SAN ISIDRO — TX
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| VALLEY TEL. COOP., INC. | 2159 | 1 |
| CENTURYLINK COMMUNICATIONS, LLC | 508J | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| VALLEY TEL. COOP., INC. | 2159 | 1 |
| CENTURYLINK COMMUNICATIONS, LLC | 508J | 1 |