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: HSKLOKXAPS0

Remotes:

Switch Switch name Switch type
BYTNOKXBRL0  BOYNTON  GTR 
BYTNOKXBRP0  BOYNTON  RP 
HSKLOKXARP0  HASKELL  GTR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
539-221 A Haskell OK 1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 538      
539-221 9 Haskell OK 1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 538   2018-01-27   

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

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