ETH: USDC Supply by Network (Issuer-Reported)
Ethereum USDC Supply by Network (Issuer-Reported): daily data through 8 Nov 2026.
USDC in circulation on every network Circle issues it on, as Circle itself reports it, with the largest networks shown one by one.
Why use it. USDC is issued natively on many networks; where its supply sits shows which chains its users, exchanges and applications are moving to, and how much of it Ethereum still holds. How to read it. The bands stack to Circle's total for the token. A widening band is a network gaining USDC; Ethereum's band can be checked against our own node in USDC on Ethereum: Issuer-Reported and On Our Node. Amounts are tokens at face value (one US dollar per USDC token).
Calculation. Each network's amount in Circle's reading; the networks shown are the largest in the latest reading and the others are summed as All Other Networks (the set is the same over the whole history). Issuer-reported: Circle's own figures from its public stablecoin endpoint, read by CryptoKeyhole every 10 minutes since 7 November 2026, each network's amount as Circle states it with its update time. Only the Ethereum figure can be checked on our own node; the other networks' amounts are Circle's. An hour takes the last reading inside it and a day its last reading; the latest day is a partial that updates every 10 minutes. History begins with our first reading: earlier figures are not reconstructed.