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: 930

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-930 A Greenwich CT NYCMNYZRX9X  3493 GLOBAL CROSSING LOCAL SERVICES, INC. - CT 132      
203-930 0 Greenwich CT NYCMNY83D1S  350E YMAX COMMUNICATIONS CORP. - CT 132   2010-10-26   
203-930 1 Greenwich CT NYCMNY83DSZ  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 132   2010-05-07   
203-930 2 Greenwich CT NYCMNY83DSZ  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 132      
203-930 3 Greenwich CT NYCMNY83DSZ  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 132      
203-930 4 Greenwich CT NYCMNY37TMD  624H ONVOY SPECTRUM, LLC 132   2021-11-08   
203-930 5 Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132      
203-930 6 Greenwich CT NYCMNY83D1S  350E YMAX COMMUNICATIONS CORP. - CT 132   2009-02-06   
203-930 7 Greenwich CT NYCMNY83DS0  7316 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 132   2008-10-15   
203-930 8 Greenwich CT NYCMNY83D1S  350E YMAX COMMUNICATIONS CORP. - CT 132   2008-06-01   
203-930 9 Greenwich CT NYCMNYZRX9X  3493 GLOBAL CROSSING LOCAL SERVICES, INC. - CT 132      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.