Robtex

Up: 172.217.30.0/25
Can't show all results, try to descend to a more specific CIDR
Down left: 172.217.30.64/27
Down right: 172.217.30.96/27
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
172.217.30.65	A+PTR	gru06s34-in-f1.1e100.net
172.217.30.65	A	googleblog.com
172.217.30.65	A	colunapontodevista.com
172.217.30.66	A+PTR	gru06s34-in-f2.1e100.net
172.217.30.66	A	partnerad.l.google.com
172.217.30.66	A	pagead.l.google.com
172.217.30.67	PTR	gru06s34-in-f3.1e100.net
172.217.30.67	A	p4-edqmeiaej4rek-b4dw4cz6jaslhyvf-if-v6exp3-v4.metric.gstatic.com
172.217.30.67	A	p4-c3p53dflcwfn6-e6qx6lliij3xzct5-if-v6exp3-v4.metric.gstatic.com
172.217.30.68	PTR	gru06s34-in-f4.1e100.net
172.217.30.68	A	google.com.ps
172.217.30.68	A	googlescience.com.br
172.217.30.69	A+PTR	gru06s34-in-f5.1e100.net
172.217.30.69	A	g-mail.com.ph
172.217.30.69	A	gbook.de
172.217.30.70	A+PTR	gru06s34-in-f6.1e100.net
172.217.30.70	A	s0-2mdn-net.l.google.com
172.217.30.71	A+PTR	gru06s34-in-f7.1e100.net
172.217.30.72	A+PTR	gru06s34-in-f8.1e100.net
172.217.30.73	PTR	gru06s34-in-f9.1e100.net
172.217.30.73	A	blogspot.fi
172.217.30.73	A	blogspot.nl
172.217.30.74	A+PTR	gru06s34-in-f10.1e100.net
172.217.30.74	A	565449900-lucasfilm.clients6.google.com
172.217.30.74	A	firebaseabt-pa.clients6.google.com
172.217.30.78	PTR	gru06s34-in-f14.1e100.net
172.217.30.78	A	catango.biz
172.217.30.78	A	d-2708775684381742520.ampproject.net
172.217.30.79	A+PTR	gru06s34-in-f15.1e100.net
172.217.30.80	A+PTR	gru06s34-in-f16.1e100.net
172.217.30.80	A	storage.l.google.com
172.217.30.81	A	sliceofml.withgoogle.com
172.217.30.81	A	partnersrewards.withgoogle.com
172.217.30.81	A	www.dlpcoachingdashboard.withgoogle.com
172.217.30.82	PTR	gru06s34-in-f18.1e100.net
172.217.30.82	A	p4-bzrinoetnovty-2y5jr3xcmzcyfmsh-783615-i1-v6exp3.v4.metric.gstatic.com
172.217.30.82	A	p4-gv7wjubhnjhew-fffkzuzj2mo56vzg-586722-i2-v6exp3.v4.metric.gstatic.com
172.217.30.83	PTR	gru06s34-in-f19.1e100.net
172.217.30.83	A	pub-5350539711074110.afd.ghs.google.com
172.217.30.83	A	tringungay.com
172.217.30.84	PTR	gru06s34-in-f20.1e100.net
172.217.30.84	A	perpule-1248.appspot.com
172.217.30.84	A	jonnyfavorite3.appspot.com
172.217.30.85	A+PTR	gru06s34-in-f21.1e100.net
172.217.30.86	A+PTR	gru06s34-in-f22.1e100.net
172.217.30.86	A	ytimg-edge-static.l.google.com
172.217.30.89	A+PTR	gru06s34-in-f25.1e100.net
172.217.30.94	A+PTR	gru06s34-in-f30.1e100.net
172.217.30.97	A+PTR	gru06s35-in-f1.1e100.net
172.217.30.97	A	geo3.ggpht.com
172.217.30.97	A	www-techworm-net.cdn.ampproject.org
172.217.30.98	A+PTR	gru06s35-in-f2.1e100.net
172.217.30.98	A	pagead.l.google.com
172.217.30.99	PTR	gru06s35-in-f3.1e100.net
172.217.30.99	A	ww.google.com.ph
172.217.30.99	A	xn--flw351e.cn
172.217.30.100	PTR	gru06s35-in-f4.1e100.net
172.217.30.100	A	googlescholar.com
172.217.30.100	A	google.cc
172.217.30.101	PTR	gru06s35-in-f5.1e100.net
172.217.30.101	A	alt0.googlemail.com
172.217.30.101	A	my-g-mail.de
172.217.30.102	A+PTR	gru06s35-in-f6.1e100.net
172.217.30.104	A+PTR	gru06s35-in-f8.1e100.net
172.217.30.105	PTR	gru06s35-in-f9.1e100.net
172.217.30.105	A	blogspot.bg
172.217.30.105	A	blogspot.cl
172.217.30.106	A+PTR	gru06s35-in-f10.1e100.net
172.217.30.106	A	fibermanagement-pa.clients6.google.com
172.217.30.106	A	bigquery-sq.clients6.google.com
172.217.30.108	A+PTR	gru06s35-in-f12.1e100.net
172.217.30.110	PTR	gru06s35-in-f14.1e100.net
172.217.30.110	A	d-3728171603427848200.ampproject.net
172.217.30.110	A	d-362054964384613121.ampproject.net
172.217.30.112	A	yvestumor.com
172.217.30.113	A+PTR	gru06s35-in-f17.1e100.net
172.217.30.113	A	coral.withgoogle.com
172.217.30.113	A	www.forjapan.withgoogle.com
172.217.30.114	PTR	gru06s35-in-f18.1e100.net
172.217.30.114	A	p5-sekl5aj3bnp2g-65yvlt6jcw2uznux-912624-i1-v6exp3.ds.metric.gstatic.com
172.217.30.114	A	p4-heb5wphujzkgs-ualeecp2ebqoujn3-169141-i2-v6exp3.ds.metric.gstatic.com
172.217.30.115	PTR	gru06s35-in-f19.1e100.net
172.217.30.115	A	evav6d.feedproxy.ghs.google.com
172.217.30.115	A	ebhabbo.com
172.217.30.116	PTR	gru06s35-in-f20.1e100.net
172.217.30.116	A	positronews.appspot.com
172.217.30.116	A	www.paulatorres-207016.appspot.com
172.217.30.118	A+PTR	gru06s35-in-f22.1e100.net
172.217.30.118	A	ytimg-edge-static.l.google.com
172.217.30.127	A+PTR	gru06s35-in-f31.1e100.net