So, I don't usually ask about these sort of things, I always ignore them. It was a little unsettling now that I'm in the military. The call only lasted a few seconds but the location pinged South Korea, and I have no idea what they were speaking, Korean? Maybe?

Most likely a scam, but I really don't know how they got my number. I only ever use for work, SMS verification, and friends & family. Unless they had some connection to the one's who owned this number before me.

Should I report this to my security manager or ignore it?

Not trying to make a big deal out of this, I just saw Korea pop up and thought, "...oh fuck"