Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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South Sidney, CO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
970-253 A SDNYNENWDS0  9631 QWEST CORPORATION 646      
970-253 0 SDNYNENWDS0  9631 QWEST CORPORATION 646      
970-253 1 SDNYNENWDS0  9631 QWEST CORPORATION 646      
970-253 2 GDISNENW6MD  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 646      
970-253 3 SDNYNENWDS0  9631 QWEST CORPORATION 646      
970-253 4 SDNYNENWDS0  9631 QWEST CORPORATION 646      
970-253 5 SDNYNENWDS0  9631 QWEST CORPORATION 646      
970-253 6 SDNYNENWDS0  9631 QWEST CORPORATION 646      
970-253 7 SDNYNENWDS0  9631 QWEST CORPORATION 646      
970-253 8 SDNYNENWDS0  9631 QWEST CORPORATION 646      
970-253 9 SDNYNENWDS0  9631 QWEST CORPORATION 646      
970-789 A GDISNENWUMD  508J CENTURYLINK COMMUNICATIONS, LLC 646      
970-789 0   883K AHOI LLC 646   2026-07-31   
970-789 7 GDISNENWUMD  508J CENTURYLINK COMMUNICATIONS, LLC 646   2015-03-16   
970-789 9 SCTSNEXUIMD  6010 NEW CINGULAR WIRELESS PCS, LLC 646   2021-11-18   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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