This number and very similar numbers are constantly calling my cell phone which is reserved for family & friends. I don't answer and never will.
As JoeyDee said; You are wise to block the caller by whatever means you have. You probably won't be able to find out who it is that's calling, as they are calling from spoofed numbers, maybe from overseas.
Harrassment phone calls to place of business. Over 15 calls in 2 hours to our place of business. They do not follow compliance laws as I have hit option 2 to remove from call list more than 4 times already and they keep coming.
Twice I have hit the option 1 and spoken to salespeople and asked them to remove and both hung up before I finished the sentence.
I give very few people my number so this set off an alarm for me as it wasn't saved in my contacts and I don't know anyone from Missouri. I didn't pick up, but since they didn't leave a message, I'm pretty sure it's some scam. Not surprised.