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: 291

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-291 A Greenville NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-291 0 Greenville NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2006-12-10   
603-291 1 Greenville NH   829J PAETEC ITEL, LLC 122   2007-09-11   
603-291 2 Greenville NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2015-08-04   
603-291 3 Greenville NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122   2013-08-30   
603-291 7 Greenville NH MNCHNHBO2MD  490J DISH WIRELESS, LLC 122   2024-01-14   
603-291 9 Greenville NH MNCHNHCO23Z  073H TELNYX LLC 122   2024-07-01   

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

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