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: AUSTTXHIDS0

Remotes:

Switch Switch name Switch type
AUSTTXEVRS2  AUSTIN  ORM 
AUSTTXGRRS0  AUSTIN  5PR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
512-326 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-373 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-383 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-416 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-424 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-428 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-432 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-433 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-434 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-435 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-436 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-437 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-438 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-440 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-441 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-442 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-443 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-444 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-445 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-447 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-448 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-460 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-462 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-464 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-486 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-487 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-693 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-704 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-707 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-712 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-730 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-804 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-851 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-912 A Austin TX 9533 SOUTHWESTERN BELL 558      
512-916 A Austin TX 9533 SOUTHWESTERN BELL 558      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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