Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 720 [Rate centres in NPA 720] [Dial plan for NPA 720]

NXX: 713

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-713 A Longmont CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-713 0 Longmont CO   6529 T-MOBILE USA, INC. 656   2020-06-28   
720-713 1 Longmont CO   026D ONVOY, LLC - CO 656   2019-12-12   
720-713 2 Longmont CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2019-10-15   
720-713 3 Longmont CO   026D ONVOY, LLC - CO 656   2019-12-12   
720-713 4 Longmont CO   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2022-09-24   
720-713 5 Longmont CO   508J CENTURYLINK COMMUNICATIONS, LLC 656   2020-05-30   
720-713 6 Longmont CO   026D ONVOY, LLC - CO 656   2020-04-24   
720-713 7 Longmont CO   026D ONVOY, LLC - CO 656   2019-10-14   
720-713 8 Longmont CO   6529 T-MOBILE USA, INC. 656   2020-06-28   
720-713 9 Longmont CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2020-02-07   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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