Robtex

Up: 210.245.12.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 210.245.14.0/24
Down right: 210.245.15.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.245.14.1	PTR	cache.google.com
210.245.14.12	PTR	cache.google.com
210.245.14.12	A	r1---sn-42u-i5oz.googlevideo.com
210.245.14.12	A	r1.sn-42u-i5oz.googlevideo.com
210.245.14.13	PTR	cache.google.com
210.245.14.13	A	r2.sn-42u-i5oz.gvt1.com
210.245.14.14	PTR	cache.google.com
210.245.14.14	A	r3.sn-42u-i5oz.googlevideo.com
210.245.14.14	A	r3---sn-42u-i5oz.googlevideo.com
210.245.14.16	PTR	cache.google.com
210.245.14.16	A	r5.sn-42u-i5oz.googlevideo.com
210.245.14.16	A	r5---sn-42u-i5oz.googlevideo.com
210.245.14.17	PTR	cache.google.com
210.245.14.17	A	r6---sn-42u-i5oz.googlevideo.com
210.245.14.18	A	r7---sn-42u-i5oz.googlevideo.com
210.245.14.18	A	r7.sn-42u-i5oz.googlevideo.com
210.245.14.18	A	r7.sn-42u-i5oz.gvt1.com
210.245.14.19	A	r8---sn-42u-i5oz.googlevideo.com
210.245.14.32	PTR	cache.google.com
210.245.14.76	A	r1.sn-42u-i5os.gvt1.com
210.245.14.76	A	r1---sn-42u-i5os.googlevideo.com
210.245.14.77	PTR	cache.google.com
210.245.14.77	A	r2.sn-42u-i5os.gvt1.com
210.245.14.77	A	r2---sn-42u-i5os.gvt1.com
210.245.14.78	PTR	cache.google.com
210.245.14.78	A	r3---sn-42u-i5os.googlevideo.com
210.245.14.79	PTR	cache.google.com
210.245.14.79	A	r4---sn-42u-i5os.googlevideo.com
210.245.14.79	A	r4---sn-42u-i5os.gvt1.com
210.245.14.80	PTR	cache.google.com
210.245.14.80	A	r5.sn-42u-i5os.googlevideo.com
210.245.14.80	A	r5---sn-42u-i5os.googlevideo.com
210.245.14.81	PTR	cache.google.com
210.245.14.82	PTR	cache.google.com
210.245.14.82	A	r7---sn-42u-i5os.googlevideo.com
210.245.14.82	A	r7.sn-42u-i5os.googlevideo.com
210.245.14.83	PTR	cache.google.com
210.245.14.83	A	r8---sn-42u-i5os.googlevideo.com
210.245.14.93	PTR	cache.google.com
210.245.14.131	PTR	cache.google.com
210.245.14.137	PTR	cache.google.com
210.245.14.140	A	r1.sn-42u-i5oe.gvt1.com
210.245.14.140	A	r1---sn-42u-i5oe.googlevideo.com
210.245.14.141	PTR	cache.google.com
210.245.14.141	A	r2---sn-42u-i5oe.googlevideo.com
210.245.14.141	A	r2.sn-42u-i5oe.gvt1.com
210.245.14.142	PTR	cache.google.com
210.245.14.142	A	r3.sn-42u-i5oe.gvt1.com
210.245.14.142	A	r3---sn-42u-i5oe.googlevideo.com
210.245.14.143	A	r4---sn-42u-i5oe.gvt1.com
210.245.14.143	A	r4---sn-42u-i5oe.googlevideo.com
210.245.14.144	A	r5---sn-42u-i5oe.googlevideo.com
210.245.14.144	A	r5.sn-42u-i5oe.gvt1.com
210.245.14.145	PTR	cache.google.com
210.245.14.145	A	r6.sn-42u-i5oe.gvt1.com
210.245.14.146	PTR	cache.google.com
210.245.14.146	A	r7---sn-42u-i5oe.googlevideo.com
210.245.14.146	A	r7.sn-42u-i5oe.googlevideo.com
210.245.14.147	A	r8---sn-42u-i5oe.googlevideo.com
210.245.14.196	PTR	cache.google.com
210.245.14.204	PTR	cache.google.com
210.245.14.204	A	r1---sn-42u-i5ol.googlevideo.com
210.245.14.205	PTR	cache.google.com
210.245.14.205	A	r2---sn-42u-i5ol.googlevideo.com
210.245.14.205	A	r2.sn-42u-i5ol.googlevideo.com
210.245.14.206	A	r3.sn-42u-i5ol.gvt1.com
210.245.14.207	PTR	cache.google.com
210.245.14.207	A	r4---sn-42u-i5ol.googlevideo.com
210.245.14.207	A	r4.sn-42u-i5ol.googlevideo.com
210.245.14.208	PTR	cache.google.com
210.245.14.208	A	r5---sn-42u-i5ol.googlevideo.com
210.245.14.208	A	r5.sn-42u-i5ol.gvt1.com
210.245.14.209	PTR	cache.google.com
210.245.14.209	A	r6---sn-42u-i5ol.googlevideo.com
210.245.14.209	A	r6.sn-42u-i5ol.gvt1.com
210.245.14.210	PTR	cache.google.com
210.245.14.210	A	r7.sn-42u-i5ol.googlevideo.com
210.245.14.210	A	r7---sn-42u-i5ol.googlevideo.com
210.245.14.211	PTR	cache.google.com
210.245.14.211	A	r8---sn-42u-i5ol.googlevideo.com
210.245.14.231	PTR	cache.google.com
210.245.15.7	PTR	ras07.fpt.vn
210.245.15.101	A	thienlam.net