RIO VISTA — CA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| CITIZENS TELECOM CA. DBA FRONTIER COM OF CA | 2308 | 2 |
| BOOST SUBSCRIBERCO L.L.C. | 490J | 1 |
| IP HORIZON LLC | 515J | 1 |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| CITIZENS TELECOM CA. DBA FRONTIER COM OF CA | 2308 | 2 |
| BOOST SUBSCRIBERCO L.L.C. | 490J | 1 |
| IP HORIZON LLC | 515J | 1 |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | 1 |