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.
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Switch: HSTZTXXZ3MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
936-657 8 Center TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2013-08-29   
936-657 9 Center TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-06-19   
936-679 9 San Augustine TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-08-14   
936-715 7 Nacogdoches TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-02-11   
936-715 8 Nacogdoches TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-10-04   
936-800 6 Nacogdoches TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-04-04   
936-800 7 Nacogdoches TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-04-04   
936-800 8 Nacogdoches TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-04-04   
936-810 4 Timpson TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2023-03-25   
936-810 7 Timpson TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2023-03-25   
936-810 9 Timpson TX 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2023-03-25   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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