Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 983 [Rate centres in NPA 983] [Dial plan for NPA 983]

NXX: 227

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
983-227 A Fort Lupton CO DNVRCO26XHY  883K AHOI LLC 656   2026-01-09   
983-227 0 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2026-01-12   
983-227 1 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2026-05-31   
983-227 4 Fort Lupton CO   883K AHOI LLC 656   2026-01-09   
983-227 8 Fort Lupton CO   026D ONVOY, LLC - CO 656   2026-08-01   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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