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: CLDNTXXAPS0

Remotes:

Switch Switch name Switch type
CLDNTXXARP0  CLARENDON  DLM 
GROMTXXARP0  GROOM  RP 
GROMTXXARS0  GROOM  1RE 
HDLYTXXARP0  HEDLEY  RP 
HDLYTXXARS0  HEDLEY  RLC 
MIAMTXXARP0  MIAMI  RP 
MIAMTXXARS0  MIAMI  1RE 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
806-461 A Clarendon TX 1163 VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW 546      
806-461 9 Clarendon TX 1163 VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW 546   2015-08-28   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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