Twitter Handle Rules
Your Twitter handle, now your X handle, is the @username in your profile address (x.com/username). It’s unique to your account, it’s what you log in with, and it shows on every reply and Direct Message you send. These are the rules X applies today:
X (Twitter) username rules at a glance
- Length
5-15 characters
Older accounts can be as short as 1, but new usernames need at least 5.
- Characters
Letters, numbers, and underscores (_) only
- Change limit
None published
X publishes no rename limit. On a checkmarked Premium account, changing the username removes the checkmark until X reviews it.
- Old name after a change
Immediately
X states a changed-away username is immediately available for someone else - no hold period at all.
- Profile text
Name up to 50, bio up to 160
- Usernames containing "Admin" or X's own brand name cannot be claimed, except by official X accounts
- No spaces, hyphens, or symbols other than underscore
Twitter is now called X, and both of our handle pages check the same handle. This page covers the rules and how to pick a handle that fits. Our X handle checker covers what’s specific to X today: the Handle Marketplace for inactive handles, the inactive-account policy, and what a handle change does to a blue checkmark.
Fitting a Name Into 15 Characters
X allows 15 characters at most, the shortest maximum of any platform we check (tied with Snapchat). Instagram allows 30, TikTok 24 and YouTube 30, so if you want one name everywhere, X is where it has to fit first.
- Settle the short form first. If your name or brand runs past 15 characters, pick the shortened version now and use it on every platform, rather than a long name elsewhere and a cut-down one on X.
- Put the full name in your display name. Your display name can be up to 50 characters and changed at any time, so a short handle like @frbakes can sit next to "Fresh Bakes" in full.
- Use underscores, not periods. X accepts letters, numbers and underscores only, so a dotted Instagram name like
fresh.bakeswon’t carry over, whilefresh_bakesworks on both. Keep it to one underscore at a natural word break; each one is harder to say out loud. - Mind the minimum. New handles need at least 5 characters. Shorter handles you see on X belong to older accounts, and you can't register one as a new username.
What Your Twitter Handle Result Means
- Available. Nobody holds the handle right now. Claim it on X straight away, when you sign up or, in the app, under Settings and privacy, then Account, then Username. X frees a changed-away handle immediately, and short or dictionary handles are a race between automated watchers.
- Taken. An account holds it, and a profile that looks abandoned may not be: X notes that not all signs of account activity are publicly visible. Try a variation, or watch the handle and we alert you once it is confirmed free. X watching is part of Pro and Business.
- Invalid. The handle breaks X's rules: longer than 15 characters, a character other than letters, numbers and underscores, or shorter than 5 with no account holding it. Nobody can register it, so change the name rather than watch it.
- Sign-up or upgrade prompt. We only show verified X results, and they come with Day Pass, Pro, and Business. Guests are asked to create an account, and free accounts to upgrade.