FS Foundation Application

The following page provides details on domains, networks, IPs, hosting services, and content delivery networks used by FS Foundation.

What is FS Foundation?

FS Foundation Logo

FS Foundation - Business
The Free Software Foundation (FSF) is a nonprofit that promotes computer users' freedom to run, study, modify, and share software.


FS Foundation Domains

fsf.org is the primary domain associated with FS Foundation.


Network Ranges

  • 209.51.188.0/24

FS Foundation uses dedicated network blocks. This application dataset includes only those network ranges exclusively assigned to this service.


FS Foundation Network

Some organizations deploy all or parts of an application solution through their own infrastructure instead of third party hosting providers like AWS or Google Cloud Platform. The following is a sample of active IP addresses on the FS Foundation Network.

Sample IP ASN
209.51.188.48 AS22989
209.51.188.52 AS22989
209.51.188.55 AS22989
209.51.188.127 AS22989
209.51.188.160 AS22989
... and 13 more