diff --git a/src/blackmisc/nwclientlist.cpp b/src/blackmisc/nwclientlist.cpp
index 5698859e1..251822c63 100644
--- a/src/blackmisc/nwclientlist.cpp
+++ b/src/blackmisc/nwclientlist.cpp
@@ -10,6 +10,8 @@
 #include "nwclientlist.h"
 #include "predicates.h"
 
+using namespace BlackMisc::Aviation;
+
 namespace BlackMisc
 {
     namespace Network
@@ -39,5 +41,21 @@ namespace BlackMisc
             registerMetaValueType<CClientList>();
         }
 
+        /*
+         * Find by callsign
+         */
+        CClientList CClientList::findByCallsign(const CCallsign &callsign) const
+        {
+            return findBy(&CClient::getCallsign, callsign);
+        }
+
+        /*
+         * Find by callsign
+         */
+        CClient CClientList::findFirstByCallsign(const CCallsign &callsign, const CClient &ifNotFound) const
+        {
+            return this->findByCallsign(callsign).frontOrDefault(ifNotFound);
+        }
+
     } // namespace
 } // namespace
diff --git a/src/blackmisc/nwclientlist.h b/src/blackmisc/nwclientlist.h
index b30191a08..597cb918e 100644
--- a/src/blackmisc/nwclientlist.h
+++ b/src/blackmisc/nwclientlist.h
@@ -15,6 +15,7 @@
 #include "nwclient.h"
 #include "sequence.h"
 #include "collection.h"
+#include "blackmisc/avcallsign.h"
 #include <QObject>
 #include <QString>
 #include <QList>
@@ -39,6 +40,11 @@ namespace BlackMisc
             //! Register metadata
             static void registerMetadata();
 
+            //! Find by callsign
+            CClientList findByCallsign(const BlackMisc::Aviation::CCallsign &callsign) const;
+
+            //! First by callsign
+            CClient findFirstByCallsign(const BlackMisc::Aviation::CCallsign &callsign, const CClient &ifNotFound = CClient()) const;
         };
 
     } //namespace