What is my 10 Digit Check-in Code? 24GO Support July 30, 2019 03:06 Updated Follow Your 10 Digit Check-in Code is usually your phone number (area code + number). If you need assistance in determining your 10 Digit Check-in Code is please contact us at support@24GO.zendesk.com. Related articles What information do I need to sign up for 24GO? Memberships - General Questions How Do I Earn Fit:Perks® Using 24GO Is there a minimum age requirement to use 24GO? How can I delete my 24GO account? Comments 0 comments Please sign in to leave a comment.