"Once customers are notified, they are presented with a personal take-action date that is 30 days from the original notification. If you happen to miss the deadline and still want to retain your address, you can choose Option 1 and switch over to AOL.
"Based on the current rate of migration it looks like Verizon will probably get through all of the customer notification waves by mid-summer. At that point, the company will assess when the platform might be entirely wound down."Note: Like I mentioned before, keep in mind that subscribers can indeed keep their verizon.net email if they like. It'll just be handled by AOL's systems and user interface going forward.
Network World says that "Verizon controls 4.5 [million] Verizon.net email accounts, and [Verizon] figures about 2.3 million of them are active." Active meaning that they have been accessed in the last 30 days.
June 26, 2017 Update: As related to me and others by AOL, the Verizon mailboxes that remain have now been transitioned to AOL's mail servers.