Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: CLMDOH44X0X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
380-278 A Columbus OH 733J WIRETAP TELECOM, LLC. 324   2024-08-11   
380-278 3 Columbus OH 733J WIRETAP TELECOM, LLC. 324   2024-08-11   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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