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: AUSTTXMCDS0

Remotes:

Switch Switch name Switch type
AUSTTXBCRS0  Bee Caves  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
512-233 4 Austin TX 9533 SOUTHWESTERN BELL 558   2001-08-13   
512-280 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-282 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-291 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-291 0 Austin TX 9533 SOUTHWESTERN BELL 558      
512-291 1 Austin TX 9533 SOUTHWESTERN BELL 558      
512-291 4 Austin TX 9533 SOUTHWESTERN BELL 558      
512-291 5 Austin TX 9533 SOUTHWESTERN BELL 558      
512-291 8 Austin TX 9533 SOUTHWESTERN BELL 558      
512-291 9 Austin TX 9533 SOUTHWESTERN BELL 558      
512-292 A Austin TX 9533 SOUTHWESTERN BELL 558      

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

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