Sep 26, 2015
As you did not call MetLife, it is possible this is a phishing call by a scammer.
Otherwise :
An insurance representative looking for new clients and trying to weasel around the Do Not Call regulations.
Someone prank-called the representative with a spoofed number, and the representative is returning the call with the only number he has.
However, it is not unusual for large insurance companies to have representatives that work from their own home in rural areas. In 1976, when I got my own car and my own insurance, I used the same insurance company that my parents had. Their local representative worked from a room in his house in Victoria, Texas. There was nothing in the room except a desk, two chairs, and the telephone. Saved the company a lot of money (and himself) from having to rent a storefront location. The area around that city is mostly rural and ... guess what ... the farmers and ranchers also work from their homes ! Not unusual at all.
MetLife has a subdomain for jobs : https://jobs.metlife.com/
Google "MetLife work-at-home" to see many results that discuss potential jobs.