Does anyone happen to know a number I can call to report someone to the IRS in New York State? (Broome County)

Here is a web site for New York state with locations and phone numbers:
Contact My Local Office in New York (http://www.irs.gov/localcontacts/article/0,,id=98318,00.html)

The main number:
Telephone Assistance for Individuals
Toll-Free, 1-800-829-1040.

OK, thanks