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: 277

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-277 A Wilton CT NWLNCTCS6MD  508J CENTURYLINK COMMUNICATIONS, LLC 920      
475-277 0 Wilton CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920      
475-277 1 Wilton CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-277 2 Wilton CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920      
475-277 3 Wilton CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920      
475-277 4 Wilton CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-277 5 Wilton CT HRFRCT03CMD  197D VONAGE AMERICA LLC 920      
475-277 6 Wilton CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920      
475-277 7 Wilton CT NWLNCTCS6MD  508J CENTURYLINK COMMUNICATIONS, LLC 920      
475-277 8 Wilton CT HRFRCT03HMD  073H TELNYX LLC 920      
475-277 9 Wilton CT HRFRCT03XMX  145J TERRA NOVA TELECOM INC. 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.