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: MCALTX935MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-396 5 Falcon Heights TX 073H TELNYX LLC 568   2022-03-25   
956-406 8 Harlingen TX 073H TELNYX LLC 568   2022-06-19   
956-476 0 Rio Grande City TX 073H TELNYX LLC 568   2022-04-30   
956-675 8 Lyford TX 073H TELNYX LLC 568   2022-05-02   
956-676 0 Brownsville TX 073H TELNYX LLC 568   2022-07-01   
956-690 8 Raymondville TX 073H TELNYX LLC 568   2022-03-25   
956-695 A San Benito TX 073H TELNYX LLC 568      
956-695 0 San Benito TX 073H TELNYX LLC 568   2021-06-28   
956-779 0 Sullivan City TX 073H TELNYX LLC 568   2022-06-06   

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

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