Robtex

Up: 83.139.66.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 83.139.67.0/25
Down right: 83.139.67.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
83.139.67.6	PTR	cache.google.com
83.139.67.7	PTR	cache.google.com
83.139.67.11	PTR	cache.google.com
83.139.67.12	A	r1.sn-8p2oxu-15bl.gvt1.com
83.139.67.12	A	r1---sn-8p2oxu-15bl.googlevideo.com
83.139.67.12	A	r1.sn-8p2oxu-15bl.googlevideo.com
83.139.67.13	PTR	dh67-13.xnet.hr
83.139.67.13	A	r2.sn-8p2oxu-15bl.gvt1.com
83.139.67.13	A	r2---sn-8p2oxu-15bl.googlevideo.com
83.139.67.14	PTR	dh67-14.xnet.hr
83.139.67.14	A	r3---sn-8p2oxu-15bl.googlevideo.com
83.139.67.14	A	r3.sn-8p2oxu-15bl.googlevideo.com
83.139.67.15	A	r4.sn-8p2oxu-15bl.googlevideo.com
83.139.67.20	PTR	cache.google.com
83.139.67.24	PTR	cache.google.com
83.139.67.27	PTR	dh67-27.xnet.hr
83.139.67.29	PTR	cache.google.com
83.139.67.39	PTR	cache.google.com
83.139.67.40	PTR	cache.google.com
83.139.67.41	PTR	cache.google.com
83.139.67.48	PTR	cache.google.com
83.139.67.51	PTR	cache.google.com
83.139.67.52	PTR	cache.google.com
83.139.67.53	PTR	cache.google.com
83.139.67.56	PTR	cache.google.com
83.139.67.57	PTR	dh67-57.xnet.hr
83.139.67.61	PTR	cache.google.com
83.139.67.63	PTR	dh67-63.xnet.hr
83.139.67.69	PTR	dh67-69.xnet.hr
83.139.67.72	PTR	dh67-72.xnet.hr
83.139.67.74	PTR	dh67-74.xnet.hr
83.139.67.76	PTR	dh67-76.xnet.hr
83.139.67.76	A	r1---sn-8p2oxu-15be.googlevideo.com
83.139.67.76	A	r1.sn-8p2oxu-15be.c.pack.google.com
83.139.67.77	PTR	dh67-77.xnet.hr
83.139.67.77	A	r2---sn-8p2oxu-15be.googlevideo.com
83.139.67.78	PTR	dh67-78.xnet.hr
83.139.67.78	A	r3.sn-8p2oxu-15be.gvt1.com
83.139.67.78	A	r3.sn-8p2oxu-15be.c.pack.google.com
83.139.67.79	A	r4.sn-8p2oxu-15be.googlevideo.com
83.139.67.81	PTR	dh67-81.xnet.hr
83.139.67.82	PTR	dh67-82.xnet.hr
83.139.67.86	PTR	dh67-86.xnet.hr
83.139.67.88	PTR	dh67-88.xnet.hr
83.139.67.89	PTR	dh67-89.xnet.hr
83.139.67.90	PTR	dh67-90.xnet.hr
83.139.67.95	PTR	dh67-95.xnet.hr
83.139.67.103	PTR	dh67-103.xnet.hr
83.139.67.104	PTR	dh67-104.xnet.hr
83.139.67.107	PTR	dh67-107.xnet.hr
83.139.67.110	PTR	dh67-110.xnet.hr
83.139.67.115	PTR	dh67-115.xnet.hr
83.139.67.117	PTR	dh67-117.xnet.hr
83.139.67.120	PTR	dh67-120.xnet.hr
83.139.67.121	PTR	dh67-121.xnet.hr
83.139.67.133	PTR	dh67-133.xnet.hr
83.139.67.136	PTR	dh67-136.xnet.hr
83.139.67.143	PTR	dh67-143.xnet.hr
83.139.67.145	PTR	dh67-145.xnet.hr
83.139.67.145	A	external.fzag1-1.fna.fbcdn.net
83.139.67.145	A	scontent.fzag1-1.fna.fbcdn.net
83.139.67.146	PTR	dh67-146.xnet.hr
83.139.67.146	A	video.fzag1-1.fna.fbcdn.net
83.139.67.150	PTR	dh67-150.xnet.hr
83.139.67.156	PTR	dh67-156.xnet.hr
83.139.67.160	PTR	dh67-160.xnet.hr
83.139.67.160	A	instagram.fzag1-1.fna.fbcdn.net
83.139.67.161	PTR	dh67-161.xnet.hr
83.139.67.161	A	media.fzag1-1.fna.whatsapp.net
83.139.67.162	PTR	dh67-162.xnet.hr
83.139.67.162	A	z-p3-scontent.fzag1-1.fna.fbcdn.net
83.139.67.164	PTR	dh67-164.xnet.hr
83.139.67.165	PTR	dh67-165.xnet.hr
83.139.67.167	PTR	dh67-167.xnet.hr
83.139.67.175	PTR	dh67-175.xnet.hr
83.139.67.180	PTR	dh67-180.xnet.hr
83.139.67.188	PTR	dh67-188.xnet.hr
83.139.67.189	PTR	dh67-189.xnet.hr
83.139.67.190	PTR	dh67-190.xnet.hr
83.139.67.192	PTR	dh67-192.xnet.hr
83.139.67.193	PTR	dh67-193.xnet.hr
83.139.67.199	PTR	dh67-199.xnet.hr
83.139.67.201	PTR	dh67-201.xnet.hr
83.139.67.207	PTR	dh67-207.xnet.hr
83.139.67.208	PTR	dh67-208.xnet.hr
83.139.67.209	PTR	dh67-209.xnet.hr
83.139.67.214	PTR	dh67-214.xnet.hr
83.139.67.215	PTR	dh67-215.xnet.hr
83.139.67.216	PTR	dh67-216.xnet.hr
83.139.67.219	PTR	dh67-219.xnet.hr
83.139.67.221	PTR	dh67-221.xnet.hr
83.139.67.223	PTR	dh67-223.xnet.hr
83.139.67.226	PTR	dh67-226.xnet.hr
83.139.67.227	PTR	dh67-227.xnet.hr
83.139.67.234	PTR	dh67-234.xnet.hr
83.139.67.235	PTR	dh67-235.xnet.hr
83.139.67.245	PTR	dh67-245.xnet.hr
83.139.67.246	PTR	dh67-246.xnet.hr
83.139.67.248	PTR	dh67-248.xnet.hr
83.139.67.250	PTR	dh67-250.xnet.hr
83.139.67.252	PTR	dh67-252.xnet.hr
83.139.67.253	PTR	dh67-253.xnet.hr
83.139.67.254	PTR	dh67-254.xnet.hr