Robtex

Up: 172.217.31.0/25
Can't show all results, try to descend to a more specific CIDR
Down left: 172.217.31.0/27
Down right: 172.217.31.32/27
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
172.217.31.0	A+PTR	del03s01-in-f0.1e100.net
172.217.31.1	A+PTR	del03s01-in-f1.1e100.net
172.217.31.2	A+PTR	del03s01-in-f2.1e100.net
172.217.31.3	A+PTR	del03s01-in-f3.1e100.net
172.217.31.4	A+PTR	del03s01-in-f4.1e100.net
172.217.31.4	PTR	hkg12s38-in-f4.1e100.net
172.217.31.5	A+PTR	del03s01-in-f5.1e100.net
172.217.31.5	A	alt51.googlemail.com
172.217.31.9	A	del03s01-in-f9.1e100.net
172.217.31.12	PTR	del03s01-in-f12.1e100.net
172.217.31.12	A	o-o.preferred.rjil-lko6.compress-all.googlezip.net
172.217.31.12	A	o-o.preferred.rjil-lko6.proxy-all.googlezip.net
172.217.31.14	A+PTR	del03s01-in-f14.1e100.net
172.217.31.14	A	o-o.preferred.comstar-ovb1.v2.lscache4.c.youtube.com
172.217.31.14	A	itsupport.in
172.217.31.33	A+PTR	kul09s04-in-f1.1e100.net
172.217.31.33	A	www-sociedademilitar-com-br.cdn.ampproject.org
172.217.31.33	A	www-simplytrinicooking-com.cdn.ampproject.org
172.217.31.34	A+PTR	kul09s04-in-f2.1e100.net
172.217.31.35	A+PTR	kul09s04-in-f3.1e100.net
172.217.31.35	A	tkkwn.com
172.217.31.36	A+PTR	kul09s04-in-f4.1e100.net
172.217.31.40	A+PTR	kul09s04-in-f8.1e100.net
172.217.31.41	A	kul09s04-in-f9.1e100.net
172.217.31.42	A+PTR	kul09s04-in-f10.1e100.net
172.217.31.44	A+PTR	kul09s04-in-f12.1e100.net
172.217.31.45	A+PTR	kul09s04-in-f13.1e100.net
172.217.31.46	PTR	kul09s04-in-f14.1e100.net
172.217.31.46	A	o-o.preferred.tm-kul8.v6.lscache4.c.youtube.com
172.217.31.46	A	o-o.preferred.tm-jhb1.v18.lscache1.c.youtube.com
172.217.31.48	A+PTR	kul09s04-in-f16.1e100.net
172.217.31.51	A+PTR	kul09s04-in-f19.1e100.net
172.217.31.51	A	karaokeperkahwinan.com
172.217.31.51	A	www.daymaycongnghiep.com
172.217.31.54	A+PTR	kul09s04-in-f22.1e100.net