Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 392F KALEVA TELEPHONE COMPANY - MI

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
231-508 A Onekama MI TRCYMIMNLMD  348      
231-508 0 Onekama MI   348   2008-07-25   
231-887 6 Manistee MI   348   2008-06-29   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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