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: 638

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-638 A Monroe NH BARNVTCHRS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-638 1 Monroe NH   145J TERRA NOVA TELECOM INC. 122   2023-01-12   
603-638 2 Monroe NH BARNVTCHRS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-638 4 Monroe NH BARNVTCHRS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-638 7 Monroe NH   145J TERRA NOVA TELECOM INC. 122   2022-07-01   
603-638 8 Monroe NH MNCHNHCOXPZ  853C TIME WARNER CABLE INFORMATION SVCS (NEW HAMPSHIRE) 122   2012-10-02   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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