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: 348

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-348 A Danbury CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
475-348 0 Danbury CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2020-05-18   
475-348 1 Danbury CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2020-06-18   
475-348 2 Danbury CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2021-08-14   
475-348 3 Danbury CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2021-09-25   
475-348 4 Danbury CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2023-07-15   
475-348 5 Danbury CT HRFRCT03CMD  197D VONAGE AMERICA LLC 920   2021-06-29   
475-348 6 Danbury CT HRFRCT0383Z  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920   2021-06-29   
475-348 7 Danbury CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-06-21   
475-348 8 Danbury CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-06-21   
475-348 9 Danbury CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2020-05-17   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.