Taken means an account holds the name
Every username is unique on its platform. If another account has it, the platform rejects your attempt.
Inactive is a description, not a status
An account that has stopped posting still holds its username. None of the three platforms publishes a rule that frees a name because the account went quiet.
Available means the platform accepts it today
If your settings accept the name, it is yours to register. That can change later, so do not wait.
Check on each platform you care about
- Instagram: enter the name in Edit profile.
- TikTok: enter the name in Edit profile and see whether it is accepted.
- Snapchat: enter the name when changing it. Remember you can only change once a year.
If it is held, look at the routes
The eligibility page lists which situations have a route. Otherwise see alternatives.
Official sources
- Instagram Help Center: change your username
- TikTok Support: changing your username
- Snapchat Support: change your Snapchat username
Platforms change their help pages and forms often. Follow the wording on your own screen and the current Help Center. Usernm is an independent service and is not affiliated with Meta or any platform named on this site.