New one for me
At this point I got curious and went to do some spot-checking, as I'd got much of 45 listed as bogons (not sure why, since some of them are claiming registrations as far back as 1996). In a race to see how many I could hit before free lookup got annoyed and started demanding proof of humanity on every third request:
Holy ###, what a dense cloud of robots.
45.2-3 IANA Reserved (I think this means nobody will ever be visiting from there)
45.4-7 bogons under LACNIC
45.8-15 bogons under RIPE
RIPE I can understand, but why on earth does LACNIC need extra room when you can still walk in off the street and pick up a /12? Be that as it may, I think a lot of 45 has been reassigned; 64-65 (at a minimum) belongs to assorted APNIC countries in RIPE-sized niblets, and there are a couple of LACNIC countries further down.
Moving on ...
45.16-31 45.16.0.0/12 AT&T
45.32 Choopa
45.33.0-127 45.33.0.0/17 Softlayer / Linode
45.33.128-143 45.33.128.0/20 Hurricane Electric
45.33.144-159 45.33.144.0/20 Enzu
45.33.160-191 45.33.160.0/19 Colo America
45.33.192-207 45.33.192.0/20 Infinite Web (never heard of 'em, but they don't
sound human)
45.33.208-223 45.33.208.0/20
nothing yet 45.33.224-239 45.33.224.0/20 Cloud South (Serverlogy Corp.)
45.33.240-255 45.33.240.0/20 Hengtong IDC
I realize that there are plenty of perfectly legitimate humans with Chinese names, and some of those humans may choose to give Chinese names to perfectly legitimate US-based corporations ... but still, I am always suspicious. Right now I'm in high hopes for a
45.32.0.0/15
45.34-35 45.34.0.0/15 Psychz
... OK, make that
45.32.0.0/14
After this it gets less interesting, and for a while breaks into annoying /21 and even /22 slivers (honestly, who do they think they are, RIPE?). Highlights:
45.38-39 45.38.0.0/15 EGI Hosting
45.40.48-63 45.40.48.0/20 XeHost
45.40.96-127 45.40.96.0/19 KVC Hosting
45.40.128-191 45.40.128.0/18 Godaddy
45.40.192-255 45.40.192.0/18 OppoBox
45.41 0-63 45.41.0.0/18 Virtuzo (human? who knows...)
45.41.80-95 45.41.80.0/20 Hengtong IDC (yes, them again)
45.41.192-255 45.41.192.0/18 HostAware
45.42.32-35 45.42.32.0/22 Epic Hosting
45.42.52-55 45.42.52.0/22 Desert Cloud
(Anyone know? Google was amazingly unhelpful, aside from offering a lot of pretty pictures, but the name element "cloud" naturally raises suspicion.)
45.42.80-95 45.42.80.0/20 Hengdong (for those who are keeping count, that makes three)
45.42.128-255 45.42.128.0/17 Roya Hosting
Sadly, the intervening bits of 45.42 appear to be human.
45.43.32-63 45.43.32.0/19 XeHost
45.43.128-191 45.43.128.0/18 Cloud South
(see above about "Cloud")
45.43.224-239 45.43.224.0/20 Yunxin LLC
(and see above about perfectly legitimate humans with Chinese names)
45.45.128-255 45.45.128.0/17 Contina
(wtf? I thought Contina was infection-prone Russians)
45.54.0-127 45.54.0.0/17 Host Virtual
45.54.128-255 45.54.128.0/17 Union Pacific Railroad
(I mention this only because I was staggered to learn that any railroad in the US is
acquiring assets. Of any kind.)
45.55 45.55 Digital Ocean
(This was where we came in.)
45.56 0-63 45.56.0.0/18 Google Fiber
(wtf? Was there a post about this?)
45.56.64-127 45.56.64.0/18 Linode
45.56.128-191 45.56.128.0/18 Hosting Services / Simple Link
45.56.192-255 45.56.192.0/18 Sago Networks
(The last is human, darn it, so there goes your /16 out the window.)
45.57.0-127 45.57.0.0/17 Netflix
45.57.128-255 45.57.128.0/17 B2Net / ServerMania
(Well, that's
something at least.)
45.58.48-63 45.58.48.0/20 HostUs
45.58.64-79 45.58.64.0/20 DropBox
45.58.112-127 45.58.112.0/20 ReliableSite / Choopa
45.58.128-191 45.58.128.0/18 SharkTech
(Don't know what that last one is, but it sure doesn't
sound human.)
45.59.16-31 45.59.16.0/20 Aventice
... and that was as far as I got before free lookup pulled the plug. Watch out for this range, though; they're sublets, so absolutely anything could happen, at absolutely any size. (The random number I looked up was a /29.)