There are plenty of Easter Eggs to find in Avengers: Infinity War, and Captain America's phone number was supposed to be one of them. You can clearly see the phone number in the flip phone that Steve Rogers gave to Tony Stark at the end of Civil War, when Bruce Banner picks it up. The number is 678-136-7092, which is an Atlanta based number where most of the production for Infinity War and the upcoming Avengers 4 took place. As it turns out, the Russo Brothers had the number set up for a viral marketing campaign, but Disney's legal team said no to this cool Captain America Easter egg.

After Infinity War hit theaters, several Marvel Cinematic Universe devotees copied down Steve Rogers' digits to call after the movie. However, the line was disconnected. When people found out that the number was a real phone number, confusion started to spread.