Local Calling Guide

Area code/prefix search

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

NXX: 573

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-573 A Concord NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-573 0 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2014-09-01   
603-573 1 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2013-10-01   
603-573 2 Concord NH CNCRNHSODS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2012-12-12   
603-573 3 Concord NH MNCHNHCO37Z  7421 AT&T - LOCAL 122   2000-12-15   
603-573 4 Concord NH MNCHNHCO37Z  7421 AT&T - LOCAL 122   2002-09-09   
603-573 5 Concord NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2007-07-09   
603-573 6 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2013-01-31   
603-573 7 Concord NH CNCRNHSODS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2012-12-12   
603-573 8 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2017-09-19   
603-573 9 Concord NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      

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

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