called me 3 times in 1 hour, 10:32,  10:57, and 11:33 am today. They leave no message. This is simply a harassment call.  I haven't a clue who they are.

Called me again today, this time left a message referencing a claim number. I have never had any dealings with theses scammers before and I have no outstanding uncollected debts.  These people are idiots.

Been away on vacation and when I returned I had these calls from (813) 343-2306 on my work number.  They all left a message about some 6 digit claim number and to return the call to (888) 787-4608. Caller id starts with a letter, immediately followed by a 14 digit number. Smells of a scammer or debt collector to me, neither of which I talk to, so I will not be calling them back.  If it was legit, they would state the detailed reason for the call:

3x on Friday 2/5/2016: once at 2pm, then 2x 20 minutes apart around 5pm.
1x on Monday 2/8 after 6pm
1x today around 10 am.

Harassing.

They ask for your social security information and they do not disclose who they are. Call multiple times and when you call back, they hang up on you.

They call back to back and when they do leave a message it's a partial claim number.

They never identify themselves.

This is a scam.