Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: DNDSILXERS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
618-754 A Dundas IL 1036 FRONTIER NORTH, INC. - IL 978      
618-754 3 Dundas IL 1036 FRONTIER NORTH, INC. - IL 978      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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