Local Calling Guide

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NPA: 983 [Rate centres in NPA 983] [Dial plan for NPA 983]

NXX: 983

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
983-983 A Longmont CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656      
983-983 0 Longmont CO   839J EON TELECOM, INC. 656   2023-06-03   
983-983 1 Longmont CO   732J NUSO, LLC 656   2023-12-28   
983-983 2 Longmont CO   732J NUSO, LLC 656   2023-12-28   
983-983 3 Longmont CO   624H ONVOY SPECTRUM, LLC 656   2023-06-02   
983-983 4 Longmont CO   624H ONVOY SPECTRUM, LLC 656   2023-06-02   
983-983 5 Longmont CO   624H ONVOY SPECTRUM, LLC 656   2023-06-02   
983-983 6 Longmont CO   026D ONVOY, LLC - CO 656   2024-04-04   
983-983 7 Longmont CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2023-09-08   
983-983 8 Longmont CO   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2023-09-08   
983-983 9 Longmont CO   616J LEAP TELECOM, LLC 656   2023-06-05   

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

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