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: DNVRCOMAXGZ

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
303-219 0 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
303-335 0 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2009-09-28   
303-335 9 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2009-09-28   
303-351 1 Deckers CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
303-351 2 Deckers CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-02-19   
303-536 1 Hudson CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-08-15   
303-536 7 Hudson CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-04-14   
303-578 0 Keenesburg CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-02-19   
303-578 2 Keenesburg CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-16   
303-578 4 Keenesburg CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-08-12   
303-578 6 Keenesburg CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-08-12   
303-578 8 Keenesburg CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-08-12   
303-578 9 Keenesburg CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
303-630 9 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-25   
303-656 9 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2009-09-28   
303-710 8 Fort Lupton CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2019-07-07   
303-720 6 Fort Lupton CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
303-720 7 Fort Lupton CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-08-14   
303-736 9 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2009-09-28   
303-747 5 Allens Park-Lyons CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2006-02-05   
303-816 8 Deckers CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-03   
303-834 7 Longmont CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
303-867 7 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2005-12-26   
303-900 0 Georgetown CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-02-19   
303-900 2 Georgetown CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
303-900 3 Georgetown CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-15   
303-900 5 Georgetown CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-05-24   
303-900 7 Georgetown CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-06-12   
303-900 8 Georgetown CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-08-13   
308-365 A North Julesburg NE 995E BANDWIDTH.COM CLEC, LLC - NE 656      
308-365 0 North Julesburg NE 995E BANDWIDTH.COM CLEC, LLC - NE 656   2015-03-13   
720-204 8 Longmont CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-03-19   
720-213 5 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-05-30   
720-213 6 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
720-213 8 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
720-230 3 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-03   
720-230 6 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-10-30   
720-235 8 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
720-239 2 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
720-248 0 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-03   
720-248 7 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-02-20   
720-248 8 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-02-20   
720-248 9 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-03   
720-254 1 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
720-255 1 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
720-257 9 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
720-258 6 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
720-260 4 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
720-263 0 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-02-19   
720-263 1 Denver CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-02-19   

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 >>

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.