npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
641-683 | IA | QWEST CORPORATION | 9631 | OTTUMWA | OTTMIATCDS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: OTTUMWA Switch Type: Northern Telecom DMS100 (Digital) LATA: Des Moines IA (632) Tandem: DESMIADT18T Detailed Switch Info |