The 3-letter Roblox usernames had stopped usage in 2016 until the last quipped name. But still, there might be certain combinations left that require hard work and concentration of the players to discover. The username “KFC” was changed to “Reset23323929,” which makes the usernames open. This username was created on October 14th, 2020. The Roblox admins reset some 3 character usernames for some Roblox usernames like KSI, NFL, and BFC. The username “owo” was the last 3 character name without the ‘March 24th, 2022 filter bypass’. This was decided purposely by Roblox to take the usernames from this account.
There are still quite a few 3 letter Roblox names left which are basically difficult to find. The 3 letter Roblox names that are left cannot be just words but also can be some random letters. From the 26 alphabets present, there might probably be 17576 3-character word combinations left that can be curated. Even when few people spend hours and hours finding all the 3 letter usernames, there is very less chance of discovering everything. So there might be some 3-letter words left from the 17576 combinations of names. As the Roblox usernames can also be a combination of numbers, there are even higher chances of finding some 3 letter characters. A sum of around 50653 combinations of letters and numbers is available, so there might be a very high chance of finding 3-letter words as your Roblox usernames.