Local Calling Guide

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

NXX: 696

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-696 A Manchester NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-696 0 Manchester NH   624H ONVOY SPECTRUM, LLC 122   2022-01-07   
603-696 1 Manchester NH   637E ONVOY, LLC - NH 122   2021-08-01   
603-696 2 Manchester NH   637E ONVOY, LLC - NH 122   2021-08-01   
603-696 3 Manchester NH   637E ONVOY, LLC - NH 122   2021-08-01   
603-696 4 Manchester NH   637E ONVOY, LLC - NH 122   2021-09-10   
603-696 5 Manchester NH   637E ONVOY, LLC - NH 122   2021-09-10   
603-696 6 Manchester NH   637E ONVOY, LLC - NH 122   2021-06-16   
603-696 7 Manchester NH   637E ONVOY, LLC - NH 122   2021-09-10   
603-696 8 Manchester NH   624H ONVOY SPECTRUM, LLC 122   2021-09-26   
603-696 9 Manchester NH   624H ONVOY SPECTRUM, LLC 122   2021-09-26   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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