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.

OCN: 7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
970-340 A Carbondale CO FTCLCOMAAMD  656      
970-340 6 Carbondale CO FTCLCOMAAMD  656   2013-01-14   
970-341 5 Olathe CO FTCLCOMAAMD  656   2021-07-23   
970-364 5 Granby CO FTCLCOMAAMD  656   2015-09-21   
970-372 3 Fort Collins CO DNVRCOMDDS0  656   2003-12-17   
970-406 9 Dillon CO FTCLCOMAAMD  656   2012-12-13   
970-408 A Johnstown-Milliken CO FTCLCOMAAMD  656      
970-408 6 Johnstown-Milliken CO FTCLCOMAAMD  656   2014-09-05   
970-439 7 Steamboat Springs CO FTCLCOMAAMD  656   2012-12-13   
970-452 4 Aspen CO FTCLCOMAAMD  656   2017-05-18   
970-458 6 Sterling CO FTCLCOMAAMD  656   2012-12-13   
970-509 6 Fraser CO FTCLCOMAAMD  656   2023-08-07   
970-516 6 Cortez CO FTCLCOMAAMD  656   2012-12-13   
970-541 A Loveland CO FTCLCOMAAMD  656      
970-541 6 Loveland CO FTCLCOMAAMD  656   2010-07-30   
970-545 5 Windsor CO FTCLCOMAAMD  656   2012-12-13   
970-546 6 Delta CO FTCLCOMAAMD  656   2019-02-18   
970-615 6 Montrose CO FTCLCOMAAMD  656   2012-12-13   
970-661 5 Bayfield CO FTCLCOMAAMD  656   2021-08-11   
970-666 2 Fort Collins CO FTCLCOMAAMD  656   2019-02-14   
970-671 9 Collbran CO FTCLCOMAAMD  656   2021-07-24   
970-687 0 Gypsum CO FTCLCOMAAMD  656   2022-11-14   
970-693 5 Meeker CO FTCLCOMAAMD  656   2017-10-12   
970-701 6 Craig CO FTCLCOMAAMD  656   2019-02-18   
970-705 6 Eagle CO FTCLCOMAAMD  656   2019-08-30   
970-707 6 Gunnison CO FTCLCOMAAMD  656   2013-10-25   
970-715 2 Mancos CO FTCLCOMAAMD  656   2020-11-17   
970-721 8 Mead CO FTCLCOMAAMD  656   2021-06-02   
970-725 5 Hot Sulphur Springs CO FTCLCOMAAMD  656   2012-12-13   
970-732 6 Fort Collins CO FTCLCOMAAMD  656   2021-10-04   
970-737 3 Gilcrest CO FTCLCOMAAMD  656   2015-10-02   
970-747 7 Fort Morgan CO FTCLCOMAAMD  656   2019-02-18   
970-827 3 Vail CO FTCLCOMAAMD  656   2020-11-02   
970-831 6 Brush CO FTCLCOMAAMD  656   2021-03-30   
970-839 6 Silt CO FTCLCOMAAMD  656   2022-08-08   
970-855 9 Edwards CO FTCLCOMAAMD  656   2021-02-22   
970-898 A Fort Collins CO DNVRCOMDDS0  656      
970-935 6 Breckenridge CO FTCLCOMAAMD  656   2023-08-04   
970-966 9 Loveland CO FTCLCOMAAMD  656   2020-01-23   
970-997 6 Kremmling CO FTCLCOMAAMD  656   2023-08-07   
983-201 A Denver CO FTCLCOMAAMD  656      
983-201 0 Denver CO FTCLCOMAAMD  656   2023-10-23   
983-201 1 Denver CO FTCLCOMAAMD  656   2023-10-23   
983-201 2 Denver CO FTCLCOMAAMD  656   2023-10-23   
983-201 3 Denver CO FTCLCOMAAMD  656   2023-10-23   
983-201 4 Denver CO FTCLCOMAAMD  656   2023-10-23   
983-201 5 Denver CO FTCLCOMAAMD  656   2023-10-23   
983-201 6 Denver CO FTCLCOMAAMD  656   2023-10-23   
983-201 7 Denver CO FTCLCOMAAMD  656   2023-10-23   
983-201 8 Denver CO FTCLCOMAAMD  656   2023-10-23   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.