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: 406

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-406 A Mansfield MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2021-01-05   
508-406 0 Mansfield MA SOVLMAABBMD  145J TERRA NOVA TELECOM INC. 128   2021-09-30   
508-406 1 Mansfield MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2007-01-23   
508-406 2 Mansfield MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128   2004-12-23   
508-406 3 Mansfield MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-12-20   
508-406 4 Mansfield MA SOVLMAABBMD  145J TERRA NOVA TELECOM INC. 128   2021-01-18   
508-406 5 Mansfield MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-406 6 Mansfield MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-12-20   
508-406 7 Mansfield MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-24   
508-406 8 Mansfield MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2007-07-23   
508-406 9 Mansfield MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-24   

Last updated: Fri, 13 May 2022 22:16:13 UTC

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