What is a stablecoin blacklist?
It is a list of wallet addresses, kept inside the coin’s own contract, that are not allowed to move it.
Checked against our records on . Free to read, no account.
The list lives inside the coin
A stablecoin is a contract published on a blockchain by the company that issues it. Most of these contracts contain a list of blocked addresses and a function that adds to it.
Because the list is part of the contract, the block is enforced by the blockchain itself. There is no step where a bank or an exchange decides whether to honor it. A transfer from a blocked address simply fails.
Which direction is blocked depends on the coin, and this is the detail most explanations get wrong. USDT blocks sending only, so coins can still arrive at a blocked wallet and then cannot leave. USDC blocks both directions, so a transfer to a blocked address fails too.
The list is public. Anyone can read it, which is what makes a site like this possible — we are not told about freezes, we read them off the chain.
Who controls it
The company that issues the coin. For USDT that is Tether; for USDC that is Circle. Each keeps its own list, in its own contracts, on each blockchain where it publishes the coin.
Different companies use it differently. Some have blocked thousands of addresses; some have blocked none. A few stablecoin contracts have no blocking function at all, and for those the honest answer is that no freeze has ever been recorded, because none is possible in the contract as deployed.
Blacklist, freeze, block — the same thing
Different companies use different words in their contracts. You will see "blacklist", "freeze", "block", and "ban", and they describe the same outcome: the wallet cannot move that coin.
We use whichever word people actually search for, and we always show the exact event name from the contract alongside it, so the record can be checked rather than taken on trust.
What it is not
It is not a government sanctions list. A blacklist lives inside the coin’s own contract and the company that issues the coin controls it. Where a third party publishes a sanctions list on-chain, that write is recorded here as a SANCTIONED event — a company’s rendering of a list, with its own lag, carrying the transaction that wrote it. Governments publish their own lists through their own official channels, which are a separate record.
It is also not a judgment about a person. We publish what a company did and when. We do not publish opinions about why, and we do not score anybody.
Questions people ask
Is a stablecoin blacklist the same as a sanctions list?
No. A blacklist is a list inside the coin’s contract, controlled by the company that issues the coin. A sanctions listing written to a contract on-chain is recorded here too, as a SANCTIONED event with the transaction behind it. Governments publish their own lists through their own official channels, which are a separate record.
Can I see the blacklist myself?
Yes. The list is part of a public contract on a public blockchain. Every event we publish shows its transaction and block number so it can be checked independently.
Do all stablecoins have one?
No. Some contracts have no blocking function at all. Where that is the case we say so, and it means no freeze has ever been recorded on that coin on the chains we check, as of 17 August 2026.
Does being blocked affect my other coins?
No. Each coin is a separate contract with its own list. A wallet blocked for one stablecoin can still move everything else it holds.