diff --git a/meshtastic/portnums.proto b/meshtastic/portnums.proto
index 918b063..07c8051 100644
--- a/meshtastic/portnums.proto
+++ b/meshtastic/portnums.proto
@@ -227,6 +227,12 @@ enum PortNum {
    */
   POWERSTRESS_APP = 74;
 
+  /*
+   * LoraWAN Payload Transport
+   * ENCODING: compact binary LoRaWAN uplink (10-byte RF metadata + PHY payload) - see LoRaWANBridgeModule
+   */
+  LORAWAN_BRIDGE = 75;
+
   /*
    * Reticulum Network Stack Tunnel App
    * ENCODING: Fragmented RNS Packet. Handled by Meshtastic RNS interface