I have probably received around 300-500 text messages from race organizers of the America Cup over the last few hours. The text messages come from a sequentially increasing number. The first message I received today came from 

2702574391662 and the last is up to 2702574391853

There is no reply to address and no ability to opt out in the message. I want to contact the company that is sending them and get them to stop using my (very easy to remember) number.