This is not your own personal 411 number service operator.
You don't say why you want to know, so your report and any answer you might receive won't help anyone else.
And this information is something you could look up yourself in a reverse phone directory. I know that may cost money (one service charges $159 to hire a private detective to search proprietary databases if necessary), but we would have to pay the same fee if we had to find out for you.
Or perhaps you could use your favorite search engine to look up the number. Why not try that? After all, you found us -- why not search for them?