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.

Dumas, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
806-399 A DUMSTXXAPS0  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 546      
806-399 0 DUMSTXXAPS0  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 546      
806-399 1 DUMSTXXADS2  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 546      
806-399 2 DUMSTXXADS2  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 546      
806-399 3 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546   2020-04-25   
806-399 4 DUMSTXXADS2  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 546      
806-399 5 DUMSTXXADS2  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 546      
806-399 6 DUMSTXXADS2  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 546      
806-399 7 DUMSTXXADS2  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 546      
806-399 8 DUMSTXXADS2  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 546      
806-399 9 DUMSTXXADS2  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 546      
806-421 A AMRLTXDRSMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 546      
806-421 0 AMRLTXDRSMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 546   2008-01-04   
806-421 1 DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546   2010-05-01   
806-421 2 AMRLTXDRSMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 546   2011-04-09   
806-421 3 AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2016-10-01   
806-421 4 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546   2019-01-19   
806-421 5 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546   2020-05-05   
806-421 6 AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2009-01-19   
806-421 7 AMRLTXDRWMD  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 546   2013-04-11   
806-421 8 AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2008-05-15   
806-421 9 AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2008-05-15   
806-710 A AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546      
806-710 0 AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2020-05-23   
806-710 1 DLHRTXALDS1  7893 XIT TELECOMMUNICATIONS & TECHNOLOGY, INC. - TX 546   2021-09-04   
806-710 7 AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2024-12-04   
806-717 A DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546      
806-717 0 AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2006-10-12   
806-717 1 DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546   2006-08-30   
806-717 2 AMRLTXDRSMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 546   2007-02-22   
806-717 3 AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2007-05-04   
806-717 4 AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2014-06-08   
806-717 5 AMRLTX02X4Y  508J CENTURYLINK COMMUNICATIONS, LLC 546   2017-03-18   
806-717 6 DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546   2007-10-20   
806-717 7 DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546   2007-05-26   
806-717 8 DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546   2006-01-31   
806-717 9 DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546   2005-01-03   
806-751 A DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546      
806-751 0 DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546   2021-08-15   
806-751 1 DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546   2021-08-15   
806-751 2 DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546   2021-08-15   
806-751 6 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546   2024-10-26   
806-751 7 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546   2024-10-26   
806-751 8 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546   2024-10-26   
806-751 9 DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546   2021-08-15   
806-922 A AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      
806-922 0 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546   2020-04-25   
806-922 1 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      
806-922 2 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      
806-922 3 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      
806-922 4 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      
806-922 5 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      
806-922 6 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      
806-922 7 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      
806-922 8 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      
806-922 9 AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546   2018-10-11   
806-930 A AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546      
806-934 A DUMSTXXADS2  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 546      
806-935 A DUMSTXXADS2  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 546      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.