diff --git a/db/migrations/20240207085822_add_voice_plan_index.php b/db/migrations/20240207085822_add_voice_plan_index.php
new file mode 100644
index 000000000..2bcef74ee
--- /dev/null
+++ b/db/migrations/20240207085822_add_voice_plan_index.php
@@ -0,0 +1,31 @@
+<?php
+declare(strict_types=1);
+
+use Phinx\Migration\AbstractMigration;
+
+final class AddVoicePlanIndex extends AbstractMigration
+{
+    public function up(): void
+    {
+        if($this->getEnvironment() == "thetool") {
+            $this->execute("ALTER TABLE `Voiceplanzone` ADD INDEX `voiceplan_id` (`voiceplan_id`);");
+            $this->execute("ALTER TABLE `Voiceplandestination` ADD INDEX `voiceplanzone_id` (`voiceplanzone_id`);");
+        }
+        
+        if($this->getEnvironment() == "addressdb") {
+          
+        }
+    }
+
+    public function down(): void
+    {
+        if($this->getEnvironment() == "thetool") {
+            $this->execute("ALTER TABLE `Voiceplanzone` DROP INDEX `voiceplan_id`;");
+            $this->execute("ALTER TABLE `Voiceplandestination` DROP INDEX `voiceplanzone_id`;");
+        }
+        
+        if($this->getEnvironment() == "addressdb") {
+          
+        }
+    }
+}