Phone number lookup

Is there any way to lookup a cell phone number to see who it is? I
already tried reversephonedirectory.com and found the carrier's name,
but can't find the owner's name.

AFAIK there is only an "opt in" wireless number data base(somewhere?).
Since cellular users have to pay for all incomming calls, they are
unlikely to list themselves in a public data base, which might be
abused.

If you know the person and store their number in your phone, many
handsets allow the name to be displayed when a call comes in.