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: ENWDCO69CM2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
303-641 A Denver CO 6664 SPRINT SPECTRUM L.P. 656      
720-317 A Denver CO 6664 SPRINT SPECTRUM L.P. 656      
720-839 A Denver CO 6664 SPRINT SPECTRUM L.P. 656      
720-841 A Denver CO 6664 SPRINT SPECTRUM L.P. 656      
970-201 A Grand Junction CO 6664 SPRINT SPECTRUM L.P. 656      
970-213 A Fort Collins CO 6664 SPRINT SPECTRUM L.P. 656      
970-258 A Montrose CO 6664 SPRINT SPECTRUM L.P. 656      
970-281 A Fraser CO 6664 SPRINT SPECTRUM L.P. 656      
970-291 A Steamboat Springs CO 6664 SPRINT SPECTRUM L.P. 656      
970-331 A Vail CO 6664 SPRINT SPECTRUM L.P. 656      
970-333 A Dillon CO 6664 SPRINT SPECTRUM L.P. 656      
970-391 A Fort Collins CO 6664 SPRINT SPECTRUM L.P. 656      
970-417 A Montrose CO 6664 SPRINT SPECTRUM L.P. 656      
970-426 A Durango CO 6664 SPRINT SPECTRUM L.P. 656      
970-430 A Fort Collins CO 6664 SPRINT SPECTRUM L.P. 656      
970-470 A Vail CO 6664 SPRINT SPECTRUM L.P. 656      
970-518 A Greeley CO 6664 SPRINT SPECTRUM L.P. 656      
970-575 A Fraser CO 6664 SPRINT SPECTRUM L.P. 656      
970-576 A Greeley CO 6664 SPRINT SPECTRUM L.P. 656      
970-582 A Pagosa Springs CO 6664 SPRINT SPECTRUM L.P. 656      
970-631 A Fort Collins CO 6664 SPRINT SPECTRUM L.P. 656      
970-689 A Fort Collins CO 6664 SPRINT SPECTRUM L.P. 656      
970-701 A Craig CO 6664 SPRINT SPECTRUM L.P. 656      
970-710 A Aspen CO 6664 SPRINT SPECTRUM L.P. 656      
970-978 A Greeley CO 6664 SPRINT SPECTRUM L.P. 656      
970-980 A Fort Collins CO 6664 SPRINT SPECTRUM L.P. 656      
970-988 A Fort Collins CO 6664 SPRINT SPECTRUM L.P. 656      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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