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: 689

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-689 A Nashua NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-689 0 Nashua NH PTMONH073MD  9827 OTEL TELEKOM, INC. - NH 122   2004-10-09   
603-689 1 Nashua NH   829J PAETEC ITEL, LLC 122   2001-05-01   
603-689 2 Nashua NH   829J PAETEC ITEL, LLC 122   2004-12-31   
603-689 3 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-01-02   
603-689 4 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-01-02   
603-689 5 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2004-02-17   
603-689 6 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-08-01   
603-689 7 Nashua NH   829J PAETEC ITEL, LLC 122      
603-689 8 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2003-09-18   
603-689 9 Nashua NH   829J PAETEC ITEL, LLC 122      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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