Welcome to the GSA AAC Inquiry website
The GSA AAC Inquiry website provides addressing information for GSA and DoD assigned Activity Address Codes, including GY, GZ, GX, and GP series AACs designated for GSA Advantage. In addition, you can find the Transportation Control Number (TCN) associated with a purchase order or requisition generated through GSA Advantage.

A User ID and password is required for access. Please contact gsa.advantage@gsa.gov to receive a user ID and password or if you have forgot your user ID or password.

AAC Inquiry Login