Local Calling Guide

Area code/prefix search

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

NXX: 233

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
983-233 A Denver CO DNVTCO56BMD  597F VOIP INNOVATIONS, LLC 656   2026-07-10   
983-233 0 Denver CO DNVTCO56BMD  597F VOIP INNOVATIONS, LLC 656   2026-07-10   
983-233 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-07-13   
983-233 2 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-07-13   
983-233 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-07-13   
983-233 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-08-10   
983-233 5 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-08-10   
983-233 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-09-10   
983-233 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-09-10   
983-233 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-09-10   
983-233 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-10-16   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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