diff --git a/libuavcan/include/uavcan/internal/transport/dispatcher.hpp b/libuavcan/include/uavcan/internal/transport/dispatcher.hpp
index b9895b4ffd..e398cbd618 100644
--- a/libuavcan/include/uavcan/internal/transport/dispatcher.hpp
+++ b/libuavcan/include/uavcan/internal/transport/dispatcher.hpp
@@ -43,6 +43,8 @@ class Dispatcher : Noncopyable
         void remove(TransferListenerBase* listener);
         void cleanup(uint64_t ts_monotonic);
         void handleFrame(const RxFrame& frame);
+
+        int getNumEntries() const { return list_.length(); }
     };
 
     ListenerRegister lmsg_;
@@ -85,6 +87,10 @@ public:
     void unregisterServiceRequestListener(TransferListenerBase* listener);
     void unregisterServiceResponseListener(TransferListenerBase* listener);
 
+    int getNumMessageListeners()         const { return lmsg_.getNumEntries(); }
+    int getNumServiceRequestListeners()  const { return lsrv_req_.getNumEntries(); }
+    int getNumServiceResponseListeners() const { return lsrv_resp_.getNumEntries(); }
+
     IOutgoingTransferRegistry* getOutgoingTransferRegistry() { return outgoing_transfer_reg_; }
 
     NodeID getSelfNodeID() const { return self_node_id_; }
diff --git a/libuavcan/test/transport/dispatcher.cpp b/libuavcan/test/transport/dispatcher.cpp
index 87441bed14..1261b3ac92 100644
--- a/libuavcan/test/transport/dispatcher.cpp
+++ b/libuavcan/test/transport/dispatcher.cpp
@@ -129,6 +129,11 @@ TEST(Dispatcher, Reception)
     // Multiple service request listeners are not allowed
     ASSERT_FALSE(dispatcher.registerServiceRequestListener(subscribers[3].get()));
 
+    // Item count validation
+    ASSERT_EQ(3, dispatcher.getNumMessageListeners());
+    ASSERT_EQ(1, dispatcher.getNumServiceRequestListeners());
+    ASSERT_EQ(2, dispatcher.getNumServiceResponseListeners());
+
     for (int i = 0; i < NUM_SUBSCRIBERS; i++)
         ASSERT_TRUE(subscribers[i]->isEmpty());
 
@@ -181,6 +186,10 @@ TEST(Dispatcher, Reception)
     dispatcher.unregisterServiceRequestListener(subscribers[3].get());
     dispatcher.unregisterServiceResponseListener(subscribers[4].get());
     dispatcher.unregisterServiceResponseListener(subscribers[5].get());
+
+    ASSERT_EQ(0, dispatcher.getNumMessageListeners());
+    ASSERT_EQ(0, dispatcher.getNumServiceRequestListeners());
+    ASSERT_EQ(0, dispatcher.getNumServiceResponseListeners());
 }