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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: MLFRILXADS0

Remotes:

Switch Switch name Switch type
CSPKILXARS0  CISSNA PARK  RSS 
STLDILXARS1  STOCKLAND  1RC 
WDLDILXARS0  WOODLAND  1RC 
WGTNILXARS0  WELLINGTON  1RC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
815-889 A Milford IL 1000 FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL 358      
815-889 4 Milford IL 1000 FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL 358      
815-889 5 Milford IL 1000 FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL 358      
815-889 9 Milford IL 1000 FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL 358      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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