GREENFIELD — MO
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BRIGHTSPEED OF EAST MISSOURI, LLC | 1151 | 1 |
| RYSTEC, INC | 142C | 1 |
| MCC TELEPHONY LLC | 593K | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| BRIGHTSPEED OF EAST MISSOURI, LLC | 1151 | 1 |
| RYSTEC, INC | 142C | 1 |
| MCC TELEPHONY LLC | 593K | 1 |