r/mainframe
ActiveDiscussion of all things Mainframe - hardware & software, programming & support.
Members
8,030
Last post
Unknown
Posts (30 days)
56
Created
2010
August 6, 2010
Total posts
—
archived
Total comments
—
archived
Is r/mainframe dead? Active community.
r/mainframe is posting regularly. Active subreddits can't be requested through r/redditrequest.
Find abandoned subreddits in this niche you can claim →Frequently asked questions about r/mainframe
How many members does r/mainframe have?
r/mainframe has roughly 8,030 members.
When was r/mainframe created?
r/mainframe was created on August 6, 2010.
Can I take over r/mainframe?
Probably not. r/mainframe is still in active use, and Reddit only hands over communities whose human moderators have all gone inactive on Reddit for 60+ days. If you want a community in this niche, look for abandoned subreddits on the same topic instead — DeadSubs finds them automatically.
Want your own subreddit with a built-in audience?
Thousands of subreddits like r/mainframe have been abandoned by their moderators. DeadSubs finds the ones you can claim.
Activity checked November 11, 2026from the Arctic Shift Reddit archive. Member counts come from the archive's most recent crawl and may lag Reddit. DeadSubs is not affiliated with Reddit Inc.