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: SNANTXDIXJX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-948 A San Antonio TX 515J IP HORIZON LLC 566      
210-948 1 San Antonio TX 515J IP HORIZON LLC 566   2020-11-19   
726-243 A San Antonio TX 515J IP HORIZON LLC 566   2024-04-29   
726-243 1 San Antonio TX 515J IP HORIZON LLC 566   2024-04-29   
726-249 A San Antonio TX 515J IP HORIZON LLC 566   2025-02-08   
726-249 1 San Antonio TX 515J IP HORIZON LLC 566   2025-02-08   
726-249 2 San Antonio TX 515J IP HORIZON LLC 566   2025-02-08   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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