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: 329

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-329 A Westboro MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-329 0 Westboro MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-329 1 Westboro MA OXFRMAAK1MD  792K CHARTER IP ENABLED SERVICES, LLC 128   2005-01-02   
508-329 2 Westboro MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-329 3 Westboro MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-329 4 Westboro MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-329 5 Westboro MA OXFRMAAK1MD  792K CHARTER IP ENABLED SERVICES, LLC 128   2008-04-18   
508-329 6 Westboro MA OXFRMAAK1MD  792K CHARTER IP ENABLED SERVICES, LLC 128   2013-01-27   
508-329 7 Westboro MA BRTNMACOX2X  829J PAETEC ITEL, LLC 128   2010-10-26   
508-329 8 Westboro MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-08-13   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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