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: FRSYMTXCDS0

Remotes:

Switch Switch name Switch type
ALZDMTXCRS1  ALZADA  1RC 
ASLDMTXCRS1  ASHLAND  1RE 
BRDSMTXBRS2  BROADUS  RS 
BRDSMTXCRS1  NORTH BROADUS  1RC 
BRNYMTXCRS1  BIRNEY  1RE 
BSBYMTXCRS1  BUSBY  1RC 
HYSHMTXCRS1  HYSHAM  1RE 
LMDRMTXCRS1  LAME DEER  RSC 
MLCYMTXCRS1  SOUTH MILES CITY  1RC 
RSBDMTXCRS1  ROSEBUD  1RC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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