Phone enable/disable question

Okay, so my phone just got stolen this morning and I plan to disable it using its imei number(or is it already too late for that?).Question is, can the disabled phone be enabled again by the thief?

if the IMEI is blocked it can never be reactivated without changing the IMEI, which is extremely difficult.

Thanks for the response.Last question, can I disable the phone at any given time even after they took out my sim out of the thing?

yes, it disables the hardware.

Good and thanks. >:D

your sim can still be put in another phone and used so you will need to get your network to bar the sim as well.