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: 678

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-678 A Lebanon NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-678 0 Lebanon NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2022-03-11   
603-678 1 Lebanon NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2018-09-20   
603-678 2 Lebanon NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2023-08-08   
603-678 3 Lebanon NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2015-10-29   
603-678 4 Lebanon NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-678 5 Lebanon NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2015-09-14   
603-678 6 Lebanon NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2016-09-21   
603-678 7 Lebanon NH MNCHNHCO22Z  073H TELNYX LLC 122   2023-02-03   
603-678 8 Lebanon NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2012-05-18   
603-678 9 Lebanon NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2013-07-31   

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

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