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: SNANTXCAY4X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
726-231 A San Antonio TX 732J NUSO, LLC 566      
726-231 1 San Antonio TX 732J NUSO, LLC 566   2023-04-09   
726-762 1 San Antonio TX 732J NUSO, LLC 566   2024-08-07   
726-762 2 San Antonio TX 732J NUSO, LLC 566   2024-08-07   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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