Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: HGLDILXEDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
618-651 A Highland IL 1015 FRONTIER NORTH, INC. - IL 520      
618-651 0 Highland IL 1015 FRONTIER NORTH, INC. - IL 520      
618-651 1 Highland IL 1015 FRONTIER NORTH, INC. - IL 520      
618-651 2 Highland IL 1015 FRONTIER NORTH, INC. - IL 520      
618-651 3 Highland IL 1015 FRONTIER NORTH, INC. - IL 520      
618-651 8 Highland IL 1015 FRONTIER NORTH, INC. - IL 520      
618-651 9 Highland IL 1015 FRONTIER NORTH, INC. - IL 520      
618-654 A Highland IL 1015 FRONTIER NORTH, INC. - IL 520      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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