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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-317 A Milan NH MNCHNHACDS0  7778 BROOKS FIBER COMMUNICATIONS OF NEW HAMPSHIRE - NH 122      
603-317 4 Milan NH   9827 OTEL TELEKOM, INC. - NH 122   2002-09-19   
603-317 5 Milan NH   4017 LEVEL 3 COMMUNICATIONS - NH 122   2005-09-15   
603-317 9 Milan NH   7778 BROOKS FIBER COMMUNICATIONS OF NEW HAMPSHIRE - NH 122      

Last updated: Wed, 01 Apr 2020 02:09:16 UTC

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