Scam or not?

I recently got a call from supposedly Dell. The number is 1-800-456-3355. They called and knew I cancelled a previous order and they knew the order number. They asked for my new order number which I gave since it seemed like a legit call. I called Dell customer service on their website and they said this was indeed Dell calling. Now I'm still wondering if me providing my new order number is enough info for this potential scammer to steal my identity.