Can we still get just modems? Like motorola MB8611, Arris S33, or Netgear cm200?

Can we still get just modems? Like motorola MB8611, Arris S33, or Netgear cm200?

The MB8611, S33, and CM2000 are all listed as compatible with Comcast/Xfinity internet service, although not with "enhanced" upload speeds. Follow the "See all modems" link near the bottom of https://www.xfinity.com/support/internet/customerowned. All compatible retail modems and gateways are listed on that page.