Robtex

Up: 72.52.6.0/25
Can't show all results, try to descend to a more specific CIDR
Down left: 72.52.6.0/27
Down right: 72.52.6.32/27
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.52.6.0	PTR	unknown.prolexic.com
72.52.6.1	PTR	unknown.prolexic.com
72.52.6.2	PTR	unknown.prolexic.com
72.52.6.3	PTR	a72-52-6-3.deploy.static.akamaitechnologies.com
72.52.6.4	PTR	unknown.prolexic.com
72.52.6.4	A	mediago.sony.com
72.52.6.5	PTR	unknown.prolexic.com
72.52.6.6	PTR	unknown.prolexic.com
72.52.6.7	PTR	unknown.prolexic.com
72.52.6.8	PTR	unknown.prolexic.com
72.52.6.9	PTR	unknown.prolexic.com
72.52.6.10	PTR	a72-52-6-10.deploy.static.akamaitechnologies.com
72.52.6.10	A	support.pixim.com
72.52.6.10	A	postmaster.pixim.com
72.52.6.11	PTR	unknown.prolexic.com
72.52.6.12	PTR	unknown.prolexic.com
72.52.6.13	PTR	unknown.prolexic.com
72.52.6.14	PTR	unknown.prolexic.com
72.52.6.15	PTR	unknown.prolexic.com
72.52.6.16	PTR	unknown.prolexic.com
72.52.6.17	PTR	unknown.prolexic.com
72.52.6.18	PTR	unknown.prolexic.com
72.52.6.19	PTR	unknown.prolexic.com
72.52.6.20	PTR	unknown.prolexic.com
72.52.6.25	PTR	a72-52-6-25.deploy.static.akamaitechnologies.com
72.52.6.25	A	playstation.greatnessawaits.com
72.52.6.25	A	deadmundsquest.com
72.52.6.26	PTR	a72-52-6-26.deploy.static.akamaitechnologies.com
72.52.6.26	A	www.ps3.com
72.52.6.26	A	playstationmove.com
72.52.6.27	PTR	unknown.prolexic.com
72.52.6.27	A	giftregistry.boscovs.com
72.52.6.30	PTR	unknown.prolexic.com
72.52.6.31	PTR	a72-52-6-31.deploy.static.akamaitechnologies.com
72.52.6.31	A	www.infamous-thegame.com
72.52.6.31	A	spartansstandtall.com
72.52.6.32	PTR	unknown.prolexic.com
72.52.6.34	PTR	unknown.prolexic.com
72.52.6.34	A	mx.playstation.com
72.52.6.36	PTR	unknown.prolexic.com
72.52.6.37	PTR	unknown.prolexic.com
72.52.6.38	PTR	unknown.prolexic.com
72.52.6.42	PTR	unknown.prolexic.com
72.52.6.42	A	b2b.sony.com
72.52.6.45	PTR	unknown.prolexic.com
72.52.6.45	A	pro.sony.com
72.52.6.46	PTR	unknown.prolexic.com
72.52.6.46	A	dealersource.sel.sony.com
72.52.6.47	PTR	unknown.prolexic.com
72.52.6.47	A	www.myriteaid.com
72.52.6.48	PTR	a72-52-6-48.deploy.static.akamaitechnologies.com
72.52.6.54	PTR	unknown.prolexic.com
72.52.6.57	PTR	unknown.prolexic.com
72.52.6.57	A	sonyrewards.com
72.52.6.57	A	joinsonyrewards.com
72.52.6.59	PTR	unknown.prolexic.com
72.52.6.59	A	vaio.co.uk
72.52.6.59	A	vaio.fr