J-2 is MIG-15, J-2,J-5,and J-6, are all out of service. Except for the fact that some J-5,J-6, and J-7 were coverted to ground attack UAV. All the old fighters/intercepters in service are early varients of J-7, J-8, J-8B/D. They are getting replaced by J-7E/G,J-8F/H,J-10,Su-27/30/J-11 and maybe Fc-1.