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: CRCHTXFBDS0

Remotes:

Switch Switch name Switch type
BNVDTXBNRS0  Benavides  RSC 
BRUNTXBRRS0  Bruni  1RC 
CRCHTXBURS0  Butler  RSC 
CRCHTXPDRS0  Padre Island  RSC 
FRERTXFRRS0  Freer  1RL 
HBVLTXHBRS0  Hebbronville  RSC 
SINTTXSIRS0  Sinton  RSC 
SNDGTXSDRS0  San Diego  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
361-937 A Flour Bluff TX 9533 SOUTHWESTERN BELL 564      
361-939 A Flour Bluff TX 9533 SOUTHWESTERN BELL 564      
361-961 A Flour Bluff TX 9533 SOUTHWESTERN BELL 564      
361-967 A Flour Bluff TX 9533 SOUTHWESTERN BELL 564      

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

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