> ## Documentation Index
> Fetch the complete documentation index at: https://developers.cloudtalk.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Edit a number

> Updates the number identified by `id`. All three fields are optional: `internal_name` sets the number's internal label, and `connected_to` with `source_id` set what it routes to. To strip a number's routing entirely, use Unregister a number instead. Returns `404` if no number has that ID.

Note the core API updates with `POST`, not `PUT`.



## API Specification

The full API specification for this endpoint is available in the [documentation index](https://developers.cloudtalk.io/llms.txt).


## Related topics

- [Edit number on blacklist](/api-reference/utilities/edit-number-on-blacklist.md)
- [Edit contact](/api-reference/contacts/edit-contact.md)
- [Edit an agent](/api-reference/agents/edit-an-agent.md)