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

NXX: 489

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-489 A Greenwich CT GNWCCTGNX5X  4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-489 0 Greenwich CT NYCMNYZRDBS  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 132   2011-12-10   
203-489 1 Greenwich CT NYCMNYBXYMD  3083 PAETEC COMMUNICATIONS, LLC - CT 132   2012-02-09   
203-489 2 Greenwich CT WHPLNYWPXOY  199F BANDWIDTH.COM CLEC, LLC - CT 132   2012-04-20   
203-489 3 Greenwich CT WHPLNYWPAMD  4950 CABLEVISION LIGHTPATH, INC. - CT 132   2011-07-22   
203-489 4 Greenwich CT GNWCCTGNX5X  4950 CABLEVISION LIGHTPATH, INC. - CT 132   2012-04-27   
203-489 5 Greenwich CT WHPLNYWPXOY  199F BANDWIDTH.COM CLEC, LLC - CT 132   2012-08-11   
203-489 6 Greenwich CT WHPLNYWPXOY  199F BANDWIDTH.COM CLEC, LLC - CT 132   2014-04-19   
203-489 7 Greenwich CT NYCMNYZRYMD  508J CENTURYLINK COMMUNICATIONS, LLC 132   2014-04-28   
203-489 8 Greenwich CT NYCMNYZRDBS  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 132   2012-04-09   
203-489 9 Greenwich CT NYCMNYZRDBS  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 132   2012-04-27   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.