How to Check Freeze Records of Stablecoin Addresses
To check the freeze records of a stablecoin address, you can directly access the "Frozen Addresses" section on a block explorer or query a third-party AML API. The issuers of the two major stablecoins, USDT and USDC, each maintain their own blacklists, and the query methods differ slightly.
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Step 1: Use a Block Explorer to Directly View the Frozen Address List
What to do: Find the "Frozen Addresses" or "Ban List" feature on a block explorer that supports stablecoin freeze queries.
How to do it:
Tokenview's Ethereum explorer section has a dedicated "Frozen Addresses" feature, where you can view the list of USDT/USDC addresses frozen by Tether/Circle. Click on any address to see detailed transaction information.
Tronscan (TRON network explorer) also supports stablecoin analysis, and you can use the getStableCoinBlackList function to obtain the list of frozen stablecoin addresses and the frozen amounts.
On-chain monitoring Telegram bots also provide real-time tracking. For instance, when the Zama cUSDC contract was frozen, the USDT/USDC Ban List bot generated a real-time record.
What counts as done: You have successfully entered the frozen address query page of the corresponding blockchain explorer and can see the blacklist.
Step 2: Check If a Single Address Is on the Blacklist
What to do: If you have a specific wallet address to check, use an AML screening tool and enter the address.
How to do it:
Blockradar's AML API supports real-time screening of wallet addresses against OFAC, FBI, Tether, and Circle blacklists. After calling the API, if the isBlacklisted field returns true, it means the address has been frozen.
Some block explorers also support direct address entry; if the address is frozen, the page usually shows a red warning label (such as "Banned" or "Blacklisted").
GitHub also hosts OFAC sanctioned address lists maintained by organizations like Brave, containing sanctioned addresses for USDT and USDC.
What counts as done: You have a clear "yes/no" result, knowing whether the address has been frozen.
Key Reminder
USDT and USDC have different freeze policies. Tether froze approximately $3.3 billion between 2023 and 2025, with over 7,268 blacklisted addresses; Circle froze approximately $109 million over the same period, with 372 addresses. Tether uses a "freeze + destroy + reissue" mechanism, while Circle strictly follows court orders and does not reissue after destruction.
Step 3: Check Freeze Actions via On-Chain Event Logs
What to do: If you want to find out when and why a specific address was frozen, search for the relevant events in the "Events" tab of the block explorer.
How to do it:
Tether's USDT contract has a
Blacklist(address indexed _addr)event. When an address is added to the blacklist, this event is logged.Circle's USDC contract has similar freeze-related event logs. When the Zama cUSDC contract was frozen, the event log recorded that the freeze occurred at a specific timestamp.
You can also search for the publicly disclosed lists of frozen addresses from Tether and Circle; they reveal some of the frozen addresses.
What counts as done: You have found the timestamp of the address freeze and the transaction hash that initiated the freeze.
Prerequisites
Before querying, make sure you have the wallet address to check (an Ethereum address starting with 0x or a TRON address) and know which chain it belongs to — use Etherscan/Tokenview for Ethereum, Tronscan for TRON.
Common Reasons for Failure
Only checking one explorer that doesn't support freeze queries: Not all explorers offer a frozen address feature. Tokenview's "Frozen Addresses" is a dedicated entry point designed for this purpose.
Confusing "frozen address" with "contract balance zero": A frozen address does not mean the balance disappears; it simply cannot be transferred. Assets within the frozen address are still visible, but any transfer attempt will fail.
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Risk Reminder
Fund risk: If the stablecoins you receive come from a frozen address, those funds may not be transferable out and could eventually be reclaimed by the issuer.
Account risk: Receiving funds from a frozen address for compliance reasons may trigger exchange risk controls.
Signs that you have correctly completed the process: You have found the target address in Tokenview's "Frozen Addresses" section or Tronscan's stablecoin analysis and can see its clear frozen status. If using an API query, isBlacklisted returned a definite result. If you find an address is frozen, it is recommended not to conduct any transactions with that address — funds received from a frozen address may also be unusable.
