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| npa-nxx | State | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 760-389 | CA | FRONTIER CALIFORNIA INC. (Frontier Communications) | N/A | 4420 | SUMMIT VLY | SMVYCAXFRSA | 00/00/0000 | Prefix Type: ICO Switch Name: SUMMIT VALLEY Switch Type: NTDMSOPS LATA: Los Angeles CA (730) Tandem: VTVLCAXA79T 🔧 Explore Switch(CLLI: SMVYCAXFRSA)) | |
| 760-389 is split into 1,000-number blocks - detail below | |||||||||
| 760-389-2XXX | CA | FRONTIER CALIFORNIA INC. (Frontier Communications) | N/A | 4420 | SUMMIT VLY | SMVYCAXFRSA | N/A | Prefix Type: ICO Switch Name: SUMMIT VALLEY Switch Type: NTDMSOPS LATA: Los Angeles CA (730) Tandem: VTVLCAXA79T 🔧 Explore Switch(CLLI: SMVYCAXFRSA)) |