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: 319 [Rate centres in NPA 319] [Dial plan for NPA 319]

NXX: 984

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-984 A Denver IA DNVRIACORS1  9631 QWEST CORPORATION 635      
319-984 0 Denver IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2016-04-11   
319-984 1 Denver IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2016-04-11   
319-984 2 Denver IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2021-03-14   
319-984 3 Denver IA CDRRIADTX2X  508J CENTURYLINK COMMUNICATIONS, LLC 635   2017-06-09   
319-984 4 Denver IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2013-04-04   
319-984 5 Denver IA DNVRIACORS1  9631 QWEST CORPORATION 635      
319-984 6 Denver IA DNVRIACORS1  9631 QWEST CORPORATION 635      
319-984 7 Denver IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2010-12-01   
319-984 8 Denver IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2011-12-10   
319-984 9 Denver IA DNVRIACORS1  9631 QWEST CORPORATION 635      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.