DANVILLE — CA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| PACIFIC BELL | 9740 | 12 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 4 |
| METROPCS, INC. | 5562 | 3 |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | 3 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 3 |