Who called from 5624917000

Calls repeatedly, (like three times in twenty minutes) never leaves a message.

Called Jan 9 2008. didn't leave a message.

Called then sent me a text message from 6005000015  then said call: 5624917000.  What the heck?

It is Molina Healthcare of CA.

I recieved 2 calls in a row from this number. Neither time was a message left or even anyone on the phone. I got on the computer to look the number up.

I called the number and it said "This is Molina Health Care of California", bizzarre I have Molina Health Care of Ohio, so why would California be calling me?