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: HSTNTXJAX6Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-508 A Dickinson TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-515 A Baytown TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-739 A Baytown TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-263 A Baytown TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-602 A Baytown TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-671 A Baytown TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
409-218 A Hitchcock-Santa Fe TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
409-270 A Hitchcock-Santa Fe TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
409-312 A Hitchcock-Santa Fe TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-221 A Dickinson TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-315 A Dickinson TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-572 A Baytown TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-784 A Baytown TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      

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

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