Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-310 A Bedford NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-310 0 Bedford NH PTMONH073MD  9827 OTEL TELEKOM, INC. - NH 122   2004-10-09   
603-310 1 Bedford NH MNCHNHCO23Z  073H TELNYX LLC 122   2022-10-27   
603-310 2 Bedford NH MNCHNHCOX1Y  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2002-11-15   
603-310 3 Bedford NH   829J PAETEC ITEL, LLC 122   2007-05-04   
603-310 4 Bedford NH   829J PAETEC ITEL, LLC 122   2002-09-10   
603-310 5 Bedford NH   829J PAETEC ITEL, LLC 122   2015-03-03   
603-310 6 Bedford NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122   2020-03-24   
603-310 7 Bedford NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2015-01-12   
603-310 8 Bedford NH MNCHNHAC3MD  939H COMMIO, LLC 122   2022-11-05   
603-310 9 Bedford NH   829J PAETEC ITEL, LLC 122   2001-01-05   

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

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