Yesterday i lost my nokia 6600

sir,
Yesterday i lost my nokia 6600.. I have mobil bill and serial no. police station FIR copy, but what i want is i have to catch my mobil trough by network,and also if it is not possible means i want to know how to block my mobil..But really some people follow that networks and whatever sim is inside, it will show that area and number all, so please kindly help me, if any possible to online have any deactivate my mobil? please reply my mail id…