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: WLBGIAXODS0

Remotes:

Switch Switch name Switch type
CNRYIAXORS0  CONROY  1RC 
OXFRIAXPRS0  OXFORD  RS 
SOLNIAXORS0  SOLON  RS 
TFFNIAXORS0  TIFFIN  RS 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
319-668 A Williamsburg IA 1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 635      

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

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