Sign in and reach the lobby in seconds
Your 644 account unlocks live Baccarat Golden tables, Crash or Cash multiplier rooms and our cricket sportsbook with bKash, Nagad and Rocket already linked to your wallet. Open your account once; every return takes you straight back to where you left off.
Deposit methods inside your account
Once you are signed in, the wallet panel shows bKash, Nagad, Rocket and Upay as chip-load options with the current exchange rate displayed beside each. Select your method, enter the amount you want to send, and we generate a payment reference or account number you copy into your mobile-banking app. Confirm the transfer with your PIN and funds usually appear in your 644 balance within a minute. No need to screenshot receipts or email proof; our system matches the transaction ID automatically and credits your account. Bank Transfer is available for larger amounts and follows the same flow with a slightly longer clearing window depending on your bank's processing schedule.
How account sign-in works on 644
When you create your account we ask for your mobile number and send a one-time PIN to verify it belongs to you. That same number becomes your sign-in credential so you never need to remember a username. Each time you return, enter your number, confirm the OTP we send, and you are back in the
lobby viewing your balance and game history exactly as you left them. We store your payment preferences so bKash, Nagad and Rocket deposits load without re-entry, and your session stays live across browser and app as long as you keep the same device signed in. If you switch devices or clear your browser, the same
mobile-plus-OTP flow gets you back in. We publish our support hours in the account-help section and log every sign-in attempt so you can review recent access from your settings panel.
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Mobile number verification We send a one-time PIN to your number during sign-up and again each time you return, so only you can access the account tied to that mobile.
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Session continuity Sign in once on your phone and your session stays live when you flip between the browser and our app, keeping your balance and open bets visible without re-authentication.
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Payment preferences saved Your bKash, Nagad or Rocket wallet selection is stored after your first deposit, so the next time you load chips the method appears ready without re-entering account numbers.
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Access log available Every sign-in is recorded with timestamp and device type in your account settings, so you can review recent activity and flag anything that looks unfamiliar to our support team.
Account
When you create your account we ask for your mobile number and send a one-time PIN to verify it belongs to you. That same number becomes your sign-in credential so you never need to remember a username. Each time you return, enter your number, confirm the OTP we send, and you are back in the lobby viewing your balance and game history exactly as you left them. We store your payment preferences so bKash, Nagad and Rocket deposits load without re-entry, and your session stays live across browser and app as long as you keep the same device signed in. If you switch devices or clear your browser, the same mobile-plus-OTP flow gets you back in.
Open AccountYour details are encrypted for secure account access.
How we protect your sign-in and wallet
Every sign-in request on 644 is encrypted in transit using standard SSL, so your mobile number and OTP never travel as plain text across the network. We store your password as a salted hash and never log the OTP PIN after it expires, which keeps your credentials out of reach even if our database were accessed. When you request a withdrawal we cross-check your registered mobile number against the bKash or Nagad account name to confirm the funds go to the same person who made the deposit.
SSL encryption
All data moving between your device and our server—sign-in credentials, OTP codes, payment details—is encrypted with industry-standard SSL so third parties cannot intercept it.
Hashed passwords
We store your password as a one-way hash with a unique salt per account, which means even our own staff cannot read the plain-text version if they view the database.
Withdrawal matching
Before releasing funds we verify that the name on your bKash, Nagad or Rocket account matches the name you provided during sign-up, reducing the risk of unauthorized withdrawals.
Identity verification for changes
If you request a mobile-number update or password reset we ask for a photo ID and a live selfie to confirm you are the original account holder before making the change.
Account access questions we hear most
644 Login
Service availability depends on eligible regions and local law. Users should check local rules before opening an account.
Access may be available only where local law permits.