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: 475 [Rate centres in NPA 475] [Dial plan for NPA 475]

NXX: 346

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-346 A Stamford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-02-11   
475-346 0 Stamford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-346 1 Stamford CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-346 2 Stamford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-346 3 Stamford CT   639C ONVOY, LLC - CT 920      
475-346 4 Stamford CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-346 5 Stamford CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-346 6 Stamford CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-346 7 Stamford CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-346 8 Stamford CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-346 9 Stamford CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.