Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 508 [Rate centres in NPA 508] [Dial plan for NPA 508]

NXX: 788

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-788 A Framingham MA NFRMMAEDDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-788 0 Framingham MA NFRMMAEDDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-788 1 Framingham MA NFRMMAEDDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-788 2 Framingham MA NFRMMAEDDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-788 3 Framingham MA NFRMMAEDDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-788 4 Framingham MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2013-05-18   
508-788 5 Framingham MA NFRMMAEDDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-788 6 Framingham MA NFRMMAEDDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-788 7 Framingham MA NFRMMAEDDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-788 8 Framingham MA SOVLMAABBMD  145J TERRA NOVA TELECOM INC. 128   2024-02-03   
508-788 9 Framingham MA NFRMMAEDDS0  9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.