This document is a collection of known IP ranges used by Google Home services. The IP ranges can be used to limit access of exposed endpoints for Google Assistant Integration (e.g. Home Assistant). The IP ranges in this document have been comfirmed to be owned by Google and been tested to work from Switzerland. PRs with additional IP ranges (incl. for other locations) are most welcome!
74.125.0.0/16
66.249.64.0/19
66.102.8.0/23
108.177.0.0/17