Local Calling Guide

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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 550

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-550 A Dover NH MNCHNHCO22Z  073H TELNYX LLC 122      
603-550 0 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2022-01-22   
603-550 1 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2022-01-22   
603-550 2 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2022-01-22   
603-550 3 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2022-01-22   
603-550 4 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2022-01-22   
603-550 5 Dover NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2022-01-22   
603-550 6 Dover NH MNCHNHNI9MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2022-02-21   
603-550 7 Dover NH MNCHNHCO22Z  073H TELNYX LLC 122   2022-04-03   
603-550 8 Dover NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122   2022-02-14   
603-550 9 Dover NH MNCHNHNI9MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2022-01-21   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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