Log back in to your 644 account and dive into the gaming world. Secure, fast, and simple.
Log in with the email or mobile number and password you registered with.
Use the same email or mobile number you provided during registration.
Passwords are case-sensitive. Make sure Caps Lock is off.
Having trouble logging in? Get help in Bengali via live chat — available 24 hours a day.
Every login session at 644 is fully encrypted. Your username and password are never stored as plain text — all credentials are kept hashed.
Every time you log in, 644's system automatically checks for suspicious activity. Additional verification is required if a login attempt comes from an unrecognized device or unusual location.
You can enable two-factor authentication (2FA) on your account. Using 2FA via SMS or an authenticator app adds a strong extra layer of protection.
No need to worry if you have forgotten your password. Click "Forgot your password?" and a reset link will be sent to your registered email. If the issue persists, contact live chat support.
If an account has been inactive for a long time, additional verification may be required for security. This is done to keep your account protected.
644 will never ask for your password via email, SMS, or chat. If anyone requests your password, contact support immediately.
If you're having login issues, our Bengali support team is ready to help. Send us a message on live chat.
Log in to your 644 account to unlock all premium features.
Live Casino, slots, Sports Betting, and over 5,000 more games — all under one login.
Daily bonuses, cashback, and special promotions are available to logged-in members only.
Fast deposits and withdrawals via mobile banking and bank transfer.
Earn points on every bet and redeem them for rewards and bonuses.
Log in through the mobile app using the same account. A seamless experience across any device.
Logged-in members get priority support with fast responses in Bengali.
Keep these tips in mind to stay secure. A little caution goes a long way in protecting your account.
Use a password of at least 12 characters, combining uppercase and lowercase letters, numbers, and special symbols.
Never share your password with anyone — not even family or friends. No 644 staff member will ever ask for your password.
If you log in from a cyber cafe or public Wi-Fi, always log out when you're done.
Enabling two-factor authentication keeps your account safe even if your password is compromised.
Never click unfamiliar links claiming to be from 644 via email or SMS — visit the website directly instead.
Forgot Password
Use the "Forgot Password?" link on the login form.
Account Locked
Verify your identity via live chat to unlock.
Login from a New Device
Approve new devices using a verification code sent by email or SMS.
Register for free and enjoy all the benefits, including a welcome bonus.
Already have an account? Log in. New here? Register for free today.