No Destination listed on my fed ex tracking number...?

hello. I ordered something online, and was provided with the shipping number. Definitely not a scam, so no worries there. However, when I check the tracking number it says in transit but does not list anything under the destination. Any clue why?

You Should contact Fed ex at 18004633339 with your tracking number because due to some issue they may return the same packet to the sender.

Good Luck.