District of Columbia Area Codes

District of Columbia Area Codes

Data last updated: March 10, 2026

Area Codes
2
Exchanges
1,570
Carriers
45
Rate Centers
2

Area Codes in District of Columbia

NPA Major Cities Status Exchanges Overlay
202 Washington, Beltsville, Chevy Chase Active 784 Yes
771 Washington, Vienna, Occoquan Active 786 Yes

Top Carriers in District of Columbia

Carrier OCN NXX Count
VERIZON WASHINGTON DC, INC. 9211 327
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 6402 91
NEW CINGULAR WIRELESS PCS, LLC - DC 4036 58
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 58
METROPCS, INC. 5562 45
ONVOY, LLC - DC 850D 45
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 43
BANDWIDTH.COM CLEC, LLC - DC 074F 35
TELEPORT COMMUNICATIONS AMERICA, LLC - DC 7529 25
LEVEL 3 COMMUNICATIONS, LLC - DC 6117 23