npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
641-873 | IA | GRAND RIVER MUTUAL TEL CO | 1888 | ALLERTON | LEONIAXODS0 | 00/00/0000 | Prefix Type: ICO Switch Name: LEON Switch Type: Northern Telecom DMS10 (Digital) LATA: Des Moines IA (632) Tandem: N/A Detailed Switch Info |