Commitment to Transparency & Security
At 399b, we ensure the highest security for players. Your information and transactions are always protected. Transparent betting processes and accountability are our core principles.
399b is a Bangladeshi online gaming and sports betting platform fully designed for mobile users. We believe the country’s youth deserves only the best in sports and entertainment, so we launched a local language and mobile-optimized experience.
Our goal is to create a safe, fast and exciting gaming and betting opportunity that is easy to access and highly trustworthy. The platform operates 24/7 year-round so you can join anytime.
At 399b, we ensure the highest security for players. Your information and transactions are always protected. Transparent betting processes and accountability are our core principles.
Bet instantly from your phone. We ensure fast loading and hassle-free platform so the gameplay stays uninterrupted.
Full service in complete Bengali according to the highest local community demand. Special offers and promotions for Bangladeshi players.
We promote gaming as healthy entertainment and provide education and support for responsible betting. Player well-being is our priority.
First Register Fill in easy form. Your information will be kept confidential for your security.
Add money safely via your bKash, Nagad or bank and get ready to bet.
Bet on Sports, Game Lobby, and other categories or play games easily and quickly.
Today Register Join the world’s most advanced and secure platform.
Register Now