Local Calling Guide

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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX: 998

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-998 A Stamford CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-998 0 Stamford CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2007-05-01   
203-998 1 Stamford CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2012-01-01   
203-998 2 Stamford CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-07-01   
203-998 3 Stamford CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-07-01   
203-998 4 Stamford CT   4950 CABLEVISION LIGHTPATH, INC. - CT 920   2013-12-22   
203-998 5 Stamford CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-06-30   
203-998 6 Stamford CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-06-30   
203-998 7 Stamford CT   612K CSC VOICE, LLC 920   2013-08-09   
203-998 8 Stamford CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2008-02-04   
203-998 9 Stamford CT   539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-04   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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