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: 910

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-910 A Hampton NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-910 0 Hampton NH   145J TERRA NOVA TELECOM INC. 122   2025-05-01   
603-910 2 Hampton NH MNCHNHBO2MD  490J DISH WIRELESS, LLC 122   2023-10-27   
603-910 5 Hampton NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2015-11-17   
603-910 6 Hampton NH   829J PAETEC ITEL, LLC 122      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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