Local Calling Guide

Area code/prefix search

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

NXX: 983

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-983 A Greenwich CT   829J PAETEC ITEL, LLC 132      
203-983 0 Greenwich CT   350E YMAX COMMUNICATIONS CORP. - CT 132   2009-09-15   
203-983 1 Greenwich CT   9104 VERIZON NEW YORK, INC. 132   2008-10-10   
203-983 2 Greenwich CT   9104 VERIZON NEW YORK, INC. 132   2008-10-10   
203-983 3 Greenwich CT   829J PAETEC ITEL, LLC 132   2005-12-05   
203-983 4 Greenwich CT   4950 CABLEVISION LIGHTPATH, INC. - CT 132   2007-04-03   
203-983 5 Greenwich CT   829J PAETEC ITEL, LLC 132   2003-07-31   
203-983 6 Greenwich CT   829J PAETEC ITEL, LLC 132      
203-983 7 Greenwich CT   829J PAETEC ITEL, LLC 132   2005-02-12   
203-983 8 Greenwich CT   350E YMAX COMMUNICATIONS CORP. - CT 132   2008-07-05   
203-983 9 Greenwich CT   350E YMAX COMMUNICATIONS CORP. - CT 132   2008-12-16   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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