diff --git a/Layout/default/Voicenumberblock/Form.php b/Layout/default/Voicenumberblock/Form.php
index 98fbf1180..7aed72bab 100644
--- a/Layout/default/Voicenumberblock/Form.php
+++ b/Layout/default/Voicenumberblock/Form.php
@@ -55,7 +55,7 @@
                   <div class="form-group row">
                     <label class="col-lg-2 col-form-label" for="first">Erste Nummer *</label>
                     <div class="col-lg-10">
-                      <input type="text" class="form-control" name="first" id="first" value="<?=$block->getFirst()?>" />
+                      <input type="text" class="form-control" name="first" id="first" value="<?=($block->id) ? $block->getFirst() : ""?>" />
                       <small>4080010</small>
                     </div>
                   </div>
@@ -63,7 +63,7 @@
                   <div class="form-group row">
                     <label class="col-lg-2 col-form-label" for="last">Letzte Nummer *</label>
                     <div class="col-lg-10">
-                      <input type="text" class="form-control" name="last" id="last" value="<?=$block->getLast()?>" />
+                      <input type="text" class="form-control" name="last" id="last" value="<?=($block->id) ? $block->getLast() : ""?>" />
                       <small>4080099</small>
                     </div>
                   </div>
diff --git a/Layout/default/Voicenumberblock/Index.php b/Layout/default/Voicenumberblock/Index.php
index 3a9a834ad..95fbdfd62 100644
--- a/Layout/default/Voicenumberblock/Index.php
+++ b/Layout/default/Voicenumberblock/Index.php
@@ -123,19 +123,25 @@
                 <th></th>
               </tr>
               <?php foreach($blocks as $block): ?>
-              <tr>
-                <td><?=$block->name?></td>
-                <td><?=$block->countrycode?></td>
-                <td><?=$block->areacode?></td>
-                <td><?=$block->base?></td>
-                <td><?=$block->getFirst()?></td>
-                <td><?=$block->getLast()?></td>
-                <td><?=$block->comment?></td>
+              <tr class="building-list-tr" id="block-<?=$block->id?>">
+                <td onclick="toggleBlock(<?=$block->id?>)"><?=$block->name?></td>
+                <td onclick="toggleBlock(<?=$block->id?>)"><?=$block->countrycode?></td>
+                <td onclick="toggleBlock(<?=$block->id?>)"><?=$block->areacode?></td>
+                <td onclick="toggleBlock(<?=$block->id?>)"><?=$block->base?></td>
+                <td onclick="toggleBlock(<?=$block->id?>)"><?=$block->getFirst()?></td>
+                <td onclick="toggleBlock(<?=$block->id?>)"><?=$block->getLast()?></td>
+                <td onclick="toggleBlock(<?=$block->id?>)"><?=$block->comment?></td>
                 <td style="text-align: left; letter-spacing: 4px; font-size: 1.1em;">
                   <a href="<?=self::getUrl("Voicenumberblock", "edit", ["id" => $block->id])?>"><i class="far fa-edit"  title="Bearbeiten"></i></a>
                   <a href="<?=self::getUrl("Voicenumberblock", "delete", ["id" => $block->id])?>" onclick="if(!confirm('Rufnummernblock wirklich löschen?')) return false;" class="text-danger" title="Löschen"><i class="fas fa-trash"></i></a>
                 </td>
               </tr>
+              <tr id="block-detail-<?=$block->id?>" style="display:none; background-color:#fff">
+                <td colspan="8">
+                  <?php include(realpath(dirname(__FILE__)."/include")."/block-detail.php"); ?>
+                </td>
+              </tr>
+              <tr style="display:none;"></tr>
               <?php endforeach; ?>
             </table>
             
@@ -175,4 +181,16 @@
       </div>
     </div>
 
+<script type="text/javascript">
+  function toggleBlock(id) {
+    $('#block-detail-' + id).toggle();
+    if($('#block-detail-' + id).is(":hidden")) {
+      $('#block-' + id).removeClass("table-info");
+      $('#block-' + id).removeClass("text-info");
+    } else {
+      $('#block-' + id).addClass("text-info");
+      $('#block-' + id).addClass("table-info");
+    }
+  }
+</script>
 <?php include(realpath(dirname(__FILE__)."/../")."/footer.php"); ?>
\ No newline at end of file
diff --git a/Layout/default/Voicenumberblock/include/block-detail.php b/Layout/default/Voicenumberblock/include/block-detail.php
new file mode 100644
index 000000000..4fe596fab
--- /dev/null
+++ b/Layout/default/Voicenumberblock/include/block-detail.php
@@ -0,0 +1,44 @@
+<?php
+/** @var Voicenumberblock $block */
+?>
+<div class="card">
+  <div class="card-body">
+    <h4 class="header-title">Rufnummern <?=$block->countrycode?><?=$block->areacode?><?=$block->getFirst()?> - <?=$block->countrycode?><?=$block->areacode?><?=$block->getLast()?></h4>
+    <table class="table table-striped table-sm">
+      <tr>
+        <th>Nummer</th>
+        <th>Aktiv</th>
+        <th>Routing</th>
+        <th>Portierungsstatus</th>
+        <th>Sperre</th>
+        <th>Entsperrung</th>
+      </tr>
+      <?php $i = 0; foreach(range($block->getFirst(), $block->getLast()) as $number): ?>
+      <?php $num = null; $num = VoicenumberModel::getFirst(['voicenumberblock_id' => $block_id, 'number' => ($block->number_prepend_zero) ? "0$number" : $number]) ?>
+      <tr>
+        <td><?=$block->countrycode?> <?=$block->areacode?> <?=($block->number_prepend_zero) ? "0" : ""?><?=$number?></td>
+        <td>
+          <?php if($num->active): ?>
+          <span class="text-success"><i class="fas fa-check"></i></span>
+          <small class="text-monospace">(seit <?=($num->id) ? date("d.m.Y H:i:s", $num->activated_date) : ""?>)</small>
+          <?php else: ?>
+          <span class="text-danger"><i class="fas fa-times"></i></span>
+          <?php endif; ?>
+        </td>
+        <td><?=$num->routing?></td>
+        <td>
+          <?php if($num->ported_out): ?>
+            Exportiert
+            <small class="text-monospace">(<?=($num->id) ? date("d.m.Y H:i:s", $num->port_out_date) : ""?>)</small>
+          <?php else: ?> 
+            Lokal
+          <?php endif; ?>
+        </td>
+        <td><?=$num->disabled_reason?></td>
+        <td><?=($num->id && $num->enable_on_date) ? date("d.m.Y", $num->enable_on_date) : ""?></td>
+      </tr>
+      <?php $i++; if($i >= 100) break; ?>
+      <?php endforeach; ?>
+    </table>
+  </div>
+</div>
\ No newline at end of file
diff --git a/application/Voicenumber/VoicenumberModel.php b/application/Voicenumber/VoicenumberModel.php
index ea37db5ec..9dbf7d846 100644
--- a/application/Voicenumber/VoicenumberModel.php
+++ b/application/Voicenumber/VoicenumberModel.php
@@ -52,10 +52,11 @@ class VoicenumberModel {
     
   }
   
-  public static function getFirst() {
+  public static function getFirst($filter = null) {
     $db = FronkDB::singleton();
     
     $where = self::getSqlFilter($filter);
+    mfLoghandler::singleton()->debug($where);
     $res = $db->select("Voicenumber", "*", "$where ORDER BY voicenumberblock_id, number");
     if($db->num_rows($res)) {
       $data = $db->fetch_object($res);
@@ -137,41 +138,6 @@ class VoicenumberModel {
       }
     }
     
-    if(array_key_exists("first", $filter)) {
-      $add_zero = false;
-      $first = $filter['first'];
-      
-      mfLoghandler::singleton()->debug($first);
-      
-      if(substr($first,0, 1) === "0") {
-        $add_zero = true;
-        $first = substr($first, 1);
-      }
-      
-      if(is_numeric($first)) {
-        $where .= " AND first like '%$first%'";
-        if($add_zero) {
-          $where .= " AND number_prepend_zero = 1";
-        }
-      }
-    }
-    
-    if(array_key_exists("last", $filter)) {
-      $add_zero = false;
-      $last = $filter['last'];
-      
-      mfLoghandler::singleton()->debug($last);
-      
-      if(substr($last,0, 1) === "0") {
-        $add_zero = true;
-        $last = substr($last, 1);
-      }
-      
-      if(is_numeric($last)) {
-        $where .= " AND last like '%$last%'";
-      }
-    }
-    
     if(array_key_exists("number", $filter)) {
       $add_zero = false;
       $number = $filter['number'];
@@ -183,7 +149,7 @@ class VoicenumberModel {
         $number = substr($number, 1);
       }
       if(is_numeric($number)) {
-        $where .= " AND first <= $number AND last >= $number";
+        $where .= " AND number = $number";
         
         if($add_zero) {
           $where .= " AND number_prepend_zero = 1";
@@ -191,13 +157,6 @@ class VoicenumberModel {
       }
     }
     
-    if(array_key_exists("name", $filter)) {
-      $name = $db->escape($filter['name']);
-      if($name) {
-        $where .= " AND name like '%$name%'";
-      }
-    }
-    
     if(array_key_exists("comment", $filter)) {
       $comment = $db->escape($filter['comment']);
       if($comment) {