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: 927

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-927 A Sutton NH STTNNHXARP0  0047 MERRIMACK COUNTY TEL. CO. 122      
603-927 0 Sutton NH STTNNHXARP0  0047 MERRIMACK COUNTY TEL. CO. 122      
603-927 1 Sutton NH STTNNHXARP0  0047 MERRIMACK COUNTY TEL. CO. 122      
603-927 2 Sutton NH STTNNHXARP0  0047 MERRIMACK COUNTY TEL. CO. 122      
603-927 4 Sutton NH STTNNHXARP0  0047 MERRIMACK COUNTY TEL. CO. 122      
603-927 6 Sutton NH   145J TERRA NOVA TELECOM INC. 122   2025-07-11   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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