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.

Durango, CO

<< 1 2 3 4 5 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
970-422 1 DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2006-06-16   
970-422 2 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-09-19   
970-422 3 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2007-05-16   
970-422 4 DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-422 5 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-12   
970-422 6 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2014-12-12   
970-422 7 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2006-11-04   
970-422 8 GDJTCOFDPS1  383E BRESNAN BROADBAND OF COLORADO, LLC - CO [CHARTER] 656   2008-11-21   
970-422 9 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-12   
970-426 A DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-426 0 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2013-04-13   
970-426 1 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2007-05-24   
970-426 2 DNVRCOII4MD  5562 METROPCS, INC. 656   2006-08-14   
970-426 3 DNVRCOII4MD  5562 METROPCS, INC. 656   2016-06-02   
970-426 4 DURNCOMAG00  588A ZIPPYTECH INCORPORATED 656   2015-01-10   
970-426 5 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2013-05-25   
970-426 6 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2015-04-13   
970-426 7 DURNCOMADS0  9636 QWEST CORPORATION 656   2006-04-05   
970-426 8   6529 T-MOBILE USA, INC. 656      
970-426 9 DNVRCOII4MD  5562 METROPCS, INC. 656      
970-459 A DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-459 0 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2013-07-04   
970-459 1 DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-459 2 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-12   
970-459 3 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-12   
970-459 4 DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-459 5 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-12   
970-459 6 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2023-08-11   
970-459 7 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2013-12-18   
970-459 8 DURNCOMA7MD  5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656   2014-04-20   
970-459 9 DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2013-04-26   
970-501 A DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-501 0 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2021-05-15   
970-501 1 DNVRCOMA51Z  839J EON TELECOM, INC. 656   2023-06-25   
970-501 2 DNVRCO26XLX  939H COMMIO, LLC 656   2021-10-16   
970-501 3 DNVRCO26XLX  939H COMMIO, LLC 656   2021-10-16   
970-501 4 DNVRCO26XLX  939H COMMIO, LLC 656   2021-10-16   
970-501 5 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2021-11-07   
970-501 6 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2021-07-09   
970-501 7 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2021-07-09   
970-501 8 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2021-04-16   
970-501 9 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2021-04-16   
970-508 A DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-508 0 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2020-04-17   
970-508 1 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2020-12-12   
970-508 2 DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2020-03-06   
970-508 3 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2020-12-12   
970-508 4 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2021-11-07   
970-508 5 DNVRCOMA40Z  506J TWILIO INTERNATIONAL, INC. 656   2021-10-16   
970-508 6 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2022-02-14   

<< 1 2 3 4 5 >>

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.