I need accurate names and telephone numbers for expired listings?

[Charles Stewart II]

Hello All,

I am a real estate agent and I am looking to "work" expired listings.  I would like advice on where I can find accurate names and telephone numbers of owners of homes whose listings have expired.  I know there are a number of companies that claim to have the information for a monthly fee, but I have been researching and found that some of those companies do not have accurate data.  

Any help from anyone who are or have been successful working expired listings, I would greatly appreciate your help.

Thank you in advance.

Charles