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: SXCYIADTDS0

Remotes:

Switch Switch name Switch type
ANTHIACORS3  ANTHON  AXR 
CCVLIACORS3  CORRECTIONVILLE  AXR 
DNBRIACORS8  DANBURY  AXR 
HOMRNENWRS1  HOMER  AXR 
MPTNIACORS8  MAPLETON  AXR 
MRRLIACORS9  MERRILL  AXR 
ONAWIACORS4  ONAWA  AXR 
SHLNIATCRS3  SHELDON  AXR 
WHNGIACORS4  WHITING  AXR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date

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

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