EAsement i

I need to determine if AT&T has been assigned an easement on my residential property in Orange County, California established in 1951 for The Pacific Telephone and Telegraph Company.  I would like to discuss vacation of this easement and/or restrictions of this easement.  Please provide contact information for your real estate department in California.  I have tried calling AT&T and have received a lot of run around with no direction.

Thank you