The Farman of this series was antiquated and was supposed to begin being phased out for the newer Amiot and Leo aircraft, however this was the only thing available in any significant quantities insofar as long range was concerned, and range it did have.
One such variant, the F. 223s, some of which were built as long range transports and mail planes, and with the outbreak of war they were converted to bombers. One such variant, the
Jules Verne F.NC.223.4, was the first Allied aircraft to bomb Berlin. These variants carried just over 3 tons of bombs over 3,000 miles, although the Berlin mission involved a 2 ton (4,000 lbs) bomb load, for 13.1 hours flight time.
Great story here:
SOLO TO BERLIN War and Game
The only other French bomber to come close to this range performance was the Le0. 451 with a maximum of 1,000 kg (2205 lbs) bombload, to 2,900 km (1,802 miles).