It's 1800-555-TELL if it makes it easier for you to remember.
I use them all the time (and for about a year) to check on scores because they have no advertisements or anything. No, they do not return calls to you. The only thing that I wish was different was that they used to update their baseball scores up to the minute, but it seems like a couple of months ago, they changed their systems so they update every 10 minutes or so.