The don't have enough space in T5 for everything, so T1 and T3 are also used.
Any of the ex-bmi routes which haven't made the move to T5 are still at T1 (AMM, HAJ and RTM), as are DUB and BHD as I don't think T5 is set up for Irish or Northern Irish flights. TLV and CAI have moved to T1 also.