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: 330 [Rate centres in NPA 330] [Dial plan for NPA 330]

NXX: 523

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
330-523 A Richfield OH RCFDOHXARS0  0666 WINDSTREAM WESTERN RESERVE, INC. 320      
330-523 0 Richfield OH GAHGOHBTCM0  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 320   2004-05-16   
330-523 1 Richfield OH RCFDOHXARS0  0666 WINDSTREAM WESTERN RESERVE, INC. 320      
330-523 2 Richfield OH RCFDOHXARS0  0666 WINDSTREAM WESTERN RESERVE, INC. 320      
330-523 3 Richfield OH RCFDOHXARS0  0666 WINDSTREAM WESTERN RESERVE, INC. 320   2003-05-12   
330-523 4 Richfield OH RCFDOHXARS0  0666 WINDSTREAM WESTERN RESERVE, INC. 320   2009-12-13   
330-523 5 Richfield OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320   2006-04-08   
330-523 6 Richfield OH GAHGOHBTCM0  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 320   2010-06-03   
330-523 7 Richfield OH NRFDOHXACMD  547D TIME WARNER CABLE INFORMATION SVCS (OHIO) - OH 320   2007-06-21   
330-523 8 Richfield OH GAHGOHBTCM0  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 320   2008-08-02   
330-523 9 Richfield OH GAHGOHBTCM0  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 320   2006-12-01   

Last updated: Fri, 10 Sep 2021 12:38:21 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.