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: 671

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-671 A Franklin NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-671 0 Franklin NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122   2002-12-04   
603-671 1 Franklin NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122   2005-01-14   
603-671 2 Franklin NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122   2001-09-10   
603-671 3 Franklin NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-04   
603-671 4 Franklin NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122   2002-09-10   
603-671 5 Franklin NH MNCHNHCOX9Y  2698 CTC COMMUNICATIONS CORP. - NH 122   2004-11-13   
603-671 7 Franklin NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122   2008-04-18   
603-671 8 Franklin NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2006-10-30   
603-671 9 Franklin NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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