Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 475 [Rate centres in NPA 475] [Dial plan for NPA 475]

NXX: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-231 A Trumbull CT WLMNCT131MD  777C CHARTER FIBERLINK CT-CCO, LLC - CT 920      
475-231 0 Trumbull CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT DBA T-MOBILE USA 920   2017-02-05   
475-231 1 Trumbull CT WLMNCT131MD  777C CHARTER FIBERLINK CT-CCO, LLC - CT 920   2016-09-22   
475-231 2 Trumbull CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2018-11-04   
475-231 3 Trumbull CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2019-04-22   
475-231 4 Trumbull CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2019-04-22   
475-231 5 Trumbull CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT DBA T-MOBILE USA 920   2019-08-10   
475-231 6 Trumbull CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2020-01-20   
475-231 7 Trumbull CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2020-01-20   
475-231 8 Trumbull CT HRFRCT03HMD  073H TELNYX LLC 920   2017-06-05   
475-231 9 Trumbull CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2018-04-14   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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