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: CLRDIAXTPS0

Remotes:

Switch Switch name Switch type
BRVLIAXORL0  BRADDYVILLE  GTR 
BRVLIAXORP0  BRADDYVILLE  RP 
CLRDIAXTRP0  CLARINDA  GTR 
CLSPIAXORL0  COLLEGE SPRINGS  GTR 
CLSPIAXORP0  COLLEGE SPRINGS  RP 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
712-695 A Clarinda IA 1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 644      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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