Who called from 5624523108

Called me yesterday (10/5/15) at 4:37pm and again this morning (10/6/15) at 9:30am. No voicemail was left.

Called me yesterday (October 5) at 2:00 pm and again this morning (October 6) at  10:17 am. No voice message.  I have added them to my reject list.

Funny, called me a minute after you yesterday (10/5/15) at 4:38pm, and one minute after you again today (10/6/15) at 9:31am.  No voicemail either.  I just blocked this caller.

Called me yesterday at 6pm, no voicemail. Called back and reached a voicemail of "Usonia (?) Research California" if I heard that correctly.

I called back the number and got an auto voice message. I couldn't hear the first part clearly, but part of its name is Research Group California. I would not be surprised if this is a telemarketing company that is doing "research" for their dime on your time.