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: 743

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-743 A Longmont CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-743 0 Longmont CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2020-11-20   
720-743 1 Longmont CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2020-11-20   
720-743 2 Longmont CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2020-11-20   
720-743 3 Longmont CO   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2020-12-14   
720-743 4 Longmont CO   026D ONVOY, LLC - CO 656   2020-12-03   
720-743 5 Longmont CO   026D ONVOY, LLC - CO 656   2020-12-03   
720-743 6 Longmont CO   026D ONVOY, LLC - CO 656   2020-12-03   
720-743 7 Longmont CO   026D ONVOY, LLC - CO 656   2020-12-03   
720-743 8 Longmont CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-09-21   
720-743 9 Longmont CO   073H TELNYX LLC 656   2021-01-04   

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

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