Usually an old paid email address has a grace period for accessing it for don't depend on exact cut off dates as well as forwarding functions as said above. I'm still receiving forwarded email from my old sbcyahoo address 10 mos later.
If you use the web app (as opposed to Outlook, or if you use both) look for contact download/export functions where you can create a CSV file. You can then edit it and load it to a service such as gmail giving yourself a nice clean and data scrubbed address book.
pkq turned me onto gmail so I wouldn't have these problems again. Been well worth it.
Frends know gud humors when dey is hear it. ~ Da Crockydiles of ZZE.