Who called from 4153660299

You are correct.  Sorry for the miss information.  Here is the FTC page on Robo calls
https://www.consumer.ftc.gov/features/feature-0025-robocalls

A woman with an accent. Asking about "a business." Very strange.

I did not answer this call on my cell phone from Belvedere at approx. 10:35 am on April 11, 2016 . Caller left no message. Will block this number.

Robo call for free cruise. Its a phishing scam. Hang up and block the number. Being on a do not call list will not protect you from these types of  calls because they change their number so frequently its hard to catch up to them..

Got a call from this number at 8pm on 4/11 and have had a few others from 415-366-xxxx in the past, all from Belvedere, CA. Definitely spam.