diff --git a/features/lorawan/lorastack/mac/LoRaMac.cpp b/features/lorawan/lorastack/mac/LoRaMac.cpp
index e8eda9000a..f686d569a2 100644
--- a/features/lorawan/lorastack/mac/LoRaMac.cpp
+++ b/features/lorawan/lorastack/mac/LoRaMac.cpp
@@ -1331,14 +1331,6 @@ void LoRaMac::reset_mac_parameters(void)
     _params.last_channel_idx = _params.channel;
 }
 
-bool LoRaMac::is_fPort_allowed (uint8_t fPort)
-{
-    if ((fPort == 0) || (fPort > 224)) {
-        return false;
-    }
-    return true;
-}
-
 void LoRaMac::open_continuous_rx2_window (void)
 {
     handle_rx2_timer_event();
diff --git a/features/lorawan/lorastack/mac/LoRaMac.h b/features/lorawan/lorastack/mac/LoRaMac.h
index 0b333e972c..5e9c233a22 100644
--- a/features/lorawan/lorastack/mac/LoRaMac.h
+++ b/features/lorawan/lorastack/mac/LoRaMac.h
@@ -540,11 +540,6 @@ private:
      */
     lorawan_status_t send_frame_on_channel(uint8_t channel);
 
-    /**
-     * Checks for Port validity.
-     */
-    bool is_fPort_allowed(uint8_t fPort);
-
     /**
      * Prototypes for ISR handlers
      */