Local Calling Guide

Area code/prefix search

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

NXX: 206

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
983-206 A Fort Lupton CO PGSPCO290MD  0051 SHELCOMM 656   2024-10-27   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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