npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
641-998 | IA | FRONTIER COMMUNICATIONS OF IOWA, INC. (Frontier Communications) | 1127 | THORNTON | THTNIAXORS9 | 00/00/0000 | Prefix Type: ICO Switch Name: THORNTON Switch Type: Northern Telecom DMS10 RSLE LATA: Des Moines IA (632) Tandem: N/A Detailed Switch Info |