Robtex

Up: 146.66.144.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 146.66.152.0/22
Down right: 146.66.156.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
146.66.152.1	PTR	gw.lux.valve.net
146.66.152.2	PTR	fw0.lux.valve.net
146.66.152.2	A	lux.valve.net
146.66.152.10	PTR	pcroot01.fra-1.srcds.valve.net
146.66.152.10	A	cm01-lux.cm.steampowered.com
146.66.152.11	PTR	pcroot02.fra-1.srcds.valve.net
146.66.152.11	A	cm02-lux.cm.steampowered.com
146.66.152.187	PTR	146-66-152-187.valve.net
146.66.152.193	PTR	146-66-152-193.valve.net
146.66.152.224	PTR	146-66-152-224.valve.net
146.66.153.1	PTR	146-66.153-1.valve.net
146.66.153.243	PTR	146-66.153-243.valve.net
146.66.153.250	PTR	146-66.153-250.valve.net
146.66.154.10	PTR	146-66-154-10.valve.net
146.66.154.10	A	valve264.steampipe.steamcontent.com
146.66.154.10	A	valve264.steamcontent.com
146.66.155.1	A+PTR	vie.valve.net
146.66.155.4	PTR	146-66-155-4.valve.net
146.66.155.4	A	valve1204.steamcontent.com
146.66.155.4	A	cache3-vie1.steamcontent.com
146.66.155.5	PTR	146-66-155-5.valve.net
146.66.155.8	PTR	146-66-155-8.valve.net
146.66.155.9	PTR	146-66-155-9.valve.net
146.66.155.10	A	cache1-vie1.steamcontent.com
146.66.155.10	A	valve1200.steamcontent.com
146.66.155.10	A	valve1200.steampipe.steamcontent.com
146.66.155.11	PTR	146-66-155-11.valve.net
146.66.155.11	A	valve1201.steampipe.steamcontent.com
146.66.155.19	PTR	146-66-155-19.valve.net
146.66.155.20	PTR	146-66-155-20.valve.net
146.66.155.20	A	cache6-vie1.steamcontent.com
146.66.155.34	PTR	146-66-155-34.valve.net
146.66.155.36	PTR	146-66-155-36.valve.net
146.66.155.38	PTR	146-66-155-38.valve.net
146.66.155.38	A	cm1-vie1.cm.steampowered.com
146.66.155.41	PTR	146-66-155-41.valve.net
146.66.155.51	PTR	146-66-155-51.valve.net
146.66.155.62	PTR	146-66-155-62.valve.net
146.66.155.66	PTR	146-66-155-66.valve.net
146.66.155.66	A	cache7-vie1.steamcontent.com
146.66.155.66	A	valve1208.steamcontent.com
146.66.155.67	PTR	146-66-155-67.valve.net
146.66.155.67	A	cache8-vie1.steamcontent.com
146.66.155.67	A	valve1209.steamcontent.com
146.66.155.68	PTR	146-66-155-68.valve.net
146.66.155.69	PTR	146-66-155-69.valve.net
146.66.155.76	PTR	146-66-155-76.valve.net
146.66.155.100	PTR	146-66-155-100.valve.net
146.66.155.100	A	cm1-vie1.cm.steampowered.com
146.66.155.101	PTR	146-66-155-101.valve.net
146.66.155.101	A	cm2-vie1.cm.steampowered.com
146.66.155.131	PTR	146-66-155-131.valve.net
146.66.155.136	PTR	146-66-155-136.valve.net
146.66.155.145	PTR	146-66-155-145.valve.net
146.66.155.147	PTR	146-66-155-147.valve.net
146.66.155.241	PTR	146-66-155-241.valve.net
146.66.156.1	PTR	gw.sto.valve.net
146.66.156.2	PTR	fw0.sto.valve.net
146.66.156.2	A	sto.valve.net
146.66.156.2	A	sto-1.valve.net
146.66.156.8	PTR	146-66-156-8.valve.net
146.66.157.96	PTR	146-66-156-96.valve.net
146.66.157.98	PTR	146-66-156-98.valve.net
146.66.157.232	PTR	146-66-156-232.valve.net
146.66.157.233	PTR	146-66-156-233.valve.net