Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: OKTWINXBRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
812-513 A Oaktown IN 0779 FRONTIER NORTH, INC. - IN 338      
812-745 A Oaktown IN 0779 FRONTIER NORTH, INC. - IN 338      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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