OK, who's chummy with RIPE ranges? I've been doing some housecleaning and find an awful lot of ranges that are broken into suspiciously small segments (< 24) and/or divided among suspiciously many countries. Some may be cell phones and some may be sublets, but naturally I suspect some unidentified server farms hiding in there.
These are the ranges I looked up, and what-if-anything I learned. Most of the names don't mean anything to me.
Free lookup says Marktplaats NL. Could be anything.
31.160 is KPN Internet solutions. Sounds vaguely familiar. Not sure about the rest.
Global Layer. Have I heard of them?
Tagadab. Ridiculous name, but I think it's hosting.
Take 2 Hosting. Uhm. I don't think there's any "I think..." about that one.
Akamai NL. What is Akamai, anyway? I recognize the name but have no idea what they do.
Free lookup says "European Backbone 1 of Phibee-Telecom". That looks like English, but ### if I know what it means.
What I get: .80-83 redstation; .84 hosting; .85 who-knows; .86-87 Tadbir Server -- OK, s-word.
This is an awfully wide range and I've never figured out if it's a Romanian server farm or just a bunch of sublets. And now we're in the part of Eastern Europe where computers are so infection-prone I just can't be bothered: one robot or botnet and they're banned. (I do feel bad for the occasional Polish human who's stuck with the wrong ISP, though.)
"Quant House". Anyone know what that means?
Agile Communications Group: US, UK or both. I'm always uneasy when an entity can't make up its mind what country it belongs to.
Amro Bank NL. OK, so they've got branches all over the place-- but how much legitimate browsing?
Free lookup says 240-43 Valueserver / Atomhosting. Well. Hm. Taking a wild guess, I think this might possibly be a server farm. (For one subrange, same free lookup also says "Dongwang.net" and --in German-- "Online Dienste", leading to some very, very weird mental pictures.)
Stackscale / Servihosting. Can't remember what country this officially belongs to.
"International Widespread Services". Can't argue with the name, since the company seems undecided whether it lives in Europe, Colombia or UAE.
wikimedia Europe. Well, fancy that. I guess they get a pass. At least for now.
Aspider Solutions International, where "international" means they live in Malta and vacation in NL, or possibly the other way around.
22.214.171.124/21 with a possible added 112-127
This is the only range I found mentioned anywhere in WebmasterWorld: there's a fairly recent thread talking about fishy activity from Nokia. (The actual range is reported as something odd, like 102-133.)
193.43.0 or 0-7
Is this a PI networks range? I never know what to do about those. I mean, wouldn't we all like to have our very own IP?
Level 3 / Global Crossing. How in the world did that slip between the cracks?
There were more on my list, but I think they might just be cell phones. Shrug.
I don't normally block ranges a priori, unless it's something like Hetzner where you know from the start that no good will come of them. But if I've labeled someone as "robot", then if I later find an unwanted visitor from that range, I can just block it without investing any more time.