Robtex

Up: 129.253.52.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 129.253.54.0/24
Down right: 129.253.55.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
129.253.54.24	A+PTR	usc2.wdc.com
129.253.54.112	A+PTR	webmail.wdc.com
129.253.54.112	A+PTR	webmail0.wdc.com
129.253.55.5	A	uim-op-b2bdmz.wdc.com
129.253.55.20	A+PTR	wdcns01.wdc.com
129.253.55.20	PTR	wdcns02.wdc.com
129.253.55.20	A+PTR	wdscns01.wdc.com
129.253.55.21	A+PTR	extns02.wdc.com
129.253.55.21	A+PTR	wdcns02.wdc.com
129.253.55.21	PTR	wdscns02.wdc.com
129.253.55.23	A+PTR	ftpext.wdc.com
129.253.55.31	A+PTR	fsc.wdc.com
129.253.55.32	A+PTR	netapp.wdc.com
129.253.55.33	A+PTR	bp.wdc.com
129.253.55.34	A	branded.wdc.com
129.253.55.36	A	extranet.wdc.com
129.253.55.41	PTR	wdselfsvc.wdc.com
129.253.55.42	A+PTR	wdmail02.wdc.com
129.253.55.42	A	wdscspam3.wdc.com
129.253.55.43	A+PTR	wdmail01.wdc.com
129.253.55.43	A	wdscspam2.wdc.com
129.253.55.44	A+PTR	webmail1.wdc.com
129.253.55.45	A	webmail2.wdc.com
129.253.55.52	A	wdphotowalk.com
129.253.55.52	A	www.wdphotowalk.com
129.253.55.54	A+PTR	wdcapital.com
129.253.55.54	PTR	wdcapitalglobal.com
129.253.55.54	PTR	westerndigitalcapital.com
129.253.55.56	PTR	mybooxx.at
129.253.55.56	PTR	mybooxx.be
129.253.55.56	PTR	wdc.by
129.253.55.63	A	wdb2bftp01.wdc.com
129.253.55.70	A	ctools.wdc.com
129.253.55.73	A+PTR	hpsupport.wdc.com
129.253.55.73	A+PTR	warrantyupgrade.wdc.com
129.253.55.73	A+PTR	wdpartners.wdc.com
129.253.55.76	A	wdfiles.wdc.com
129.253.55.86	A	wdpartnersummit.com
129.253.55.86	A	wdsummit.com
129.253.55.88	PTR	wdbrand.com
129.253.55.88	PTR	wdcloud.jp
129.253.55.88	PTR	twitter.wd.com
129.253.55.91	A	t13.org
129.253.55.91	A	www.t13.org
129.253.55.92	A	wdguardian.com
129.253.55.93	PTR	wdpromotions.com
129.253.55.93	PTR	www.wdpromotions.com
129.253.55.93	A	wdpromotion.com
129.253.55.94	A	wdsweepstakes.com
129.253.55.104	A	westerndigital.mobi
129.253.55.110	PTR	sipus.wdc.com
129.253.55.111	A+PTR	mail.wdc.com
129.253.55.111	PTR	webconus.wdc.com
129.253.55.113	A	esb.wdc.com
129.253.55.140	A	*.arkeia.ch
129.253.55.140	A	*.arkeia.fr
129.253.55.140	A	www.arkeia.com
129.253.55.146	A	smartware.wdc.com
129.253.55.151	A+PTR	wdt10orgm.wdc.com
129.253.55.151	A	t10.org
129.253.55.151	A	www.t10.org
129.253.55.167	A	wduniversity.com
129.253.55.171	PTR	wdtvlive.com
129.253.55.171	PTR	wdlabs.wd.com
129.253.55.171	A+PTR	www.wdbrand.com
129.253.55.181	PTR	wdbrand.com
129.253.55.181	PTR	wdtvlive.com
129.253.55.181	PTR	wdcloud.jp
129.253.55.182	PTR	wdbrand.com
129.253.55.182	PTR	wdtvlive.com
129.253.55.182	PTR	wdcloud.jp
129.253.55.183	PTR	wdbrand.com
129.253.55.183	PTR	wdtvlive.com
129.253.55.183	PTR	wdcloud.jp
129.253.55.195	A	wdselfsvc.wdc.com
129.253.55.203	PTR	support.wdc.com
129.253.55.211	A	websupport.wdc.com
129.253.55.212	A	websupport.wdc.com
129.253.55.225	A	vikingaviationpub.com
129.253.55.225	A	rpus.wdc.com
129.253.55.226	A	sipus.wdc.com
129.253.55.227	A	webconus.wdc.com
129.253.55.230	A+PTR	usc1.wdc.com