diff --git a/lib/NGCP/Panel/Controller/API/Root.pm b/lib/NGCP/Panel/Controller/API/Root.pm
index 5f443c952c..e583c27994 100644
--- a/lib/NGCP/Panel/Controller/API/Root.pm
+++ b/lib/NGCP/Panel/Controller/API/Root.pm
@@ -156,18 +156,22 @@ sub GET : Allow {
         my ($form) = $full_mod->get_form($c);
 
         my $sorting_cols = [];
-        if (my $order_by_cols = eval { $full_mod->order_by_cols(); }) {
-            $sorting_cols = [ sort keys %$order_by_cols ];
-        } else {
+        my ($explicit_order_cols, $explicit_order_cols_params);
+        if ($full_mod->can('order_by_cols')) {
+            ($explicit_order_cols,$explicit_order_cols_params) = $full_mod->order_by_cols();
+            $sorting_cols = [ sort keys %$explicit_order_cols ];
+            $explicit_order_cols_params //= {};
+        }
+        if (!$explicit_order_cols || $explicit_order_cols_params->{columns_are_additional}) {
             my $item_rs;
             try {
                 $item_rs = $full_mod->item_rs($c, "");
             }
             if ($item_rs) {
                 if(ref $item_rs eq "ARRAY") {
-                    $sorting_cols = [map { $_->{name} } @{ $item_rs }];
+                    $sorting_cols = [sort (@$sorting_cols, map { $_->{name} } @{ $item_rs })];
                 } else {
-                    $sorting_cols = [$item_rs->result_source->columns];
+                    $sorting_cols = [sort (@$sorting_cols, $item_rs->result_source->columns)];
                 }
             }
         }
diff --git a/lib/NGCP/Panel/Controller/API/Subscribers.pm b/lib/NGCP/Panel/Controller/API/Subscribers.pm
index a2a04b8ec8..37ab87a604 100644
--- a/lib/NGCP/Panel/Controller/API/Subscribers.pm
+++ b/lib/NGCP/Panel/Controller/API/Subscribers.pm
@@ -263,6 +263,17 @@ sub query_params {
     return $params;
 }
 
+sub order_by_cols {
+    return 
+        { create_timestamp => 'provisioning_voip_subscriber.create_timestamp' }, 
+        { 
+            columns_are_additional => 1,
+            create_timestamp => {
+                join => 'provisioning_voip_subscriber',
+            },
+        };
+}
+
 sub GET :Allow {
     my ($self, $c) = @_;
     my $page = $c->request->params->{page} // 1;
diff --git a/lib/NGCP/Panel/Role/API.pm b/lib/NGCP/Panel/Role/API.pm
index 3ceb01c2d1..b2c8163c2b 100644
--- a/lib/NGCP/Panel/Role/API.pm
+++ b/lib/NGCP/Panel/Role/API.pm
@@ -701,19 +701,31 @@ sub paginate_order_collection_rs {
         rows => $rows,
     });
     $self->define_collection_infinite_pager($c, undef, $item_rs, $rows, $no_count);
-
-    if ($order_by && ((my $explicit = ($self->can('order_by_cols') && exists $self->order_by_cols()->{$order_by})) or $item_rs->result_source->has_column($order_by))) {
-        my $col = ($explicit ? $self->order_by_cols()->{$order_by} : $item_rs->current_source_alias . '.' . $order_by);
-        if (lc($direction) eq 'desc') {
-            $item_rs = $item_rs->search(undef, {
-                order_by => {-desc => $col},
-            });
-            $c->log->debug("ordering by $col DESC");
-        } else {
-            $item_rs = $item_rs->search(undef, {
-                order_by => "$col",
-            });
-            $c->log->debug("ordering by $col");
+    if ($order_by) {
+        my $explicit_order_col_spec;
+        if ($self->can('order_by_cols')) {
+            my($explicit_order_cols,$explicit_order_cols_params) = $self->order_by_cols();
+            $explicit_order_col_spec = $explicit_order_cols->{$order_by};
+            $explicit_order_cols_params //= {};
+            if ( exists $explicit_order_cols_params->{$order_by}->{join} ) {
+                $item_rs = $item_rs->search(undef, {
+                    join => $explicit_order_cols_params->{$order_by}->{join},
+                });
+            }
+        }
+        if ($explicit_order_col_spec or $item_rs->result_source->has_column($order_by)) {
+            my $col = $explicit_order_col_spec || $item_rs->current_source_alias . '.' . $order_by;
+            if (lc($direction) eq 'desc') {
+                $item_rs = $item_rs->search(undef, {
+                    order_by => {-desc => $col},
+                });
+                $c->log->debug("ordering by $col DESC");
+            } else {
+                $item_rs = $item_rs->search(undef, {
+                    order_by => "$col",
+                });
+                $c->log->debug("ordering by $col");
+            }
         }
     }
     my $result_class_after = $item_rs->result_class();