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: GLPTMS55DS0

Remotes:

Switch Switch name Switch type
BTRGLAEWDSN  BATON ROUGE  DS 
GNVLMSMARS0  GREENVILLE  RS 
JCSNMS60DS0  JACKSON  DS 
LKCHLAWNDSN  LAKE CHARLES  DS 
MONRLA11DSN  MONROE  DS 
MRDNMSIFRS0  MERIDIAN  RS 
NWORLA23DS2  NEW ORLEANS  DS 
PSCHMSMARS6  PASS CHRISTIAN  RS 
SCTTLAAFDSN  SCOTT  DMT 
SHPTLA12DSN  SHREVEPORT  DS 
STGBLAMARS2  ST GABRIEL  RS 
TUPLMSMARS0  TUPELO  RS 
ZCHRLAMARS2  ZACHARY  RS 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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