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: SRBLTXXARS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
915-369 A Sierra Blanca TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 542      
915-369 0 Sierra Blanca TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 542      
915-369 1 Sierra Blanca TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 542      
915-369 2 Sierra Blanca TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 542      
915-369 3 Sierra Blanca TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 542      
915-369 4 Sierra Blanca TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 542      
915-369 7 Sierra Blanca TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 542      
915-369 8 Sierra Blanca TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 542      
915-369 9 Sierra Blanca TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 542      

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.