Just like with Verizon, customers on Comcast’s Xfinity Mobile and Charter’s Spectrum Mobile will need a Galaxy S25 or Google Pixel 9 to access the feature, which is powered by the non-terrestrial network service provider Skylo. This is the same company that worked with Google to launch the Pixel 9’s Satellite SOS feature.

For now, Xfinity Mobile and Spectrum Mobile will only let Galaxy S25 and Pixel 9 owners send emergency messages without Wi-Fi or cellular data, but both companies plan on letting them send and receive SMS text messages over satellite “in the coming weeks.”

Disclosure: Comcast is also an investor in Vox Media, The Verge’s parent company.