Updating your phone +1-833-326-6631 or (833) 326-6631[USA] number in Coinbase can be done through the "Settings" section. Once logged in, go to the "Security" tab, and under "Phone Numbers (833) 326-6631," you can change your current phone number by entering a new one. Coinbase will send a verification code to the new number, which you need to enter to confirm the change. If you face any difficulties, Coinbase's customer support at (833) 326-6631 can walk you through the update process, ensuring your information is up-to-date.