Twilio sends you a port-away notification whenever one of our carrier partners notifies us that a phone number in your project is being ported (moved) from Twilio’s platform to another carrier’s network. If this port-away notification was initiated by you and/or otherwise expected, you should approve the notification. If this port-away notification is not warranted, you should dispute the port-away notification. Once you have disputed the port-away notification, we will work on your behalf to retain the phone number. If you do not submit a dispute, the port-away request will be allowed to proceed.