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| npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
| 641-514 | IA | NEW CINGULAR WIRELESS PCS, LLC - IL (AT&T Wireless) | 6534 | THOMPSON | DESMIADTXKX | 02/22/2022 | Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Des Moines IA (632) Tandem: N/A Detailed Switch Info |
| 641-584 | IA | WINNEBAGO COOP. TEL. ASSN. - IA | 1337 | THOMPSON | LKMLIAXODS1 | 00/00/0000 | Prefix Type: ICO Switch Name: LAKE MILLS Switch Type: N/A LATA: Des Moines IA (632) Tandem: N/A Detailed Switch Info |