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: 506

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-506 A Oxford MA   829J PAETEC ITEL, LLC 128      
508-506 0 Oxford MA   829J PAETEC ITEL, LLC 128   2003-08-09   
508-506 1 Oxford MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-09-10   
508-506 2 Oxford MA   829J PAETEC ITEL, LLC 128   2012-08-15   
508-506 3 Oxford MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2013-05-01   
508-506 4 Oxford MA   515J IP HORIZON LLC 128   2015-10-24   
508-506 5 Oxford MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-28   
508-506 6 Oxford MA WRCSMA02DS1  7135 TC SYSTEMS, INC. 128   2012-11-26   
508-506 7 Oxford MA BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128   2014-04-25   
508-506 8 Oxford MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-04   
508-506 9 Oxford MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-04   

Last updated: Sat, 04 Jul 2026 13:07:56 UTC

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