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: CUBANMXCDS0

Remotes:

Switch Switch name Switch type
GLLNNMXCRS1  GALLINA  RSC 
JMSPNMXCRS1  JEMEZ SPRINGS  RSC 
LNDRNMXCRS1  LINDRITH  RSC 
LYBKNMXCRS1  LYBROOK  DCL 
SNYSNMXCRS1  SAN YSIDRO  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
575-289 A Cuba NM 1193 VALOR TELECOM TX,LP-NM #2 DBA WINDSTREAM COMM SW 664      

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

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