| npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
| 515-386 | IA | JEFFERSON TEL. CO. | 1212 | JEFFERSON | JFSNIAXCDS1 | 00/00/0000 | Prefix Type: N/A Switch Name: JEFFERSON Switch Type: N/A LATA: Des Moines IA (632) Tandem: N/A Detailed Switch Info |
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Last Updated: Sat Dec 6 04:00:19 2025