Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 330B FASTTRACK COMMUNICATIONS, INC. - CO

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
720-537 A Denver CO DURNCOBSDS0  656      
720-537 3 Denver CO DURNCOBSDS0  656   2014-12-18   
970-200 1 Grand Junction CO DURNCOBSDS0  656   2019-09-22   
970-208 9 Grand Junction CO DURNCOBSDS0  656   2006-06-05   
970-341 A Olathe CO DURNCOBSDS0  656      
970-341 6 Olathe CO DURNCOBSDS0  656   2014-02-23   
970-369 2 Telluride CO DURNCOBSDS0  656   2008-04-21   
970-387 3 Silverton CO DURNCOBSDS0  656   2008-07-05   
970-399 A Delta CO DURNCOBSDS0  656      
970-399 4 Delta CO DURNCOBSDS0  656   2008-04-21   
970-442 6 Ignacio CO DURNCOBSDS0  656   2013-06-23   
970-444 A Bayfield CO DURNCOBSDS0  656      
970-444 0 Bayfield CO DURNCOBSDS0  656   2006-06-05   
970-478 4 Norwood CO DURNCOBSDS0  656   2011-12-05   
970-497 5 Montrose CO DURNCOBSDS0  656   2006-06-05   
970-510 4 Carbondale CO DURNCOBSDS0  656   2010-06-03   
970-529 2 Cortez CO DURNCOBSDS0  656   2006-06-05   
970-533 5 Mancos CO DURNCOBSDS0  656   2008-05-24   
970-585 A Pagosa Springs CO DURNCOBSDS0  656      
970-585 0 Pagosa Springs CO DURNCOBSDS0  656      
970-585 1 Pagosa Springs CO DURNCOBSDS0  656      
970-585 2 Pagosa Springs CO DURNCOBSDS0  656      
970-585 3 Pagosa Springs CO DURNCOBSDS0  656      
970-633 7 Ouray CO DURNCOBSDS0  656   2014-04-27   
970-639 3 Fruita CO DURNCOBSDS0  656   2008-07-05   
970-648 7 Gunnison CO DURNCOBSDS0  656   2012-03-08   
970-676 5 Dolores CO DURNCOBSDS0  656   2015-06-18   
970-693 6 Meeker CO DURNCOBSDS0  656   2015-07-16   
970-714 7 Greeley CO DURNCOBSDS0  656   2015-01-02   
970-826 8 Craig CO DURNCOBSDS0  656   2011-12-05   
970-828 A Durango CO DURNCOBSDS0  656      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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