MEXICO — MO
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| SOUTHWESTERN BELL | 9533 | 3 |
| ONVOY, LLC - MO | 093F | 1 |
| PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | 1 |
| CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | 1 |