Same nefarious IRS scammers, calling from a new number of the day. THey call my cell phone every day, always from a new number. These are dangerous people; do not answer and do not return a call to these scammers. If you do get on the line with them, do not release any personal information.
August 18, 2016, 7:57 AM!!! Call from 213-300-2071. CID said WIRELESS CALLER. No message.
Business calls are not permitted prior to 8 AM, and marketing calls not before 9 AM. Either way, this looks like a great candidate for a complaint to the FCC under the Do Not Call registry.