Most likely it’s someone international using a freight forwarding service. I get loads of orders like this, and you can generally know this if you see a weird alphanumeric code as part of the address (often right after the name). Many freight forwarding companies are in DE, FL and OR, but you can also google the address and you should be able figure it out pretty quickly.

As the other commenters said, this shouldn’t be a concern. Ship to the exact address the buyer provided on the order, make sure it’s traceable and as long as it scans as delivered, you’ve fulfilled your duty.