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: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-900 A Greenwich CT WHPLNYWPXZX  4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-900 0 Greenwich CT NYCMNYZRDBS  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 132      
203-900 1 Greenwich CT WHPLNYWPXZX  4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-900 2 Greenwich CT NYCMNY83DSZ  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 132      
203-900 3 Greenwich CT NYCMNY83DSZ  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 132      
203-900 4 Greenwich CT WHPLNYWPXOY  199F BANDWIDTH.COM CLEC, LLC - CT 132      
203-900 5 Greenwich CT GNWCCTGNX5Y  4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-900 6 Greenwich CT WHPLNY02DS5  7140 TC SYSTEMS, INC. - NY 132      
203-900 7 Greenwich CT WHPLNYWPXOY  199F BANDWIDTH.COM CLEC, LLC - CT 132      
203-900 8 Greenwich CT NYCMNYZRDBS  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 132      
203-900 9 Greenwich CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 132      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.