Two interesting web sites I have been using are
to see or report who that number belongs to on the callerID… is it a Telemarking call??? Find out at www.whocalled.us It is useful when you get serveral calls from a toll free caller or an out of state call. This web site tracks many varied numbers as reported by the public.
Also the reverse phone number lookup at
is good for telling you who belongs to what number. Both sites are still free as of now.