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| npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
| 618-426 | IL | FRONTIER NORTH, INC. - IL (Frontier Communications) | 1015 | AVA | AVA ILXERS0 | 00/00/0000 | Prefix Type: ICO Switch Name: AVA Switch Type: Northern Telecom Remote Switching Center LATA: N/A Tandem: N/A Detailed Switch Info |
| 618-970 | IL | ONVOY, LLC (Sinch) | 224C | AVA | CRDLILXEX8X | 07/26/2023 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: N/A Tandem: N/A Detailed Switch Info |
