Halo servers for Xbox 360 games shutting down next month - Polygon

343 Industries announced on Dec. 13 that the Xbox 360 versions of seven Halo games would sunset their servers on Jan. 13, 2022. The server retirement does not affect games included in Halo: The Master Chief Collection or Halo Wars: Definitive Edition.

Halo: The Master Chief Collection News

Microsoft Says Xbox 360 Servers Are Not Shutting Down in November 2016

Halo Xbox 360 Servers to Be Shut Down in December 2021 - mxdwn Games

Microsoft battling Halo 4 spoiler videos after inevitable leak

Halo 2 News

The Halo Xbox 360 Servers Have Shut Down

343 Industries closing Halo Xbox 360 servers at the end of 2021

January 13 is Going to Be a Heartbreaking Day for Halo Fans

Halo: Combat Evolved - Wikipedia

Some Xbox 360 'Halo' titles have had matchmaking shut down

News - August, 2020

Halo 4 Overview