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: 456

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-456 A Warner NH WRNRNHXARP0  0047 MERRIMACK COUNTY TEL. CO. 122      
603-456 0 Warner NH WRNRNHXARP0  0047 MERRIMACK COUNTY TEL. CO. 122      
603-456 1 Warner NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2022-03-11   
603-456 2 Warner NH WRNRNHXARP0  0047 MERRIMACK COUNTY TEL. CO. 122      
603-456 3 Warner NH WRNRNHXARP0  0047 MERRIMACK COUNTY TEL. CO. 122      
603-456 4 Warner NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2024-07-23   
603-456 5 Warner NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2023-09-05   
603-456 8 Warner NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2014-07-01   
603-456 9 Warner NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2022-10-19   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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