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.

Gypsum, CO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
970-431 A DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-431 0 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-04-16   
970-431 1 DNVRCO03DS1  5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656   2017-04-09   
970-431 2 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-431 3 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-431 4 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-431 5 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-431 6 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-431 7 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2007-09-04   
970-431 8 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2011-04-03   
970-431 9 HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-11-05   
970-524 A GYPSCOXCRS1  2185 CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK 656      
970-687 A DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
970-687 0 FTCLCOMAAMD  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2022-11-14   
970-687 1 DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2020-03-15   
970-687 2 DNVRCOMA40Z  506J TWILIO INTERNATIONAL, INC. 656   2020-12-18   
970-687 3 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2019-05-01   
970-687 4 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2021-03-07   
970-687 5 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2021-03-07   
970-687 6 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2019-09-09   
970-687 7 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2019-09-09   
970-687 8 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2020-10-30   
970-777 A GYPSCO03DS0  4164 SAN ISABEL TELECOM, INC. - CO 656      
970-853 A DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-853 7 DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2023-04-18   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.