Does Coinbase use ERC-20 network?

ERC20 is not supported by Coinbase .

(BTCT / USD) Bitcoin TRC20 is not supported by Coinbase .

Tether’s issuer claims that USDT is backed by bank reserves and loans which match or exceed the value of USDT in circulation. Important: at this time, Coinbase only supports USDT on the Ethereum blockchain (ERC-20) .

TRC20-USDT refers to USDT issued on the TRON network, ERC20-USDT refers to USDT issued by Tether on the Ethereum network . The USDT issued on TRC20 and ERC20 are both identical, however fees to transfer this USDT can often be cheaper on the Tron network using TRC20.