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: 910 [Rate centres in NPA 910] [Dial plan for NPA 910]

NXX: 623

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
910-623 A Castle Hayne NC   793K TWC IP ENABLED SERVICES, LLC 428      
910-623 0 Castle Hayne NC WLMGNC030MD  998E BANDWIDTH.COM CLEC, LLC - NC 428   2008-11-22   
910-623 1 Castle Hayne NC   793K TWC IP ENABLED SERVICES, LLC 428   2013-03-22   
910-623 2 Castle Hayne NC WLMGNCFOXBZ  829J PAETEC ITEL, LLC 428   2010-01-04   
910-623 3 Castle Hayne NC WLMGNCFOXRY  511C SOUTH CAROLINA NET, INC. - NC 428   2014-12-26   
910-623 4 Castle Hayne NC   793K TWC IP ENABLED SERVICES, LLC 428   2006-11-21   
910-623 5 Castle Hayne NC WLMGNCATXDX  516C AT&T CORP. 428   2012-12-03   
910-623 6 Castle Hayne NC WLMGNCFOXNX  8389 TELEPORT COMMUNICATIONS AMERICA, LLC - NC 428   2014-09-05   
910-623 7 Castle Hayne NC WLMGNCFOXIY  508J CENTURYLINK COMMUNICATIONS, LLC 428   2014-06-12   
910-623 8 Castle Hayne NC WLMGNC030MD  998E BANDWIDTH.COM CLEC, LLC - NC 428   2015-09-26   
910-623 9 Castle Hayne NC WLMGNC03DS4  350F PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 428   2016-01-24   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.