diff --git a/NXDNGateway/NXDNHosts.txt b/NXDNGateway/NXDNHosts.txt
index cb16ad1..8551b3a 100644
--- a/NXDNGateway/NXDNHosts.txt
+++ b/NXDNGateway/NXDNHosts.txt
@@ -44,6 +44,9 @@
 # 2225  IT Tuscany
 2225  80.211.99.134 41400
 
+# 2231  IT Multiprotocollo Sardegna
+2231  nxdn.is0.org 41400
+
 # 2249 IT SICILIA
 2249 nxdn.digitalsicilia.it 41400