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: 213

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-213 A Webster MA WRCSMA02DS1  7135 TC SYSTEMS, INC. 128      
508-213 0 Webster MA   892D ONVOY, LLC - MA 128   2017-05-10   
508-213 1 Webster MA   7135 TC SYSTEMS, INC. 128      
508-213 2 Webster MA   7135 TC SYSTEMS, INC. 128      
508-213 3 Webster MA   892D ONVOY, LLC - MA 128   2016-03-17   
508-213 4 Webster MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-10-23   
508-213 5 Webster MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-06-17   
508-213 6 Webster MA   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2023-10-27   
508-213 7 Webster MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-05-15   
508-213 8 Webster MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-06-19   
508-213 9 Webster MA   892D ONVOY, LLC - MA 128   2016-03-17   

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

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