I also keep getting calls from this 305-495-2837 number at all hours of the day including throughout the night.  Usually, I get a 3 or 4 sec. voicemail but that's it.  I would suggest avoiding the same and I am going to have the number blocked from my phone.

I got a text from this number telling me:

Special thank you for our registered users. Please call 8883696886 to claim your $100.00 Wal-Mart Gift Voucher! Reply STOP for DNC.

I didn't register for anything, and I'm tired of getting unsolicited text messages!