Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 970 [Rate centres in NPA 970] [Dial plan for NPA 970]

NXX: 740

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-740 A Sterling CO STNGCOMADS0  9636 QWEST CORPORATION 656      
970-740 0 Sterling CO   5562 METROPCS, INC. 656   2023-03-12   
970-740 1 Sterling CO   515J IP HORIZON LLC 656   2022-04-29   
970-740 2 Sterling CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-12-07   
970-740 3 Sterling CO   9636 QWEST CORPORATION 656   2020-06-14   
970-740 4 Sterling CO   9636 QWEST CORPORATION 656   2020-06-14   
970-740 5 Sterling CO   9636 QWEST CORPORATION 656   2020-06-14   
970-740 6 Sterling CO   026D ONVOY, LLC - CO 656   2021-03-07   
970-740 7 Sterling CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2022-11-30   
970-740 8 Sterling CO   026D ONVOY, LLC - CO 656   2021-03-07   
970-740 9 Sterling CO   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2021-09-30   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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