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: 287

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
220-287 A Portsmouth OH   793K TWC IP ENABLED SERVICES, LLC 324   2025-12-14   
220-287 0 Portsmouth OH   793K TWC IP ENABLED SERVICES, LLC 324   2025-12-14   
220-287 1 Portsmouth OH   793K TWC IP ENABLED SERVICES, LLC 324   2025-12-14   
220-287 2 Portsmouth OH   793K TWC IP ENABLED SERVICES, LLC 324   2025-12-14   
220-287 3 Portsmouth OH   793K TWC IP ENABLED SERVICES, LLC 324   2025-12-14   
220-287 4 Portsmouth OH   793K TWC IP ENABLED SERVICES, LLC 324   2025-12-14   
220-287 5 Portsmouth OH   793K TWC IP ENABLED SERVICES, LLC 324   2025-12-14   
220-287 6 Portsmouth OH   793K TWC IP ENABLED SERVICES, LLC 324   2025-12-14   
220-287 7 Portsmouth OH   793K TWC IP ENABLED SERVICES, LLC 324   2025-12-14   
220-287 8 Portsmouth OH   793K TWC IP ENABLED SERVICES, LLC 324   2025-12-14   
220-287 9 Portsmouth OH   793K TWC IP ENABLED SERVICES, LLC 324   2025-12-14   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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