Robtex

Up: 172.217.16.0/25
Can't show all results, try to descend to a more specific CIDR
Down left: 172.217.16.0/27
Down right: 172.217.16.32/27
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
172.217.16.0	A+PTR	mil02s06-in-f0.1e100.net
172.217.16.0	A+PTR	waw02s13-in-f0.1e100.net
172.217.16.1	A+PTR	mil02s06-in-f1.1e100.net
172.217.16.1	A+PTR	waw02s13-in-f1.1e100.net
172.217.16.2	A+PTR	mil02s06-in-f2.1e100.net
172.217.16.2	A+PTR	waw02s13-in-f2.1e100.net
172.217.16.3	A+PTR	mil02s06-in-f3.1e100.net
172.217.16.3	A+PTR	waw02s13-in-f3.1e100.net
172.217.16.4	A+PTR	mil02s06-in-f4.1e100.net
172.217.16.4	A+PTR	waw02s13-in-f4.1e100.net
172.217.16.5	A+PTR	mil02s06-in-f5.1e100.net
172.217.16.5	A+PTR	waw02s13-in-f5.1e100.net
172.217.16.6	A+PTR	mil02s06-in-f6.1e100.net
172.217.16.7	A+PTR	mil02s06-in-f7.1e100.net
172.217.16.7	PTR	waw02s13-in-f7.1e100.net
172.217.16.8	A+PTR	mil02s06-in-f8.1e100.net
172.217.16.9	A+PTR	mil02s06-in-f9.1e100.net
172.217.16.9	A+PTR	waw02s13-in-f9.1e100.net
172.217.16.10	A+PTR	mil02s06-in-f10.1e100.net
172.217.16.10	A+PTR	waw02s13-in-f10.1e100.net
172.217.16.11	A+PTR	mil02s06-in-f11.1e100.net
172.217.16.12	A+PTR	mil02s06-in-f12.1e100.net
172.217.16.13	A+PTR	mil02s06-in-f13.1e100.net
172.217.16.13	A+PTR	waw02s13-in-f13.1e100.net
172.217.16.14	A+PTR	mil02s06-in-f14.1e100.net
172.217.16.14	PTR	waw02s13-in-f14.1e100.net
172.217.16.14	A	verification-2f.com
172.217.16.15	A+PTR	mil02s06-in-f15.1e100.net
172.217.16.15	PTR	waw02s13-in-f15.1e100.net
172.217.16.16	A+PTR	mil02s06-in-f16.1e100.net
172.217.16.16	A+PTR	waw02s13-in-f16.1e100.net
172.217.16.17	A+PTR	mil02s06-in-f17.1e100.net
172.217.16.18	A+PTR	mil02s06-in-f18.1e100.net
172.217.16.19	A+PTR	mil02s06-in-f19.1e100.net
172.217.16.19	A	prumitub.com
172.217.16.19	A	cryptohuckers.club
172.217.16.20	A+PTR	mil02s06-in-f20.1e100.net
172.217.16.20	PTR	waw02s13-in-f20.1e100.net
172.217.16.21	A+PTR	mil02s06-in-f21.1e100.net
172.217.16.22	A+PTR	mil02s06-in-f22.1e100.net
172.217.16.22	A+PTR	waw02s13-in-f22.1e100.net
172.217.16.23	A+PTR	mil02s06-in-f23.1e100.net
172.217.16.23	A+PTR	waw02s13-in-f23.1e100.net
172.217.16.24	A+PTR	mil02s06-in-f24.1e100.net
172.217.16.25	A+PTR	mil02s06-in-f25.1e100.net
172.217.16.26	A+PTR	mil02s06-in-f26.1e100.net
172.217.16.27	A+PTR	mil02s06-in-f27.1e100.net
172.217.16.27	PTR	waw02s13-in-f27.1e100.net
172.217.16.28	A+PTR	mil02s06-in-f28.1e100.net
172.217.16.29	A+PTR	mil02s06-in-f29.1e100.net
172.217.16.30	A+PTR	mil02s06-in-f30.1e100.net
172.217.16.31	A+PTR	mil02s06-in-f31.1e100.net
172.217.16.32	A+PTR	muc03s08-in-f32.1e100.net
172.217.16.32	PTR	waw02s14-in-f0.1e100.net
172.217.16.32	A	muc03s08-in-f0.1e100.net
172.217.16.33	A+PTR	muc03s08-in-f33.1e100.net
172.217.16.33	A+PTR	waw02s14-in-f1.1e100.net
172.217.16.33	A	www.maynuocnongnangluongmattroitot.blogspot.ru
172.217.16.34	A+PTR	muc03s08-in-f34.1e100.net
172.217.16.34	A+PTR	waw02s14-in-f2.1e100.net
172.217.16.35	A+PTR	muc03s08-in-f35.1e100.net
172.217.16.35	A+PTR	waw02s14-in-f3.1e100.net
172.217.16.36	A+PTR	muc03s08-in-f36.1e100.net
172.217.16.36	A+PTR	waw02s14-in-f4.1e100.net
172.217.16.37	A+PTR	muc03s08-in-f37.1e100.net
172.217.16.37	A+PTR	waw02s14-in-f5.1e100.net
172.217.16.38	A+PTR	muc03s08-in-f38.1e100.net
172.217.16.39	A+PTR	muc03s08-in-f39.1e100.net
172.217.16.40	A+PTR	muc03s08-in-f40.1e100.net
172.217.16.40	A+PTR	waw02s14-in-f8.1e100.net
172.217.16.41	A+PTR	muc03s08-in-f41.1e100.net
172.217.16.42	A+PTR	muc03s08-in-f42.1e100.net
172.217.16.42	A+PTR	waw02s14-in-f10.1e100.net
172.217.16.43	A+PTR	muc03s08-in-f43.1e100.net
172.217.16.43	PTR	waw02s14-in-f11.1e100.net
172.217.16.44	A+PTR	muc03s08-in-f44.1e100.net
172.217.16.44	A+PTR	waw02s14-in-f12.1e100.net
172.217.16.45	A+PTR	muc03s08-in-f45.1e100.net
172.217.16.46	PTR	muc03s08-in-f46.1e100.net
172.217.16.46	A+PTR	waw02s14-in-f14.1e100.net
172.217.16.46	A	www.quantumbitcoinproject.org
172.217.16.47	A+PTR	muc03s08-in-f47.1e100.net
172.217.16.48	A+PTR	muc03s08-in-f48.1e100.net
172.217.16.48	A+PTR	waw02s14-in-f16.1e100.net
172.217.16.48	A	muc03s08-in-f16.1e100.net
172.217.16.49	A+PTR	muc03s08-in-f49.1e100.net
172.217.16.49	A	muc03s08-in-f17.1e100.net
172.217.16.50	A+PTR	muc03s08-in-f50.1e100.net
172.217.16.50	A+PTR	waw02s14-in-f18.1e100.net
172.217.16.51	A+PTR	muc03s08-in-f51.1e100.net
172.217.16.51	A+PTR	waw02s14-in-f19.1e100.net
172.217.16.51	A	caesarscircuit.com
172.217.16.52	A+PTR	muc03s08-in-f52.1e100.net
172.217.16.52	PTR	waw02s14-in-f20.1e100.net
172.217.16.52	A	muc03s08-in-f20.1e100.net
172.217.16.53	A+PTR	muc03s08-in-f53.1e100.net
172.217.16.53	A	muc03s08-in-f21.1e100.net
172.217.16.54	A+PTR	muc03s08-in-f54.1e100.net
172.217.16.54	A+PTR	waw02s14-in-f22.1e100.net
172.217.16.54	A	muc03s08-in-f22.1e100.net
172.217.16.55	A+PTR	muc03s08-in-f55.1e100.net
172.217.16.55	A	muc03s08-in-f23.1e100.net
172.217.16.56	A+PTR	muc03s08-in-f56.1e100.net
172.217.16.57	A+PTR	muc03s08-in-f57.1e100.net
172.217.16.58	A+PTR	muc03s08-in-f58.1e100.net
172.217.16.58	A+PTR	waw02s14-in-f26.1e100.net
172.217.16.59	A+PTR	muc03s08-in-f59.1e100.net
172.217.16.59	PTR	waw02s14-in-f27.1e100.net
172.217.16.60	A+PTR	muc03s08-in-f60.1e100.net
172.217.16.61	A+PTR	muc03s08-in-f61.1e100.net
172.217.16.61	A	muc03s08-in-f29.1e100.net
172.217.16.62	A+PTR	muc03s08-in-f62.1e100.net
172.217.16.62	A+PTR	waw02s14-in-f30.1e100.net
172.217.16.63	A+PTR	muc03s08-in-f63.1e100.net