Landline active
227-969 Landline active
227-970 Landline active
227-971 Landline active
227-972 Landline active
227-973 Landline active
227-974 Landline active
227-975 Landline active
227-977 Landline active
227-978 Landline active
227-979 Landline active
227-980 Landline active
227-981 Landline active
227-982 Landline active
227-983 Landline active
227-984 Landline active
227-985 Landline active
227-986 Landline active
227-987 Landline active
227-988 Landline active
227-989 Landline active
227-990 Landline active
227-991 Landline active
227-992 Landline active
227-993 Landline active
227-994 Landline active
227-995 Landline active
227-996 Landline active
227-997 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN2 Wireless 236 active
227-998 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN2 Wireless 236 active
227-999 WIDE VOICE, LLC - MD WSNGTNZN10 Landline 236 active

Area code 227 shares its geographic region with the following overlay area codes:

240 301