Local Calling Guide

Area code/prefix search

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

NXX: 913

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-913 A Merrimack NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-913 0 Merrimack NH PTMONH073MD  9827 OTEL TELEKOM, INC. - NH 122   2004-10-09   
603-913 1 Merrimack NH MNCHNHCOCM1  5562 METROPCS, INC. 122   2004-10-18   
603-913 2 Merrimack NH   829J PAETEC ITEL, LLC 122      
603-913 3 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2004-09-02   
603-913 4 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-03-04   
603-913 5 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-09-01   
603-913 6 Merrimack NH   829J PAETEC ITEL, LLC 122      
603-913 7 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2007-05-03   
603-913 8 Merrimack NH   829J PAETEC ITEL, LLC 122   2007-05-05   
603-913 9 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2008-03-03   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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