Coinbase said it will stop supporting USDC deposits and withdrawals on the Noble network from Aug. 17, narrowing support for the stablecoin on that blockchain while leaving other supported networks unaffected. The exchange said USDC transfers will continue on Ethereum, Base, Solana, Arbitrum, Optimism and Polygon. It also warned users not to send funds to Coinbase USDC deposit addresses on Noble after Aug. 17, saying those assets may not be recoverable. The notice points to an operational network support change rather than a broader change to USDC availability on Coinbase.