| npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
| 563-452 | IA | CLARENCE TEL. CO. INC. | 1130 | CLARENCE | CLNCIAXODS0 | 00/00/0000 | Prefix Type: ICO Switch Name: CLARENCE Switch Type: N/A LATA: Cedar Rapids IA (635) Tandem: N/A Detailed Switch Info |
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Last Updated: Thu Feb 12 03:58:08 2026