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: CLJTIAXODS0

Remotes:

Switch Switch name Switch type
CNSVIAXORS7  CONESVILLE  DLM 
GDVWIAXORS0  GRANDVIEW  1RC 
LTTSIAXORS7  LETTS  1RC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
319-728 A Columbus Junction IA 1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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