Key Highlights
- Tether blacklisted at least 33 addresses on the TRON network on October 28, 2026, which held about $27 million in USDT at the time of flagging, with the largest single address holding about $7.8 million.
- The blacklist function is controlled solely by Tether through the TRC-20 smart contract, which prevents flagged addresses from sending or receiving USDT.
- Tether has not disclosed the reasons for this coordinated batch of freezes, which follows hundreds of blacklistings in September 2026, mostly on TRON.
On October 28, Tether, the issuer of the world’s largest stablecoin, blacklisted at least 33 addresses on the TRON network. At the time they were flagged, the addresses held about $27 million in USDT, according to monitoring data from TrustSniffer. The largest single address held around $7.8 million.
These numbers highlight monitored balances at the moment of flagging. They do not necessarily equal the exact amount frozen when the blacklist transactions were executed. Tether has not publicly disclosed the reasons for the coordinated action.
How the addBlackList Function Works
USDT on TRON operates under a TRC-20 smart contract that includes built-in administrative functions controlled solely by Tether. The critical function, addBlackList, is designed to add an address to an on-chain blacklist. Once listed, the address cannot send or receive USDT. Any transfer attempt involving the address is rejected by the contract.
However, the balance will remain visible on explorers and in wallets. However, it is economically immobilized. Other assets on the same address, such as TRX, continue to function normally. Tether can later remove an address via removeBlackList or permanently destroy the funds with destroyBlackFunds. On the blockchain, unfreezes take place but are relatively uncommon.
These actions are recorded as public events on the blockchain, which allows independent monitors to track them in near real time.
The October 28 freezes are linked to a concentrated batch rather than isolated actions. Various reports have confirmed the same core details based on TrustSniffer data.
This is not the first time Tether has frozen addresses. In the past, Tether has frozen many addresses, often in response to law-enforcement requests, sanctions designations, or links to hacks, scams, or other illicit activity. TRON hosts a large share of USDT transaction volume and has accounted for the majority of recent freezes on the blockchain. Trackers show thousands of addresses currently restricted across chains, with total frozen USDT valued in the billions of dollars.
In September 2026 alone, Tether blacklisted hundreds of new addresses, predominantly on TRON. Earlier in October, the company had also frozen wallets linked to specific outflows from other platforms.
Tether Remains Silent Over Address Blacklisting
As of October 29, Tether has issued no public statement detailing the grounds for this particular set of freezes. The company typically does not comment on individual compliance actions unless they relate to high-profile sanctions or law-enforcement cooperation.
Independent monitors continue to log new blacklist and unblacklist events. Users and platforms that interact with USDT on TRON routinely check addresses against the on-chain blacklist before accepting large transfers, because funds sent to a blacklisted wallet become stuck.
Blacklisting does not remove tokens from the total USDT supply unless Tether later burns them. It simply prevents movement of the affected balances. For holders of the flagged addresses, the USDT is inaccessible until Tether intervenes.
The action underscores the centralized control that stablecoin issuers retain over their tokens even when those tokens circulate on public blockchains. TRON remains one of the primary networks for USDT payments and transfers, making issuer-level restrictions a recurring feature of the ecosystem.
Market observers and compliance teams are watching for any follow-up disclosures or additional freezes. Updates from on-chain monitors such as TrustSniffer continue to provide the most timely public record of these events.
