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: 683

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-683 A Marlboro MA FRMNMAUNX0X  3370 CTC COMMUNICATIONS CORP. - MA 128      
508-683 0 Marlboro MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2011-07-11   
508-683 1 Marlboro MA FRMNMAUNX0X  3370 CTC COMMUNICATIONS CORP. - MA 128      
508-683 2 Marlboro MA FRMNMAUNX0X  3370 CTC COMMUNICATIONS CORP. - MA 128      
508-683 3 Marlboro MA FRMNMAUNX0X  3370 CTC COMMUNICATIONS CORP. - MA 128      
508-683 4 Marlboro MA MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128   2004-07-09   
508-683 5 Marlboro MA MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128   2004-07-09   
508-683 6 Marlboro MA MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128   2004-07-09   
508-683 7 Marlboro MA BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128   2007-12-15   
508-683 8 Marlboro MA FRMNMAUNX0X  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128   2008-10-24   
508-683 9 Marlboro MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2013-12-01   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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