(Insta accounts) The two usernames are duplicates and resemble each other, differing by the number 4. Duplicate - b64p_ Duplicate - b6pp_ - The two usernames here are duplicates and suitable for you and your friend, resembling each other with a difference in number. _3s9p _3s0p - Usernames that resemble each other, differing by a number, suitable for a group. _b2c5 _b2c6 _b2c8 - 3 semi-quadruple usernames _b2x6 _b6hp _b6cp For a suitable exchange or for sale, like an old account.