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: 487

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-487 A Longmont CO DNVRCO26XIX  073H TELNYX LLC 656      
720-487 0 Longmont CO   6529 T-MOBILE USA, INC. 656   2017-03-27   
720-487 1 Longmont CO   073H TELNYX LLC 656   2017-01-30   
720-487 2 Longmont CO   6529 T-MOBILE USA, INC. 656   2017-03-27   
720-487 3 Longmont CO   6529 T-MOBILE USA, INC. 656   2017-03-27   
720-487 4 Longmont CO   6529 T-MOBILE USA, INC. 656   2017-03-27   
720-487 5 Longmont CO   6529 T-MOBILE USA, INC. 656   2017-03-27   
720-487 6 Longmont CO   6529 T-MOBILE USA, INC. 656   2017-03-27   
720-487 7 Longmont CO   6529 T-MOBILE USA, INC. 656   2017-03-27   
720-487 8 Longmont CO   6529 T-MOBILE USA, INC. 656   2017-03-27   
720-487 9 Longmont CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2017-05-28   

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

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