Can I re-connect my Switchboard account after disconnection?

Absolutely. You can either re-connect your Switchboard account through the Twilio Authorized Apps page or on your Switchboard Settings page. Any phone numbers present in your Switchboard sub-account (within Twilio) will be available for you to manage in Switchboard.

For the most part assuming you haven’t moved your phone numbers to another Twilio account, you should be able to continue right where you left off.