USDT and USDC blacklist check
Is my USDT frozen? Check whether a wallet address has been blacklisted by Tether or Circle. The answer comes straight from the token contract on Tron, Ethereum, Base, Arbitrum, Optimism, Polygon or Avalanche, with the time of the check.
No wallet connection needed. We read public blockchain data only. We will never ask for your seed phrase or private key, and nobody else should either.
You can confirm any result yourself: open the USDT or USDC contract on a block explorer such as Tronscan or Etherscan and call isBlackListed (Tether) or isBlacklisted (Circle) with the address. This checker makes the same read for you.
Public address lookup only. We never ask for keys, seed phrases or signatures.
Each answer is read live from Tether's or Circle's own token contract on-chain.
Every result shows exactly when it was read, the contract used and an explorer link.
Tether's contract rejects any transfer out of a blacklisted address, so the USDT held there cannot be moved. Tether can also remove the balance of a blacklisted address, which is why a frozen address sometimes shows zero.
Circle's contract blocks a blacklisted address from both sending and receiving USDC, and the USDC it holds cannot be transferred on-chain.
Only the issuer can lift a freeze. If your address is frozen, contact Tether or Circle through their official websites, and never pay anyone who offers to unfreeze funds for a fee. Our guide, why is my USDT frozen?, walks through the next steps.
Choose USDT on Tron or USDT on Ethereum, paste the wallet address and press Check address. The checker calls isBlackListed on Tether's own USDT contract and shows the answer with the time of the check. For USDC, choose the network and the checker calls isBlacklisted on Circle's USDC contract.
Issuers freeze addresses linked to sanctions, hacks, stolen funds and scams, often at the request of law enforcement or other authorities. Tether announced in December 2023 that it freezes wallets of persons on the US OFAC sanctions list. Circle's published policy says it blocks addresses to comply with laws, regulations and legal orders, and in certain urgent law-enforcement or sanctions cases.
Only the issuer can remove an address from its blacklist. Contact Tether or Circle through their official websites and explain your situation with transaction records. Circle's policy says it may reverse a block once the legal order or security issue behind it no longer applies.
No. Only the issuer can lift a freeze, and nobody can do it for you in exchange for a payment, a recovery fee or your seed phrase. Offers like this are a common scam aimed at people who have just had funds frozen.
No. The check only reads public blockchain data for the address you enter. FiraCrypto never asks for your seed phrase, private key or a wallet signature, and you should never share them with anyone.
It means the issuer's contract did not list the address as blacklisted at the moment of the check, so the issuer has not blocked that address from moving its USDT or USDC. Issuers can add an address at any time, so check again before a large trade. A restricted exchange account is a separate decision by that exchange: contact its support.
USDT on Tron (TRC-20) and Ethereum (ERC-20), and Circle's native USDC on Ethereum, Base, Arbitrum, Optimism, Polygon and Avalanche.
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