they just called and hung up, there have been a lot of IRS scam fraud calls threatening to arrest you and or file a lawsuit if you don't send them money, usually around $300 to $1200
. Don't believe them, the irs almost never calls and would never call on a saturday, or saturday night or sunday or a holiday, and if they were to call you , 1st you would have received a certified letter   you had to sign for, I usually don't answer numbers I don't recognize , but have in laws in the 660 area code , and don't know what there cell number is.
making a note of this one so I can set my call forwarding to forward this call to a disconnected number.

Received a call from this number at 9:54pm on a Sarurday. There was no response when I answered.

they have to be stopped ! they call all day ! I work nights and have kids an elderly people in my family. I cant shut my phone off

I don't know anyone from Missouri. I'm tired of telemarketers calling.

660 is a legitimate area code for north central Missouri ... the vast majority of us in that area code are not affiliated with charity solicitations or security scams