Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 709

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-709 A Plainfield NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-709 0 Plainfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2023-07-06   
603-709 2 Plainfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2022-01-15   
603-709 3 Plainfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2023-04-20   
603-709 4 Plainfield NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-10-08   
603-709 5 Plainfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2022-12-23   
603-709 6 Plainfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2021-08-02   
603-709 7 Plainfield NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2006-10-31   
603-709 8 Plainfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2021-05-23   

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

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