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.

Switch: DNVTCOZIDS1

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
720-743 7 Longmont CO 026D ONVOY, LLC - CO 656   2020-12-03   
720-744 3 Denver CO 026D ONVOY, LLC - CO 656   2013-04-14   
720-745 5 Longmont CO 026D ONVOY, LLC - CO 656   2015-08-07   
720-745 6 Longmont CO 026D ONVOY, LLC - CO 656   2015-08-07   
720-753 3 Fort Lupton CO 026D ONVOY, LLC - CO 656   2016-03-14   
720-753 4 Fort Lupton CO 026D ONVOY, LLC - CO 656   2016-03-14   
720-759 2 Longmont CO 026D ONVOY, LLC - CO 656   2017-05-19   
720-759 3 Longmont CO 026D ONVOY, LLC - CO 656   2017-05-19   
720-763 8 Denver CO 026D ONVOY, LLC - CO 656   2010-03-12   
720-764 A Hudson CO 026D ONVOY, LLC - CO 656      
720-764 2 Hudson CO 026D ONVOY, LLC - CO 656   2021-03-07   
720-764 3 Hudson CO 026D ONVOY, LLC - CO 656   2021-03-07   
720-764 5 Hudson CO 026D ONVOY, LLC - CO 656   2020-12-19   
720-764 6 Hudson CO 026D ONVOY, LLC - CO 656   2020-12-19   
720-764 7 Hudson CO 026D ONVOY, LLC - CO 656   2020-12-19   
720-770 2 Deckers CO 026D ONVOY, LLC - CO 656   2016-03-03   
720-770 3 Deckers CO 026D ONVOY, LLC - CO 656   2016-08-24   
720-770 4 Deckers CO 026D ONVOY, LLC - CO 656   2016-03-03   
720-770 5 Deckers CO 026D ONVOY, LLC - CO 656   2014-12-10   
720-770 7 Deckers CO 026D ONVOY, LLC - CO 656   2014-11-25   
720-770 9 Deckers CO 026D ONVOY, LLC - CO 656   2014-12-10   
720-773 6 Denver CO 026D ONVOY, LLC - CO 656   2015-03-27   
720-774 6 Denver CO 026D ONVOY, LLC - CO 656   2016-05-05   
720-776 5 Deckers CO 026D ONVOY, LLC - CO 656   2020-04-24   
720-776 6 Deckers CO 026D ONVOY, LLC - CO 656   2020-04-24   
720-776 8 Deckers CO 026D ONVOY, LLC - CO 656   2019-06-25   
720-778 2 Denver CO 026D ONVOY, LLC - CO 656   2014-12-02   
720-778 3 Denver CO 026D ONVOY, LLC - CO 656   2014-12-02   
720-778 8 Denver CO 026D ONVOY, LLC - CO 656   2015-08-03   
720-778 9 Denver CO 026D ONVOY, LLC - CO 656   2015-08-03   
720-780 A Denver CO 026D ONVOY, LLC - CO 656      
720-780 0 Denver CO 026D ONVOY, LLC - CO 656   2020-01-16   
720-780 1 Denver CO 026D ONVOY, LLC - CO 656   2020-01-16   
720-780 2 Denver CO 026D ONVOY, LLC - CO 656   2020-01-16   
720-780 3 Denver CO 026D ONVOY, LLC - CO 656   2020-01-16   
720-780 4 Denver CO 026D ONVOY, LLC - CO 656   2020-01-16   
720-780 5 Denver CO 026D ONVOY, LLC - CO 656   2020-01-16   
720-780 6 Denver CO 026D ONVOY, LLC - CO 656   2020-01-16   
720-780 7 Denver CO 026D ONVOY, LLC - CO 656   2020-01-16   
720-780 8 Denver CO 026D ONVOY, LLC - CO 656   2020-01-16   
720-780 9 Denver CO 026D ONVOY, LLC - CO 656   2020-01-16   
720-782 0 Hudson CO 026D ONVOY, LLC - CO 656   2020-09-13   
720-782 1 Hudson CO 026D ONVOY, LLC - CO 656   2020-09-13   
720-782 2 Hudson CO 026D ONVOY, LLC - CO 656   2020-02-22   
720-782 3 Hudson CO 026D ONVOY, LLC - CO 656   2020-04-24   
720-782 4 Hudson CO 026D ONVOY, LLC - CO 656   2020-04-24   
720-782 5 Hudson CO 026D ONVOY, LLC - CO 656   2020-09-10   
720-782 6 Hudson CO 026D ONVOY, LLC - CO 656   2020-09-10   
720-782 7 Hudson CO 026D ONVOY, LLC - CO 656   2019-12-12   
720-782 8 Hudson CO 026D ONVOY, LLC - CO 656   2020-09-13   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 >>

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.