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: 747 [Rate centres in NPA 747] [Dial plan for NPA 747]

NXX: 223

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
747-223 A Burbank: Sun Valley DA CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730      
747-223 0 Burbank: Sun Valley DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2019-03-03   
747-223 1 Burbank: Sun Valley DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2019-03-03   
747-223 2 Burbank: Sun Valley DA CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2013-08-22   
747-223 3 Burbank: Sun Valley DA CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2018-10-20   
747-223 4 Burbank: Sun Valley DA CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2013-06-14   
747-223 5 Burbank: Sun Valley DA CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2018-07-14   
747-223 6 Burbank: Sun Valley DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2014-10-15   
747-223 7 Burbank: Sun Valley DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2013-09-22   
747-223 8 Burbank: Sun Valley DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2014-09-13   
747-223 9 Burbank: Sun Valley DA CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-04-29   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.