Local Calling Guide

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

NXX: 554

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-554 A Milford NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-554 0 Milford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2012-12-19   
603-554 1 Milford NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2008-09-16   
603-554 2 Milford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2011-05-17   
603-554 3 Milford NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2023-07-06   
603-554 4 Milford NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-554 5 Milford NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-554 6 Milford NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-554 7 Milford NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-554 8 Milford NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2011-06-27   
603-554 9 Milford NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122   2012-05-18   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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