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: SNANTXEW0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-424 A San Antonio TX 829J PAETEC ITEL, LLC 566   2025-01-23   
210-538 A San Antonio TX 829J PAETEC ITEL, LLC 566   2025-01-23   
210-580 A San Antonio TX 829J PAETEC ITEL, LLC 566   2025-01-23   
210-721 A San Antonio TX 829J PAETEC ITEL, LLC 566      
210-743 A San Antonio TX 829J PAETEC ITEL, LLC 566   2025-01-23   
210-901 A San Antonio TX 829J PAETEC ITEL, LLC 566   2025-01-23   
726-226 A San Antonio TX 829J PAETEC ITEL, LLC 566   2025-01-23   
726-444 A San Antonio TX 829J PAETEC ITEL, LLC 566   2025-01-23   
956-531 A Laredo TX 829J PAETEC ITEL, LLC 566   2025-01-23   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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