SANANTONIO — MO
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| AT&T ENTERPRISES, LLC | 516C | 1 |
| CSC VOICE, LLC | 612K | 1 |
| SOUTHWESTERN BELL | 9533 | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| AT&T ENTERPRISES, LLC | 516C | 1 |
| CSC VOICE, LLC | 612K | 1 |
| SOUTHWESTERN BELL | 9533 | 1 |