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: 570

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-570 A Denver CO DNVRCOSODS0  9636 QWEST CORPORATION 656      
720-570 0 Denver CO DNVRCOSODS0  9636 QWEST CORPORATION 656      
720-570 1 Denver CO DNVRCOSODS0  9636 QWEST CORPORATION 656      
720-570 2 Denver CO DNVRCOSODS0  9636 QWEST CORPORATION 656      
720-570 3 Denver CO DNVRCOSODS0  9636 QWEST CORPORATION 656      
720-570 4 Denver CO DNVRCOSODS0  9636 QWEST CORPORATION 656      
720-570 5 Denver CO DNVRCOSODS0  9636 QWEST CORPORATION 656      
720-570 6 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-05-18   
720-570 7 Denver CO DNVRCOSODS0  9636 QWEST CORPORATION 656      
720-570 8 Denver CO DNVRCOSODS0  9636 QWEST CORPORATION 656      
720-570 9 Denver CO DNVRCOSODS0  9636 QWEST CORPORATION 656      

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

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