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: 409

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-409 A Laconia NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-409 0 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2017-08-21   
603-409 1 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2019-08-30   
603-409 2 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2018-03-09   
603-409 3 Laconia NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2025-02-10   
603-409 4 Laconia NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2017-10-14   
603-409 5 Laconia NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2016-07-23   
603-409 6 Laconia NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2020-05-24   
603-409 7 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2016-02-29   
603-409 8 Laconia NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122   2016-12-16   
603-409 9 Laconia NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2015-11-27   

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

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