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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Estelline, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
806-505 A AMRLTX02X4Y  508J CENTURYLINK COMMUNICATIONS, LLC 546      
806-505 7 AMRLTX02X4Y  508J CENTURYLINK COMMUNICATIONS, LLC 546   2017-12-23   
806-888 A ESTLTXXAW01  1163 VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW 546      
806-899 A AMRLTX98DS4  0132 AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX 546      

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

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