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: SALNKSTADS0

Remotes:

Switch Switch name Switch type
ELWOKSNORL0  ELLSWORTH  RSC 
GYPSKSOWRL0  GYPSUM  RSC 
LNBGKSLIRL0  LINDSBORG  RSC 
LNCLKSLIRL0  LINCOLN  RSC 
MPLSKS02RL0  MINNEAPOLIS  RSC 
MRQTKSKIRL0  MARQUETTE  RSC 
SLMNKSOLRS0  SOLOMON  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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