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: HSTGTX052MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
346-458 9 Beach City TX 073H TELNYX LLC 560   2022-04-02   
346-472 A Baytown TX 073H TELNYX LLC 560      
346-472 0 Baytown TX 073H TELNYX LLC 560   2021-07-31   
346-474 1 Friendswood TX 073H TELNYX LLC 560   2022-04-02   
346-480 9 Crosby TX 073H TELNYX LLC 560   2022-04-23   
346-484 8 Sheldon TX 073H TELNYX LLC 560   2022-04-02   
346-519 2 Channelview TX 073H TELNYX LLC 560   2022-03-25   
346-523 0 Kemah TX 073H TELNYX LLC 560   2022-02-12   
346-540 0 Splendora TX 073H TELNYX LLC 560   2022-07-01   
979-608 0 Bellville TX 073H TELNYX LLC 560   2022-07-01   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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