Robtex

Up: 146.57.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 146.57.224.0/20
Down right: 146.57.240.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
146.57.226.36	A+PTR	bks-rchprtrcv01.bookstores.umn.edu
146.57.243.131	A+PTR	rc5.extension.umn.edu
146.57.243.135	A+PTR	ext-rc05-prod.extension.umn.edu
146.57.248.67	PTR	akamai-server-2.northernlights.gigapop.net
146.57.248.177	A	occ-2-286-1239.1.nflxso.net
146.57.248.177	A	occ-0-286-1239.1.nflxso.net
146.57.248.177	A	ipv4-c003-msp001-uminn-isp.1.oca.nflxvideo.net
146.57.248.178	A	occ-2-286-1239.1.nflxso.net
146.57.248.178	A	occ-0-286-1239.1.nflxso.net
146.57.248.205	A+PTR	citympls.router.umn.edu
146.57.248.225	A+PTR	waterhouse-umh.cs.umn.edu
146.57.248.238	A+PTR	telecomb-cn-01-v758.ggnet.umn.edu
146.57.249.82	A	portal2.uofm-guest.wireless.umn.edu
146.57.249.99	A+PTR	planetlab2.dtc.umn.edu
146.57.249.99	A	611442444222222222.96.66.in-addr.arpa
146.57.249.99	A	*.youtube.com.http.l2.l1.l0.nyucd.net
146.57.249.100	A+PTR	planetlab1-console.dtc.umn.edu
146.57.249.137	A	x57-249-137.mptl.umn.edu
146.57.249.138	A	x57-249-138.mptl.umn.edu
146.57.249.143	A	x57-249-143.mptl.umn.edu
146.57.249.157	A	x57-249-157.mptl.umn.edu
146.57.249.174	A	x57-249-174.mptl.umn.edu
146.57.252.149	A+PTR	infotech-gr-01-te-3-1.northernlights.gigapop.net
146.57.253.249	A+PTR	isu.dns.northernlights.gigapop.net
146.57.254.35	A+PTR	akamai-146-57-254-35.northernlights.gigapop.net
146.57.254.41	PTR	akamai-146-57-254-41.northernlights.gigapop.net
146.57.254.43	PTR	akamai-146-57-254-43.northernlights.gigapop.net
146.57.254.48	PTR	akamai-146-57-254-48.northernlights.gigapop.net
146.57.254.49	A	akamai-146-57-254-49.northernlights.gigapop.net
146.57.254.57	A	akamai-146-57-254-57.northernlights.gigapop.net
146.57.254.65	A+PTR	akamai-146-57-254-65.northernlights.gigapop.net
146.57.254.144	A+PTR	akamai-146-57-254-144.northernlights.gigapop.net
146.57.254.146	A+PTR	akamai-146-57-254-146.northernlights.gigapop.net