Local Calling Guide

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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 501

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-501 A Portsmouth NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-501 0 Portsmouth NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2006-06-04   
603-501 1 Portsmouth NH   829J PAETEC ITEL, LLC 122   2007-12-28   
603-501 2 Portsmouth NH   829J PAETEC ITEL, LLC 122      
603-501 3 Portsmouth NH   829J PAETEC ITEL, LLC 122      
603-501 4 Portsmouth NH   829J PAETEC ITEL, LLC 122      
603-501 5 Portsmouth NH   829J PAETEC ITEL, LLC 122      
603-501 6 Portsmouth NH   829J PAETEC ITEL, LLC 122      
603-501 7 Portsmouth NH   829J PAETEC ITEL, LLC 122      
603-501 8 Portsmouth NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2006-10-02   
603-501 9 Portsmouth NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2006-05-16   

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

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