Dan, Have you tried sending an email to Merit Network? radb@merit.edu<mailto:radb@merit.edu> https://www.irr.net/docs/list.html It seems like the kind of thing they might have legacy info on. I did a little bit of searching and didn't come up with anything about retired IRRs either. Brian ________________________________ From: NANOG <nanog-bounces+briansupport=hotmail.com@nanog.org> on behalf of Dan Mahoney <danm@prime.gushi.org> Sent: Wednesday, March 23, 2022 7:14 PM To: nanog@nanog.org <nanog@nanog.org> Subject: Historic/Retired Routing Registry Hey there all, I have vague memories of some group running a routing registry that was shut down in the late 90s/early 2000s and I could’ve sworn it was ARIN. It might’ve been Internic or something like that as well. Does anyone have any recollection of this? My Google searching for “retired routing registries” or “ historic routing registries“ seems to fail, But the list of which were in existence at one point or another seems like the kind of thing I’d expect somebody to keep on a webpage somewhere. Ideas? -Dance