Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX: 718

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-718 A Cheshire CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2025-04-26   
203-718 0 Cheshire CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-03   
203-718 1 Cheshire CT WTRBCT001MD  3863 CTC COMMUNICATIONS CORP. - CT 920   2004-06-06   
203-718 2 Cheshire CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-718 3 Cheshire CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2020-11-22   
203-718 4 Cheshire CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-718 5 Cheshire CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2020-11-22   
203-718 6 Cheshire CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2015-05-10   
203-718 7 Cheshire CT NWLNCTCS6MD  508J CENTURYLINK COMMUNICATIONS, LLC 920   2014-09-29   
203-718 8 Cheshire CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-05-27   
203-718 9 Cheshire CT   145J TERRA NOVA TELECOM INC. 920   2025-04-28   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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