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: 303 [Rate centres in NPA 303] [Dial plan for NPA 303]

NXX: 647

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-647 A Deckers CO DCKRCOMARS1  9636 QWEST CORPORATION 656      
303-647 0 Deckers CO   9636 QWEST CORPORATION 656      
303-647 1 Deckers CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2006-08-22   
303-647 2 Deckers CO   9636 QWEST CORPORATION 656      
303-647 3 Deckers CO   073H TELNYX LLC 656   2017-04-01   
303-647 4 Deckers CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2011-11-25   
303-647 5 Deckers CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2004-11-11   
303-647 6 Deckers CO   026D ONVOY, LLC CO 656   2006-02-19   
303-647 7 Deckers CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2004-06-01   
303-647 8 Deckers CO   320E YMAX COMMUNICATIONS CORP. - CO 656   2011-03-25   
303-647 9 Deckers CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2011-04-23   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.