BORREGO — CA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| IP HORIZON LLC | 515J | 1 |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | 1 |
| PACIFIC BELL | 9740 | 1 |
| BANDWIDTH.COM CLEC, LLC - CA | 981E | 1 |