Announcement List
colo-announce@lists.riseup.net: A public, low volume, announcement only list of vital information directly related to SCCP.
Discussion List
colo-discuss@lists.riseup.net: A public, unmoderated list for discussing anything pertinent to SCCP.
Member List
colo-members@lists.riseup.net: A private, unmoderated list of everyone who has a box in the colo.
Ops List
colo-ops@lists.riseup.net: A private list for the core operations team responsible for running the colo.