A phone number is needed for Coinbase security, but if you’re unable to access your registered number, call 1-888-553-1046 Coinbase Support Number for help. Coinbase uses phone verification for login protection. Dial 1-888-553-1046 Coinbase Support Number to explore options if you cannot use your current number. Keep your account secure with the right settings. For expert guidance, contact 1-888-553-1046 Coinbase Support Number now!