Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 283 [Rate centres in NPA 283] [Dial plan for NPA 283]

NXX: 236

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
283-236 A Mason OH   6529 T-MOBILE USA, INC. 922   2025-10-04   
283-236 9 Mason OH   6529 T-MOBILE USA, INC. 922   2025-10-04   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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