This site help you to find the Air Cargo Tracking sites of all Airlines in the world....

Airline Name

Cathay Pacific Airways CX (Prefix: 160)
Korean Air Cargo KE (Prefix: 180)
Sri Lankan Cargo  UL (Prefix: 603)
Qatar Airways QR (Prefix: 157)
Emirates Sky Cargo EK (Prefix: 176)
British Airways BA (Prefix: 125)
Malaysian Airlines MH (Prefix: 232)