blocklist.fyi

USDT Blocklist Checker

Paste any wallet address to check whether Tether has blocklisted (frozen) its USDT - across Ethereum, TRON and every other USDT chain. Free, no signup, updated in real time.

What the USDT blocklist is

Tether can add any address to the USDT contract's blocklist. A blocklisted address can no longer send or receive USDT - its balance is effectively frozen - and Tether can later destroy the frozen tokens entirely. Tether does this in response to law-enforcement and court requests, mostly around theft, scams and sanctions. Every blocklisting is an on-chain transaction, so it is public and verifiable.

How this checker works

We index the USDT blocklist events straight from the Ethereum and TRON contracts (and every other chain USDT is deployed on) and record each address's status and at-freeze balance. Enter an address above to open its status page, or browse the full live ledger of blocklistings and largest USDT freezes.

Frequently asked

How do I check if a USDT wallet is blocklisted?
Paste the wallet address into the checker above. It opens a status page showing whether the address is blocklisted on each chain USDT runs on, when it happened, and the USDT balance frozen at that time.
Is the USDT blocklist checker free?
Yes. Checking any address is free with no account. A keyed API is available for automated/high-volume use.
What happens when Tether blocklists an address?
The address can no longer transfer USDT, so its balance is frozen in place. Tether can later destroy those tokens, removing them from supply. Both actions are recorded on-chain.
Can a blocklisted USDT address be unblocklisted?
Yes, though it is rare. Tether can remove an address from the blocklist, which we record as an unblocklisting event and reflect on the address's status page.