BounceBit Mainnet Sunset: BB Moves to BNB Smart Chain
BounceBit is sunsetting its original chain and Binance has moved BB support to BNB Smart Chain. Here is how to avoid wrong-network transfers.
Crypto Support & Research Desk
Direct answer: BounceBit has decided to permanently sunset its original chain after a hacking incident, and Binance no longer supports BB deposits or withdrawals on the BounceBit mainnet. Binance migrated BB support to BNB Smart Chain at a 1:1 ratio and opened BEP-20 deposits and withdrawals. If you still hold BB outside an exchange, verify which chain and token contract you have before transferring it.
What changed with BounceBit?
Binance says the BounceBit project decided to permanently sunset the BounceBit Chain. Deposits and withdrawals over the original mainnet were suspended, while BB was migrated to BNB Smart Chain. Binance says spot, margin, futures and Earn services were not impacted by the contract swap.
Why this matters for wallet users
A ticker can remain the same while the supported network changes. That creates a wrong-network risk: a user may see “BB” on both sides and assume the routes are interchangeable. They are not. Before transferring, match the network, token contract and destination support.
How to identify where your BB is
Open the wallet or exchange holding your BB and check the network details rather than relying on the token symbol. For self-custody, inspect the asset in the relevant block explorer. For exchange balances, review the deposit and withdrawal network selector.
Sending BB to Binance
Use only a network currently shown as supported on Binance’s BB deposit page. Binance’s announcement states that BounceBit mainnet support has ended and the new supported route is BNB Smart Chain (BEP-20). Copy a fresh deposit address from the official platform instead of reusing an old saved route.
What if you sent BB on the old mainnet?
If the transaction went to an exchange after support ended, do not send more funds to the same route. Save the transaction hash, sending address, receiving address, amount and timestamp, then contact the exchange through its official support channel. Recovery of unsupported-network deposits is not guaranteed and depends on whether the custodian can technically access that network.
What if your BB is in self-custody?
Do not import your seed phrase into a website that claims to perform an emergency migration. Follow only the migration process published by BounceBit and supported wallet providers. If the same address exists on BNB Smart Chain, that does not automatically mean legacy BB has already been converted.
Scam warning
Chain sunsets and contract swaps are high-risk phishing periods. Fake “BB migration support” accounts may ask users to connect a wallet, sign an unlimited approval or enter a seed phrase. Verify the new token contract from official project or exchange sources before interacting.
Official source
Binance announcement: Binance will discontinue mainnet support of BounceBit. Binance states that BB was migrated to BNB Smart Chain at a 1:1 ratio.
FAQ
Is the BounceBit mainnet still supported on Binance?
No. Binance says deposits and withdrawals on the BounceBit mainnet are no longer supported.
Which BB network does Binance support now?
The announcement says BB deposits and withdrawals moved to BNB Smart Chain (BEP-20).
Will sending old-chain BB to a BEP-20 address migrate it?
Do not assume so. A migration or contract swap must follow the project or custodian’s supported process.
This article is informational blockchain-support content and not investment advice. Verify current network support and official contract details immediately before transferring tokens.
Regulatory & Financial Risk Disclosure
The opinions, research, and analysis expressed in this publication are solely for educational and informational purposes and do not constitute investment, financial, legal, or tax advice. Digital asset markets are speculative and volatile. Past performance does not indicate future results. Always perform independent due diligence.
About the Author
Crypto Support & Research Desk
Crypto Support Desk publishes practical, source-led guides to exchange, wallet, network and on-chain service changes. Information is checked against primary or reputable security sources and is not investment advice.