...
| Type | Description | Reassignable? |
|---|---|---|
| badge | An identifier used for physical access control (ie: encoded on an access card) | Yes |
| enterprise | An organization wide identifier, typically used for system-to-system communication and typically unknown to the user | No |
| eppn | eduPersonPrincipalName, as described in this document | Yes |
| eppnnr | Non-reassignable eduPersonPrincipalName | No |
| epuid | eduPersonUniqueId, as described in this document | No |
| network | An identifier used for logging into network-accessible services, such as a NetID | Yes |
| x-* | For local use |
...