Local Calling Guide

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NPA: 283 [Rate centres in NPA 283] [Dial plan for NPA 283]

NXX: 237

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
283-237 A Cincinnati OH CNCNOHAMAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2025-10-17   
283-237 0 Cincinnati OH CNCNOHAMAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2025-10-25   
283-237 1 Cincinnati OH CNCNOHAMAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2025-10-25   
283-237 2 Cincinnati OH CNCNOHWSXAZ  321J HD CARRIER LLC 922   2026-07-18   
283-237 3 Cincinnati OH CNCNOHWSXAZ  321J HD CARRIER LLC 922   2026-07-18   
283-237 5 Cincinnati OH CNCNOHWSXXX  7532 TELEPORT COMMUNICATIONS AMERICA, LLC - OH 922   2025-10-27   
283-237 6 Cincinnati OH CNCNOHAMAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2025-10-17   
283-237 7 Cincinnati OH CNCNOHAMAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2025-10-17   
283-237 8 Cincinnati OH CNCNOHAMAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2025-10-17   
283-237 9 Cincinnati OH CNCNOHAMAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2025-10-17   

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

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