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: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-457 A Falmouth MA FLMOMAMGDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-457 0 Falmouth MA FLMOMAMGDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-457 1 Falmouth MA FLMOMAMGDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-457 2 Falmouth MA FLMOMAMGDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-457 3 Falmouth MA FLMOMAMGDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-457 4 Falmouth MA FLMOMAMGDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-457 5 Falmouth MA FLMOMAMGDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-457 6 Falmouth MA FLMOMAMGDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-457 7 Falmouth MA FLMOMAMGDS0  9102 VERIZON NEW ENGLAND INC. 128      
508-457 8 Falmouth MA   145J TERRA NOVA TELECOM INC. 128      
508-457 9 Falmouth MA FLMOMAMGDS0  9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.