diff --git a/Allowlist.txt b/Allowlist.txt
index 496191f..041e6d9 100644
--- a/Allowlist.txt
+++ b/Allowlist.txt
@@ -520,6 +520,7 @@ sso.taxfix.com
 # -----------------------------------------
 # 🟢 Core App / Login / Vertragsdaten
 app.o2online.de
+api-o2de.mytelco.io
 
 # 🟢 Core App API (Vertragsdaten / Login / Tarifinfos)
 prd-o2de-northeurope06.mytelco.io