From the FTC:
"Q: How do I order my free report?
The three nationwide credit reporting companies have set up a central website, a toll-free telephone number, and a mailing address through which you can order your free annual report.
To order, visit annualcreditreport.com, call 1-877-322-8228. Or complete the Annual Credit Report Request Form and mail it to: Annual Credit Report Request Service, P.O. Box 105281, Atlanta, GA 30348-5281. Do not contact the three nationwide credit reporting companies individually. They are providing free annual credit reports only through annualcreditreport.com, 1-877-322-8228 or mailing to Annual Credit Report Request Service.
You may order your reports from each of the three nationwide credit reporting companies at the same time, or you can order your report from each of the companies one at a time. The law allows you to order one free copy of your report from each of the nationwide credit reporting companies every 12 months."