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: 730

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-730 A Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-730 0 Denver CO DNVRCOII4MD  5562 METROPCS, INC. 656   2018-10-21   
720-730 1 Denver CO DNVRCOII4MD  5562 METROPCS, INC. 656   2018-10-21   
720-730 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-10-20   
720-730 3 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-10-20   
720-730 4 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-10-20   
720-730 5 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-10-20   
720-730 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-10-20   
720-730 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-10-20   
720-730 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-10-20   
720-730 9 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-10-20   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.