Most pans are oversafe, many will have it on the bottom of the pan along with the size. Any pan that has a rubber handle grip you will want to double check on.
I know all of my Caphalon pans are oven safe to 450 or 500. If you know the manufacturer you should be able to look it up online.
Most pans that are all metal are oven safe. I wouldn't put one under a broiler unless it was marked such. I typically use my Lodge fry pan when I do this for steaks or pineapple upside down cake. Can you look up the manufacturer's website?