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: 501

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-501 A Georgetown CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-501 0 Georgetown CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920      
475-501 1 Georgetown CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-501 2 Georgetown CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-501 3 Georgetown CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-501 4 Georgetown CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-501 6 Georgetown CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-501 7 Georgetown CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920      
475-501 8 Georgetown CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920      
475-501 9 Georgetown CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.