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: 424

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-424 A Framingham MA FRMNMAUNDS8  9102 VERIZON NEW ENGLAND INC. 128      
508-424 0 Framingham MA FRMNMAUNDS8  9102 VERIZON NEW ENGLAND INC. 128      
508-424 1 Framingham MA FRMNMAUNDS8  9102 VERIZON NEW ENGLAND INC. 128      
508-424 2 Framingham MA FRMNMAUNDS8  9102 VERIZON NEW ENGLAND INC. 128      
508-424 3 Framingham MA FRMNMAUNDS8  9102 VERIZON NEW ENGLAND INC. 128      
508-424 4 Framingham MA FRMNMAUNDS8  9102 VERIZON NEW ENGLAND INC. 128      
508-424 5 Framingham MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2018-04-21   
508-424 6 Framingham MA FRMNMAUNDS8  9102 VERIZON NEW ENGLAND INC. 128      
508-424 7 Framingham MA FRMNMAUNDS8  9102 VERIZON NEW ENGLAND INC. 128      
508-424 8 Framingham MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2012-01-18   
508-424 9 Framingham MA FRMNMAUNDS8  9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.