Called (CID says from Michigan) my phone at 3:47 PM CST, did not leave a message. 231 is an area code that covers the western half of Northern Michigan.
Called cell, I didn't answer. Most likely robo-calling marketers or phony debt collectors. I, too, don't give my number out, and I, too, pay per minute, so these calls are a blight upon poor cell phone users. Hey, telemarketers and phony debt collectors, you can always do honest work at McDonalds and probably get a free lunch every day. Stop bothering people you don't know.