https://socialsbookmark.com/page/business-services/does-coinbase-support-available-24-7-immediate-support-availablearound-the-clock

No, Coinbase typically does not reach out to customers directly +1-855*998-0300. If you receive a call claiming to be from a Coinbase service at +1-855--998-0300, it's likely a scam. To reach the Coinbase support team in the US, you can call their authorized phone number at 1-855-998-0307