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: 751

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-751 A Worcester MA WRCSMACEDS3  9102 VERIZON NEW ENGLAND INC. 128      
508-751 0 Worcester MA   145J TERRA NOVA TELECOM INC. 128   2022-05-05   
508-751 1 Worcester MA WRCSMACEDS3  9102 VERIZON NEW ENGLAND INC. 128      
508-751 2 Worcester MA WRCSMACEDS3  9102 VERIZON NEW ENGLAND INC. 128      
508-751 3 Worcester MA SOVLMAABBMD  145J TERRA NOVA TELECOM INC. 128   2022-12-15   
508-751 4 Worcester MA WRCSMACEDS3  9102 VERIZON NEW ENGLAND INC. 128      
508-751 5 Worcester MA WRCSMACEDS3  9102 VERIZON NEW ENGLAND INC. 128      
508-751 6 Worcester MA WRCSMACEDS3  9102 VERIZON NEW ENGLAND INC. 128      
508-751 7 Worcester MA WRCSMACEDS3  9102 VERIZON NEW ENGLAND INC. 128      
508-751 8 Worcester MA WRCSMACEDS3  9102 VERIZON NEW ENGLAND INC. 128      
508-751 9 Worcester MA WRCSMACEDS3  9102 VERIZON NEW ENGLAND INC. 128      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.