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: CRCTTXXADS1

Remotes:

Switch Switch name Switch type
ATONTXXARP0  AUSTONIO  C15 
ATONTXXARS0  AUSTONIO  RLC 
CRCTTXXARP0  CROCKETT  RP 
KNRDTXXARP0  KENNARD  RP 
KNRDTXXARS0  KENNARD  RLC 
LOLDTXXARP0  LOVELADY  RP 
LOLDTXXARS0  LOVELADY  RSC 
PNTNTXXARP0  PENNINGTON  RP 
PNTNTXXARS0  PENNINGTON  RLC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
936-544 A Crockett TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 560      
936-545 A Crockett TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 560      
936-546 A Crockett TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 560      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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