Local Calling Guide

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NPA: 806 [Rate centres in NPA 806] [Dial plan for NPA 806]

NXX: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
806-421 A Dumas TX AMRLTXDRSMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 546      
806-421 0 Dumas TX AMRLTXDRSMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 546   2008-01-04   
806-421 1 Dumas TX DUMSTXXA6MD  6529 T-MOBILE USA, INC. 546   2010-05-01   
806-421 2 Dumas TX AMRLTXDRSMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 546   2011-04-09   
806-421 3 Dumas TX AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2016-10-01   
806-421 4 Dumas TX AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546   2019-01-19   
806-421 5 Dumas TX AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546   2020-05-05   
806-421 6 Dumas TX AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2009-01-19   
806-421 7 Dumas TX AMRLTXDRWMD  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 546   2013-04-11   
806-421 8 Dumas TX AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2008-05-15   
806-421 9 Dumas TX AMRLTX02XBY  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 546   2008-05-15   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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