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: 760

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-760 A Seabrook NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122      
603-760 0 Seabrook NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2002-09-19   
603-760 1 Seabrook NH   829J PAETEC ITEL, LLC 122   2005-04-18   
603-760 2 Seabrook NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2002-08-05   
603-760 3 Seabrook NH MNCHNHCOX1Y  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2002-11-15   
603-760 4 Seabrook NH   145J TERRA NOVA TELECOM INC. 122   2022-12-15   
603-760 5 Seabrook NH   829J PAETEC ITEL, LLC 122   2002-11-23   
603-760 6 Seabrook NH   829J PAETEC ITEL, LLC 122   2008-03-31   
603-760 7 Seabrook NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-07   
603-760 8 Seabrook NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2010-08-20   
603-760 9 Seabrook NH PTMONH073MD  9827 OTEL TELEKOM, INC. - NH 122   2005-05-14   

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

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