Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 220 [Rate centres in NPA 220] [Dial plan for NPA 220]

NXX: 292

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
220-292 A Portsmouth OH PTMOOHXAX0X  464C ONVOY, LLC - OH 324   2026-04-19   
220-292 0 Portsmouth OH PTMOOHXAX0X  464C ONVOY, LLC - OH 324   2026-04-19   
220-292 1 Portsmouth OH PTMOOHXAX0X  464C ONVOY, LLC - OH 324   2026-05-31   
220-292 8 Portsmouth OH PTMOOHXAX0X  464C ONVOY, LLC - OH 324   2026-05-31   
220-292 9 Portsmouth OH CMBROHXBAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2026-07-18   

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

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