Who called from 2310000000

I get them every day, no answer, don't say a word

Several calls from 231-000-0000 a day but never leave a message.  It's irritating; am going to block that number on my phone.

I don't usually answer numbers that I don't know but did today. they ask for some random name this time "Katie" then o I must have the wrong number

Got call asked for my wife.  I said she's not available he said okay. I said you can talk to me.  He replied no he can't and he will call back at a later date.  Then he hung up.

this is the number to the state of Michigan State Police Post and looked into it reason there's so many different messages so if any of you guys are tied in with drugs watch your back