Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: MNDTILXADS0

Remotes:

Switch Switch name Switch type
CMTNILXARS0  COMPTON  GTR 
WBRKILXARL0  WEST BROOKLYN  GTL 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
815-538 A Mendota IL 1015 FRONTIER NORTH, INC. - IL 368      
815-539 A Mendota IL 1015 FRONTIER NORTH, INC. - IL 368      

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

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