32Red is regulated by Gibraltar and powered by Microgaming casino games. Both Gibraltar and Microgaming do not accept citizens from the United States of America.
I sent an email to the 32Red support to get a clear explanation. Here is their answer :
Thank you for your e-mail.
Sorry we are not allowed to accept players from the USA as we do not have a licence for there.
You would be able to play outside the US in countries that we have licences for however we not be able to accept any US based credit cards
As part of the US gambling law, 32Red preferred to step back from the US Markets. However, some online casinos still continue to accept US citizens. Check our top 3 US Casinos.
Technically, you could play to 32Red if you signed up from abroad. For instance if you are in vacation in Cancun or in Panama, you could play to 32Red while you drink your Tom Collins. However, you should not use a US address and an american credit card (from RBS for instance).
This is the same problem as "signing-up from abroad". You could use a VPN to play to 32Red, but you would need to have a real address outside of the US (with phone bill at your name for instance). If you have your father abroad, for instance in the South Africa, it could work. Otherwise, in case you win a $5,000,000 jackpot, 32Red could block your funds..
We know that Bovada is currently accepting US citizens. It is powered by Top Game software and offers a nice welcome bonus.