Can I add my phone number to multiple accounts?
You can add your phone number to up to 10 accounts. It’s important to note that only the account most recently linked to this phone number can perform SMS commands and receive SMS notifications for account activity like Direct Messages, new followers, Retweets, etc. Any other accounts you have associated with your phone number will not be able to edit Text notifications settings. Each account that has your phone number associated with it will still receive SMS text messages for password reset requests or security features like login verification.