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: 720 [Rate centres in NPA 720] [Dial plan for NPA 720]

NXX: 307

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-307 A Allens Park-Lyons CO DNVRCOMAXYZ  7421 AT&T - LOCAL 656      
720-307 0 Allens Park-Lyons CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-14   
720-307 1 Allens Park-Lyons CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-14   
720-307 2 Allens Park-Lyons CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-14   
720-307 3 Allens Park-Lyons CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2013-04-14   
720-307 4 Allens Park-Lyons CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2013-05-06   
720-307 5 Allens Park-Lyons CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-04-14   
720-307 6 Allens Park-Lyons CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-06-23   
720-307 7 Allens Park-Lyons CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-06-23   
720-307 8 Allens Park-Lyons CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-08-31   
720-307 9 Allens Park-Lyons CO DNVRCOMAXYZ  7421 AT&T - LOCAL 656   2012-09-27   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.