If memory serves, the Sudanese Air Force inventory includes, but is not limited to: 8 MiG-21 Fishbed; 3 Mig-23 Flogger; 7 F-5E/F Tigers; 5 Shenyang F-6 Farmer; 10 Shenyang F-5 Fresco; 12 Chengdu F7B. They have a pair of Spanish made Aviocar C-212 recon craft. They have three C-130H. Further, they have 8 Pumas; 6 Mi-8 Hind; 4 Mi-4; 2 Mi-24 Hind helicopters; and a brace of Alouettes.
For the most part, their Air Force is in pretty bad shape. I don't know how many of their weapons are airworthy, but I wouldn't put them on the same technological level, as, say, Belize. ((Actually, your question intrigued me. I typed in "sudanese air force" in the dialogue box, and all this info popped up.))
I almost forgot. For cardinal4's reference, they also have a couple of Embraers.