Ralph Schultz has suggested getting telephone numbers on the web,
an excellent suggestion that saves the cost of calling Information.

However, as with so many things dealing with computers, it is advisable
to have additional ways of doing something, in case the first does not
work.  So here are two more sites that can find telephone numbers and
addresses, and they can even provide maps: http://www.infospace.com/
and http://www.switchboard.com/

Hope this helps,

Cecil Grace