The account widely identified as Roblox’s 1 billionth user is Azoo5573. The oldest public references on that account say it was the milestone profile at users/1000000000, and later videos and posts repeat the same name.

Quick Scoop

Here’s the simplest version:

  • Name: Azoo5573.
  • Claim: It is described as the 1 billionth Roblox user/account.
  • Context: The account became a piece of Roblox trivia and online folklore, with later discussion around its profile and disappearance.

What to know

There is some internet confusion because “1 billionth user” can mean either the milestone account ID or a real person attached to that account, but the recurring answer in public posts is still Azoo5573. A few later forum-style and video posts also describe the account as having been taken over or forgotten, which is part of why the story kept spreading.

Bottom line

If someone asks “what was the 1 billionth Roblox user,” the commonly cited answer is Azoo5573.