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: 503

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-503 A Plymouth MA BSTPMALLRMD  8345 GLOBAL CROSSING LOCAL SERVICES, INC. - MA 128      
508-503 0 Plymouth MA BRTNMACR0MD  3370 CTC COMMUNICATIONS CORP. - MA 128   2004-05-09   
508-503 1 Plymouth MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-10-23   
508-503 2 Plymouth MA BRTNMACR0MD  3370 CTC COMMUNICATIONS CORP. - MA 128   2004-03-06   
508-503 3 Plymouth MA BSTPMALLRMD  8345 GLOBAL CROSSING LOCAL SERVICES, INC. - MA 128      
508-503 4 Plymouth MA SOVLMAABBMD  145J TERRA NOVA TELECOM INC. 128   2023-06-22   
508-503 5 Plymouth MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-02-03   
508-503 6 Plymouth MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-28   
508-503 7 Plymouth MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-07-15   
508-503 8 Plymouth MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-06-07   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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