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: 242

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-242 A Huntington CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-242 0 Huntington CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-242 1 Huntington CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-242 2 Huntington CT   145J TERRA NOVA TELECOM INC. 920      
203-242 3 Huntington CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-242 4 Huntington CT HRFRCT03XSX  516J TON80 COMMUNICATIONS, LLC 920      
203-242 5 Huntington CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-242 6 Huntington CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-242 7 Huntington CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920      
203-242 8 Huntington CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
203-242 9 Huntington CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.