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: TPTNIAXODS0

Remotes:

Switch Switch name Switch type
ATLSIAXORS0  ATALISSA  1RC 
BNNTIAXORS0  BENNETT  1RC 
DRNTIAXORS0  DURANT  RSC 
LWDNIAXORS0  LOWDEN  1RC 
MSCWIAXORS0  MOSCOW  1RC 
ROCHIAXORS0  ROCHESTER  1RC 
STWDIAXORS0  STANWOOD  1RC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
563-886 A Tipton IA 1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 634      

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

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