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: 757

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-757 A Keene NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-757 0 Keene NH   829J PAETEC ITEL, LLC 122      
603-757 1 Keene NH   829J PAETEC ITEL, LLC 122   2005-04-30   
603-757 2 Keene NH   6386 BELL ATLANTIC MOBILE, INC 122   2013-12-01   
603-757 3 Keene NH   6386 BELL ATLANTIC MOBILE, INC 122   2012-04-15   
603-757 4 Keene NH   996E BANDWIDTH.COM CLEC, LLC - NH 122   2010-11-29   
603-757 5 Keene NH   637E ONVOY, LLC - NH 122   2023-07-10   
603-757 6 Keene NH   6386 BELL ATLANTIC MOBILE, INC 122   2014-12-16   
603-757 7 Keene NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2013-09-18   
603-757 8 Keene NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2017-03-11   
603-757 9 Keene NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2015-09-16   

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

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