Circle has released this month's attestation report on US dollar reserves backing USDC, which is issued by independent accounting firm, Grant Thornton LLP. These documents are created and published each month and can be accessed via our website or Centre Consortium's. The report states that as of February 28, 2021 at 11:59 PM PT:
Read the full report here for more information on issued and outstanding USDC. Grant Thornton LLP releases USDC attestation reports on Circle’s USD coin reserves every month, so be sure to come back and read next month's report when it is released.