Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 508 [Rate centres in NPA 508] [Dial plan for NPA 508]

NXX: 258

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-258 A Dennis MA   829J PAETEC ITEL, LLC 128      
508-258 0 Dennis MA   318J COMCAST IP PHONE, LLC 128   2005-05-06   
508-258 1 Dennis MA   145J TERRA NOVA TELECOM INC. 128   2023-02-19   
508-258 2 Dennis MA   829J PAETEC ITEL, LLC 128   2004-11-12   
508-258 3 Dennis MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-08   
508-258 4 Dennis MA   892D ONVOY, LLC - MA 128   2023-05-22   
508-258 5 Dennis MA   318J COMCAST IP PHONE, LLC 128   2016-06-30   
508-258 6 Dennis MA   829J PAETEC ITEL, LLC 128      
508-258 7 Dennis MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-02-01   
508-258 8 Dennis MA   316E YMAX COMMUNICATIONS CORP. - MA 128   2008-03-08   
508-258 9 Dennis MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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