diff --git a/Layout/default/Voicenumber/Form.php b/Layout/default/Voicenumber/Form.php
index 1d2e94ac7..ed90b52e4 100644
--- a/Layout/default/Voicenumber/Form.php
+++ b/Layout/default/Voicenumber/Form.php
@@ -117,6 +117,7 @@
                         <option></option>
                         <option value="ported_out" <?=($number->disabled_reason == "ported_out") ? "selected='selected'" : ""?>>Zu neuem Provider portiert</option>
                         <option value="ported_back" <?=($number->disabled_reason == "ported_back") ? "selected='selected'" : ""?>>Zum Anker zurückportiert</option>
+                        <option value="contract_cancelled" <?=($number->disabled_reason == "contract_cancelled") ? "selected='selected'" : ""?>>Vertrag gekündigt</option>
                         <option value="reserved" <?=($number->disabled_reason == "reserved") ? "selected='selected'" : ""?>>Reserviert</option>
                         <option value="legacy" <?=($number->disabled_reason == "legacy") ? "selected='selected'" : ""?>>Legacy</option>
                         <option value="damaged" <?=($number->disabled_reason == "damaged") ? "selected='selected'" : ""?>>Kaputt</option>
diff --git a/Layout/default/Voicenumberblock/include/block-detail.php b/Layout/default/Voicenumberblock/include/block-detail.php
index 61594e0c9..d9fa9ff16 100644
--- a/Layout/default/Voicenumberblock/include/block-detail.php
+++ b/Layout/default/Voicenumberblock/include/block-detail.php
@@ -42,7 +42,7 @@
             Lokal
           <?php endif; ?>
         </td>
-        <td><?=$num->disabled_reason?></td>
+        <td><?=$num->disabled_reason?><?=($num->disabled > 1) ? " (<i>".date("d.m.Y H:i", $num->disabled)."</i>)" : ""?></td>
         <td><?=($num->id && $num->enable_on_date) ? date("d.m.Y", $num->enable_on_date) : ""?></td>
         <td>
           <a href="<?=self::getUrl("Voicenumber", "edit", ["block_id" => $block->id, "number" => $number])?>"><i class="fas fa-edit"></i></a>
diff --git a/application/Voicenumber/VoicenumberController.php b/application/Voicenumber/VoicenumberController.php
index 1e192288c..22ec7d427 100644
--- a/application/Voicenumber/VoicenumberController.php
+++ b/application/Voicenumber/VoicenumberController.php
@@ -114,8 +114,11 @@ class VoicenumberController extends mfBaseController {
       $number_data['port_out_date'] = self::dateToTimestamp($r->port_out_date);
     }
 
-    if($r->disabled === "1") {
-      $number_data['disabled'] = 1;
+    if($r->disabled == "1") {
+      if(!$number->disabled) {
+        $number_data['disabled'] = date('U');
+        $number_data['disabled_by'] = $this->me->id;
+      }
       switch($r->disabled_reason) {
         case "ported_out":
           $number_data['disabled_reason'] = "ported_out";
@@ -123,6 +126,9 @@ class VoicenumberController extends mfBaseController {
         case "ported_back":
           $number_data['disabled_reason'] = "ported_back";
           break;
+        case "contract_cancelled":
+          $number_data['disabled_reason'] = "contract_cancelled";
+          break;
         case "legacy":
           $number_data['disabled_reason'] = "legacy";
           break;
diff --git a/application/Voicenumber/VoicenumberModel.php b/application/Voicenumber/VoicenumberModel.php
index 28da70fb8..33fc4d1f0 100644
--- a/application/Voicenumber/VoicenumberModel.php
+++ b/application/Voicenumber/VoicenumberModel.php
@@ -17,6 +17,7 @@ class VoicenumberModel {
   public $ported_out;
   public $disabled;
   public $disabled_reason;
+  public $disabled_by;
   public $enable_on_date;
   public $comment;
   
diff --git a/db/migrations/20260115165426_voicenumber_add_disable_reason_canceled.php b/db/migrations/20260115165426_voicenumber_add_disable_reason_canceled.php
new file mode 100644
index 000000000..f6e7381d7
--- /dev/null
+++ b/db/migrations/20260115165426_voicenumber_add_disable_reason_canceled.php
@@ -0,0 +1,33 @@
+<?php
+declare(strict_types=1);
+
+use Phinx\Migration\AbstractMigration;
+
+final class VoicenumberAddDisableReasonCanceled extends AbstractMigration
+{
+    public function up(): void
+    {
+        if($this->getEnvironment() == "thetool") {
+            $table = $this->table("Voicenumber");
+            $table->changeColumn("disabled", "integer", ["null" => false, "default" => 0]);
+            $table->changeColumn("disabled_reason", "enum", ["values" => "ported_out,ported_back,reserved,legacy,damaged,contract_cancelled", "null" => true, "default" => null]);
+            $table->addColumn("disabled_by", "integer", ["null" => true, "default" => null, "after" => "disabled_reason"]);
+            $table->update();
+        }
+        
+        if($this->getEnvironment() == "addressdb") {
+          
+        }
+    }
+
+    public function down(): void
+    {
+        if($this->getEnvironment() == "thetool") {
+
+        }
+        
+        if($this->getEnvironment() == "addressdb") {
+          
+        }
+    }
+}