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You are here: Home About Contact the Free Software Foundation Mailing address and telephone/fax numbers

How to contact the Free Software Foundation:

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Free Software Foundation
51 Franklin Street, Fifth Floor
Boston, MA 02110
USA

The Boston office will be closed on May 27 and July 3 and 4, 2024.

Telephone: +1-617-542-5942 (Individual phone extensions at the FSF)

Fax: +1-617-542-2652

General email: info@fsf.org

To donate by check: mail to the address above. The FSF can accept Canadian checks; please ask your bank to add a corresponding US bank on the check so that we don't get charged fees for depositing it. If you plan to donate in any other currency, please contact info@fsf.org for details on how to make a transfer from a foreign bank account. If it is a directed donation (e.g. for a sponsored project like Replicant), please write that on the memo line of the check. See more ways to donate to the FSF here.

The FSF is a charity with a worldwide mission to advance software freedom — learn about our history and work.

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