anyone in the atlanta ga area familiar with fulton county jails?

[love my kids]

I am looking for my son who was arrested in GA. I am in florida and he tried to call me from a "Fulton County Detention Center". I have looked up everywhere online to find the website and phone number/address and I have not come up with anything. I have called many numbers and they do not have him booked at the places that I have called. I know he has not been released, and I know at some point he is being transferred back to Florida for his hearing.

Please any information would be great. Thank you in advance.