District of Columbia Area Codes
Data last updated: June 25, 2026
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 | 92 |
| OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | 59 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 58 |
| ONVOY, LLC - DC | 850D | 46 |
| METROPCS, INC. | 5562 | 44 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 43 |
| BANDWIDTH.COM CLEC, LLC - DC | 074F | 36 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | 25 |
| LEVEL 3 COMMUNICATIONS, LLC - DC | 6117 | 23 |