Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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New Durham, NH

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
603-701 A ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122      
603-701 2 ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122   2009-12-11   
603-859 A NWDRNHXARP0  0049 UNION TEL. CO. 122      
603-859 0 NWDRNHXARP0  0049 UNION TEL. CO. 122      
603-859 2 NWDRNHXARP0  0049 UNION TEL. CO. 122      
603-859 4 NWDRNHXARP0  0049 UNION TEL. CO. 122      
603-859 8 MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2025-01-18   
603-859 9 NWDRNHXARP0  0049 UNION TEL. CO. 122      

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

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