Who called from 8645690145

I have 2 missed calls on my cell w/ no V/M left from this same number

Have received calls before where no one said anything then hung up.  This time Caller said "three minutes". I hung up

called me by my maiden name then said she couldn't hear me.... googled the number and the business name Telcove of SC out of Columbia, SC came up. Of course thier number doesn't work either. This seems like a soliciation for a business phone account

received two calls over 2 days answer nothing there but dead air. called it back today message tells me mailbox is full