diff --git a/application/migrations/163_dxcc_index.php b/application/migrations/163_dxcc_index.php
new file mode 100644
index 00000000..7b456be7
--- /dev/null
+++ b/application/migrations/163_dxcc_index.php
@@ -0,0 +1,16 @@
+<?php
+
+defined('BASEPATH') OR exit('No direct script access allowed');
+
+class Migration_dxcc_index extends CI_Migration {
+
+	public function up() {
+		$this->db->query("ALTER TABLE `dxcc_prefixes` ADD INDEX `idx_dxcc_prefixes_logic` (`call`, `start`, `end`)");
+		$this->db->query("ALTER TABLE `dxcc_exceptions` ADD INDEX `idx_dxcc_exceptions_logic` (`call`, `start`, `end`)");
+	}
+
+	public function down(){
+		$this->db->query("ALTER TABLE dxcc_prefixes DROP INDEX idx_dxcc_prefixes_logic");
+		$this->db->query("ALTER TABLE dxcc_exceptions DROP INDEX idx_dxcc_eceptions_logic");
+	}
+}