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: 434

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-434 A Charlton MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-434 0 Charlton MA OXFRMAAKPS0  293C CHARTER FIBERLINK MA-CCO, LLC - MA 128   2004-06-25   
508-434 1 Charlton MA OXFRMAAKPS0  293C CHARTER FIBERLINK MA-CCO, LLC - MA 128   2011-11-06   
508-434 2 Charlton MA WRCSMACEX1X  3370 CTC COMMUNICATIONS CORP. - MA 128   2003-04-22   
508-434 3 Charlton MA WRCSMACEX1X  3370 CTC COMMUNICATIONS CORP. - MA 128   2005-02-03   
508-434 4 Charlton MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-434 5 Charlton MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-02-11   
508-434 6 Charlton MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2012-11-25   
508-434 7 Charlton MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2004-01-19   
508-434 8 Charlton MA BSTPMALLZMD  506J TWILIO INTERNATIONAL, INC. 128   2020-12-19   
508-434 9 Charlton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-07-10   

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

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