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: 565

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-565 A Penacook NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-565 0 Penacook NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2005-09-15   
603-565 1 Penacook NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122   2006-05-20   
603-565 2 Penacook NH MNCHNHCOXCZ  996E BANDWIDTH.COM CLEC, LLC - NH 122   2002-09-20   
603-565 3 Penacook NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122   2023-04-30   
603-565 4 Penacook NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-565 5 Penacook NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2012-05-18   

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

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