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: 408

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-408 A Berlin NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-408 2 Berlin NH   7778 BROOKS FIBER COMMUNICATIONS OF NEW HAMPSHIRE - NH 122   2020-03-24   
603-408 6 Berlin NH   8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2019-05-17   
603-408 8 Berlin NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2016-01-23   
603-408 9 Berlin NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2016-01-23   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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