Robtex

Up: 70.32.156.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 70.32.158.0/24
Down right: 70.32.159.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
70.32.158.14	PTR	14.158.32.70.bc.googleusercontent.com
70.32.158.130	PTR	vpn.admob.com
70.32.158.131	PTR	131.158.32.70.bc.googleusercontent.com
70.32.158.131	A	intranet.admob.com
70.32.158.133	A+PTR	hydrogen.admob.com
70.32.158.134	PTR	134.158.32.70.bc.googleusercontent.com
70.32.158.134	A	webmail.admob.com
70.32.158.135	A	smtp.admob.com
70.32.159.0	A+PTR	0.159.32.70.acc.googleusercontent.com
70.32.159.1	PTR	1.159.32.70.acc.googleusercontent.com
70.32.159.1	A	wn-in-f1.1e100.net
70.32.159.1	A	iv-in-f1.1e100.net
70.32.159.2	PTR	2.159.32.70.acc.googleusercontent.com
70.32.159.2	A	ranch.api.slide.com
70.32.159.2	A	*.api.slide.com
70.32.159.5	A+PTR	5.159.32.70.acc.googleusercontent.com
70.32.159.8	PTR	8.159.32.70.acc.googleusercontent.com
70.32.159.9	PTR	9.159.32.70.acc.googleusercontent.com
70.32.159.14	PTR	14.159.32.70.acc.googleusercontent.com
70.32.159.18	PTR	18.159.32.70.acc.googleusercontent.com
70.32.159.31	PTR	31.159.32.70.acc.googleusercontent.com
70.32.159.41	PTR	41.159.32.70.acc.googleusercontent.com
70.32.159.57	A+PTR	57.159.32.70.acc.googleusercontent.com
70.32.159.131	PTR	131.159.32.70.acc.googleusercontent.com
70.32.159.161	PTR	161.159.32.70.acc.googleusercontent.com
70.32.159.182	PTR	182.159.32.70.acc.googleusercontent.com
70.32.159.196	PTR	196.159.32.70.acc.googleusercontent.com
70.32.159.200	PTR	200.159.32.70.acc.googleusercontent.com
70.32.159.206	PTR	206.159.32.70.acc.googleusercontent.com
70.32.159.241	PTR	241.159.32.70.acc.googleusercontent.com
70.32.159.255	PTR	255.159.32.70.acc.googleusercontent.com