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
720-750 6 Denver CO 318J COMCAST IP PHONE, LLC 656   2019-03-15   
720-750 7 Denver CO 318J COMCAST IP PHONE, LLC 656   2019-03-15   
720-750 8 Denver CO 318J COMCAST IP PHONE, LLC 656   2019-03-15   
720-753 6 Fort Lupton CO 318J COMCAST IP PHONE, LLC 656   2018-05-26   
720-756 1 Denver CO 318J COMCAST IP PHONE, LLC 656   2021-01-24   
720-756 2 Denver CO 318J COMCAST IP PHONE, LLC 656   2021-01-24   
720-756 3 Denver CO 318J COMCAST IP PHONE, LLC 656   2021-01-24   
720-756 7 Denver CO 318J COMCAST IP PHONE, LLC 656   2021-01-24   
720-760 5 Denver CO 318J COMCAST IP PHONE, LLC 656   2021-01-29   
720-760 8 Denver CO 318J COMCAST IP PHONE, LLC 656   2021-01-29   
720-761 5 Denver CO 318J COMCAST IP PHONE, LLC 656   2023-10-21   
720-762 4 Denver CO 318J COMCAST IP PHONE, LLC 656   2020-04-21   
720-762 5 Denver CO 318J COMCAST IP PHONE, LLC 656   2020-04-21   
720-769 1 Denver CO 318J COMCAST IP PHONE, LLC 656   2020-11-02   
720-769 2 Denver CO 318J COMCAST IP PHONE, LLC 656   2020-11-02   
720-769 3 Denver CO 318J COMCAST IP PHONE, LLC 656   2020-11-02   
720-769 4 Denver CO 318J COMCAST IP PHONE, LLC 656   2020-11-02   
720-769 5 Denver CO 318J COMCAST IP PHONE, LLC 656   2020-11-02   
720-769 6 Denver CO 318J COMCAST IP PHONE, LLC 656   2020-11-02   
720-769 8 Denver CO 318J COMCAST IP PHONE, LLC 656   2020-11-02   
720-787 4 Denver CO 318J COMCAST IP PHONE, LLC 656   2017-01-02   
720-787 7 Denver CO 318J COMCAST IP PHONE, LLC 656   2016-12-02   
720-787 9 Denver CO 318J COMCAST IP PHONE, LLC 656   2017-01-02   
720-815 A Longmont CO 318J COMCAST IP PHONE, LLC 656      
720-815 1 Longmont CO 318J COMCAST IP PHONE, LLC 656   2017-10-23   
720-817 A Strasburg CO 318J COMCAST IP PHONE, LLC 656      
720-817 1 Strasburg CO 318J COMCAST IP PHONE, LLC 656   2021-11-15   
720-826 A Denver CO 318J COMCAST IP PHONE, LLC 656      
720-826 1 Denver CO 318J COMCAST IP PHONE, LLC 656   2019-09-13   
720-826 2 Denver CO 318J COMCAST IP PHONE, LLC 656   2019-09-13   
720-826 3 Denver CO 318J COMCAST IP PHONE, LLC 656   2019-09-13   
720-845 1 Denver CO 318J COMCAST IP PHONE, LLC 656   2017-10-15   
720-845 2 Denver CO 318J COMCAST IP PHONE, LLC 656   2017-10-15   
720-845 3 Denver CO 318J COMCAST IP PHONE, LLC 656   2017-10-15   
720-845 4 Denver CO 318J COMCAST IP PHONE, LLC 656   2017-10-15   
720-863 8 Denver CO 318J COMCAST IP PHONE, LLC 656   2011-10-21   
720-866 8 Denver CO 318J COMCAST IP PHONE, LLC 656   2019-05-02   
720-866 9 Denver CO 318J COMCAST IP PHONE, LLC 656   2019-05-02   
720-900 3 Denver CO 318J COMCAST IP PHONE, LLC 656   2014-12-01   
720-906 A Byers CO 318J COMCAST IP PHONE, LLC 656      
720-906 1 Byers CO 318J COMCAST IP PHONE, LLC 656   2022-01-17   
720-920 9 Denver CO 318J COMCAST IP PHONE, LLC 656      
720-923 5 Denver CO 318J COMCAST IP PHONE, LLC 656   2018-10-18   
720-923 6 Denver CO 318J COMCAST IP PHONE, LLC 656   2018-10-18   
720-923 7 Denver CO 318J COMCAST IP PHONE, LLC 656   2018-10-18   
720-925 A Denver CO 318J COMCAST IP PHONE, LLC 656      
720-925 5 Denver CO 318J COMCAST IP PHONE, LLC 656   2016-02-01   
720-928 4 Fort Lupton CO 318J COMCAST IP PHONE, LLC 656   2018-11-02   
720-928 7 Fort Lupton CO 318J COMCAST IP PHONE, LLC 656   2019-05-17   
720-949 0 Denver CO 318J COMCAST IP PHONE, LLC 656      

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

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