Can't create an organization using a name that appears to be available

I was hoping to create a team/organization through https://github.com/organizations/plan but when trying to use the account name I want (e.g. example-org) it states that the name is already taken. The strange thing is that visiting https://github.com/example-org returns a 404 when using the account name I’d like to use.

Any ideas?

I’m don’t know how the page https://github.com/example-org looked when you visited, but for me it looks like this now:

Which shows that the organization with name example-org is taken, it only hasn’t any public repositories yet (but it may have private repos etc.).

When you request a profile page of some organization that really doesn’t exist, GitHub shows a proper 404 page as expected (e.g. https://github.com/not-existing-organization):

The example-org was an example. I’m seeing the 404 page for the organization name I’m actually trying to register but the form doesn’t let me register it.

Hi everyone,

I wanted to just leave a quick explanation here as I find this quite interesting.

This phenomenon whereby the system won’t let you register a username but there’s no profile at the URL can happen for a couple of reasons.

Most commonly the username being tried is using unsupported characters.
Some usernames are simply unavailable because of namespacing (go to https://github.com/mac for example)

There are some other internal reasons this can happen but I think the above are the most common.

Definitely reach out if you would like more information on whether a potential username is available because it’s not showing up.

Cheers,
Billy

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