Can co-host view who registered for the webinar? How to view?

Hi @dapliew, welcome to the Zoom community!

You can find instructions to download a list of registrants and their registration details here: https://support.zoom.us/hc/en-us/articles/201393719-Webinar-reports. As long as you have one of the following account settings: Webinar host, admin, or have a role with access to usage reports, you should be able to view this information. Hope this helps 😊