Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
303-607 8 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656      
303-636 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656      
303-645 3 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-04-17   
303-830 4 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-08-06   
308-365 7 North Julesburg NE 508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-03-16   
720-239 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-08-05   
720-345 5 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2008-06-30   
720-356 4 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-08-05   
720-414 7 Allens Park-Lyons CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-05-22   
720-453 1 Longmont CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-01-19   
720-463 6 Deckers CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-05-23   
720-510 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-08-05   
720-531 0 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-10-03   
720-531 1 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-10-09   
720-531 6 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-10-09   
720-531 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-10-09   
720-531 8 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-10-09   
720-531 9 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-10-09   
720-571 6 Allens Park-Lyons CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2018-03-19   
720-580 7 Keenesburg CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-05-23   
720-586 6 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-07-25   
720-586 8 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-07-25   
720-598 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-05-22   
720-613 7 Hudson CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-05-23   
720-619 7 Georgetown CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-05-23   
720-622 4 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656      
720-664 1 Allens Park-Lyons CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2020-04-16   
720-676 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-07-23   
720-683 7 Fort Lupton CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-05-23   
720-697 A Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656      
720-697 5 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-12-09   
720-697 6 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-12-09   
720-697 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-12-09   
720-707 4 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-05-23   
720-709 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-07-13   
720-713 5 Longmont CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2020-05-30   
720-717 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-05-23   
720-722 A Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656      
720-722 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2010-06-30   
720-728 6 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-03-08   
720-728 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-03-08   
720-745 7 Longmont CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-06-10   
720-751 2 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2020-03-10   
720-758 A Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656      
720-758 6 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-02-10   
720-758 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-02-10   
720-758 8 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-02-10   
720-778 5 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-07-01   
720-795 A Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656      
720-795 7 Denver CO 508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-08-12   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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