Somewhat concerning call today

I got a call today from American Income Life Insurance whom is which I use. This person claimed something about unclaimed life insurance payouts and an adjustment on benefit amount and if I wanted to add someone to this benefit. They knew my first and last name which isnt much to go off I know so I said I'll just add my brother. I gave them his first name and he automatically knew how to spell our last name which wasnt setting off any red flags at the time. Then I gave his birthday which I thought was weird they needed this information because they should already have it. As soon as that happened the call hung up and the line died. I tried calling back and it went straight to a dead line every time leaving me to believe they blocked me which is when a bunch of red flags started setting off for me. Is someone trying to scam me? Are they trying to impersonate my brother or something? Did I fuck up or am I okay? I really dont know what happened or if I should even be worried. They never claimed to be an insurance agent either which looking back at it now they usually do and give me whatever branch they're out of. Should I contact my insurance agent? I really hope something bad doesn't come out of this.