Originally Posted by Seat 2A

5. Jim is a consular attaché working in Romania in the 1960s. He needs to write down a phone number that he’d rather others not discover, so he does so in aviation related code. Use these hints to discover the U.S. area code plus standard seven digit phone number: (Area Code=Britannia 737-200) + Northwest 707-320 + Lufthansa + South African