Robtex

Up: 27.71.244.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 27.71.246.0/24
Down right: 27.71.247.0/24

IP	Type	Hostname
27.71.246.76	PTR	localhost
27.71.246.76	A	r1.sn-8pxuuxa-2m0e7.googlevideo.com
27.71.246.76	A	r1.sn-8pxuuxa-2m0e7.gvt1.com
27.71.246.77	PTR	localhost
27.71.246.77	A	r2.sn-8pxuuxa-2m0e7.gvt1.com
27.71.246.140	PTR	localhost
27.71.246.140	A	r1.sn-8pxuuxa-nbozd.googlevideo.com
27.71.246.140	A	r1.sn-8pxuuxa-nbozd.gvt1.com
27.71.246.141	PTR	localhost
27.71.246.141	A	r2.sn-8pxuuxa-nbozd.googlevideo.com
27.71.246.141	A	r2.sn-8pxuuxa-nbozd.gvt1.com
27.71.246.142	PTR	localhost
27.71.246.142	A	r3.sn-8pxuuxa-nbozd.googlevideo.com
27.71.246.143	PTR	localhost
27.71.246.143	A	r4.sn-8pxuuxa-nbozd.googlevideo.com
27.71.246.204	PTR	localhost
27.71.246.204	A	r1.sn-8pxuuxa-nbozk.googlevideo.com
27.71.246.205	A	r2.sn-8pxuuxa-nbozk.googlevideo.com
27.71.247.12	PTR	localhost
27.71.247.12	A	r1.sn-8pxuuxa-8j5el.googlevideo.com
27.71.247.13	PTR	localhost
27.71.247.13	A	r2.sn-8pxuuxa-8j5el.googlevideo.com
27.71.247.76	PTR	localhost
27.71.247.76	A	r1.sn-8pxuuxa-8j5es.gvt1.com
27.71.247.78	PTR	localhost
27.71.247.78	A	r3.sn-8pxuuxa-8j5es.gvt1.com
27.71.247.141	PTR	localhost
27.71.247.141	A	r2.sn-8pxuuxa-8jas.googlevideo.com
27.71.247.204	PTR	localhost
27.71.247.204	A	r1.sn-8pxuuxa-8pp6.gvt1.com
27.71.247.204	A	r1.sn-8pxuuxa-8pp6.googlevideo.com
27.71.247.205	PTR	localhost
27.71.247.205	A	r2.sn-8pxuuxa-8pp6.googlevideo.com
27.71.247.206	PTR	localhost
27.71.247.206	A	r3.sn-8pxuuxa-8pp6.gvt1.com
27.71.247.206	A	r3.sn-8pxuuxa-8pp6.googlevideo.com
27.71.247.207	PTR	localhost
27.71.247.207	A	r4.sn-8pxuuxa-8pp6.gvt1.com