Robtex

Up: 129.42.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 129.42.0.0/19
Down right: 129.42.32.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
129.42.1.10	A	sasvpn.raleigh.ibm.com
129.42.1.111	A	p1.splitter.www.ibm.com
129.42.1.200	A+PTR	ns1.events.ihost.com
129.42.1.200	A	ns1.events.ibm.com
129.42.2.1	PTR	1.2.42.129.events.ihost.com
129.42.2.9	A+PTR	mail.p1.events.ihost.com
129.42.2.21	A	mailout.p1.events.ihost.com
129.42.2.30	A	mailout.p1.events.ihost.com
129.42.2.54	A	mailin.p1.events.ihost.com
129.42.3.10	A	sasvpn.boulder.ibm.com
129.42.3.111	A	p3.splitter.www.ibm.com
129.42.3.200	A+PTR	ns.events.ihost.com
129.42.3.200	A	ns2.events.ibm.com
129.42.4.9	A+PTR	mail.p3.events.ihost.com
129.42.5.111	A	p2.splitter.www.ibm.com
129.42.5.200	PTR	ns2.events.ihost.com
129.42.6.9	A+PTR	mail.p2.events.ihost.com
129.42.10.200	A+PTR	ns2.events.ihost.com
129.42.11.18	A+PTR	mail.p5.events.ihost.com
129.42.16.103	A	tm1.cz
129.42.16.106	A	lenovo-mail.com
129.42.16.106	A	www.lenovo.com.es
129.42.16.106	A	lenovo.com.es
129.42.17.106	A	www.lenovo.com.es
129.42.17.106	A	lenovo.com.es
129.42.18.16	A	www-cdt.masters.com
129.42.18.17	A	nhub.events.ibm.com
129.42.18.30	A	masters.com
129.42.18.31	A	wimbledon.com
129.42.18.106	A	www.lenovo.com.es
129.42.18.106	A	lenovo.com.es
129.42.19.16	A	nhub.events.ibm.com
129.42.19.18	A	usopen.org
129.42.19.20	A	masters.com
129.42.19.26	A	cmlaac.cs186.net
129.42.20.23	A	masters.com
129.42.20.23	A	cmmast.events.ibm.com.akadns.net
129.42.20.33	A	wimbledon.com
129.42.21.22	A	usopen.org
129.42.21.25	A	masters.com
129.42.21.25	A	masters.org
129.42.21.26	A	nhub.events.ibm.com
129.42.26.132	A	www-930.ibm.com
129.42.26.133	A	www-947.events.ibm.com
129.42.26.133	A	www-947.ibm.com
129.42.26.142	A	www-935.ibm.com
129.42.26.185	A	www-961.events.ibm.com
129.42.26.212	PTR	www.ibm.com
129.42.26.218	A	p1.m.ibm.com.cs186.net
129.42.26.224	A	www-945.events.ibm.com
129.42.26.224	A	www-945.ibm.com
129.42.26.227	A	p1.www-946.events.ibm.com
129.42.26.242	A	masters.com
129.42.26.244	A	wimbledon.com
129.42.34.133	A	www-947.events.ibm.com
129.42.34.212	PTR	www.ibm.com
129.42.38.1	PTR	redirect.www.ibm.com
129.42.38.1	A	puresystem.us
129.42.38.1	A	micromuse.nl
129.42.38.2	PTR	redirect.w3.ibm.com
129.42.38.5	A	masters.com
129.42.38.5	A	wimbledon.com
129.42.38.5	A	usopen.org
129.42.42.131	A	www-304.events.ibm.com
129.42.42.133	A	www-947.events.ibm.com
129.42.42.133	A	www-947.ibm.com
129.42.42.142	A	www-935.ibm.com
129.42.42.142	A	www-935.events.ibm.com
129.42.42.185	A	www-961.events.ibm.com
129.42.42.205	A	ausopen.com.au
129.42.42.212	PTR	www.ibm.com
129.42.42.218	A	p3.m.ibm.com
129.42.42.224	A	www-945.events.ibm.com
129.42.42.224	A	www-945.ibm.com
129.42.42.242	A	masters.com
129.42.42.243	A	usopen.org
129.42.50.131	A	www-304.events.ibm.com
129.42.50.142	A	www-935.ibm.com
129.42.50.142	A	www-935.events.ibm.com
129.42.50.185	A	www-961.events.ibm.com
129.42.50.224	A	www-945.events.ibm.com
129.42.50.224	A	www-945.ibm.com
129.42.54.140	A	www.collaborationjam.com
129.42.54.140	A	jamext.wat.cs186.net
129.42.54.165	A	www.australianopen.org
129.42.54.165	A	cmauso-odd.wat.cs186.net
129.42.56.2	A	ac0820be0.events.ihost.com
129.42.56.4	A	ac0821ae0.events.ihost.com
129.42.56.97	A	ns.cs186.com
129.42.56.131	A	p1.www.ibm.com
129.42.56.138	A	m.ibm.com.cs186.net
129.42.56.140	A	www.collaborationjam.com
129.42.56.140	A	jamext.wat.cs186.net
129.42.56.165	A	cmauso-odd.wat.cs186.net
129.42.56.189	A	stg-edge.events.ibm.com
129.42.56.207	A	api.ibm.com
129.42.56.212	PTR	www.ibm.com
129.42.56.216	A	zhoubin.tk
129.42.56.231	A	ts-api.ibm.com.cs186.net
129.42.58.131	A	p2.www.ibm.com
129.42.58.135	A	wwwstage-ext.ibm.com.cs186.net
129.42.58.135	A	wwwstage.ibm.com
129.42.58.189	A	stg-edge.events.ibm.com
129.42.58.212	PTR	www.ibm.com
129.42.58.216	A	www.ibm.ge
129.42.60.4	A+PTR	gc0320ae0.events.ihost.com
129.42.60.10	A	gc0322ae0.events.ihost.com
129.42.60.30	A	vonhope.com
129.42.60.111	A	3y3.cn
129.42.60.111	A	e3y3.com
129.42.60.111	A	e3y3.net
129.42.60.131	A	p3.www.ibm.com.cs186.net
129.42.60.135	A	wwwstage-ext.ibm.com.cs186.net
129.42.60.138	A	m.ibm.com.cs186.net
129.42.60.140	A	www.collaborationjam.com
129.42.60.140	A	jamext.wat.cs186.net
129.42.60.165	A	www.australianopen.org
129.42.60.165	A	cmauso-odd.wat.cs186.net
129.42.60.189	A	stg-edge.events.ibm.com
129.42.60.207	A	api.ibm.com
129.42.60.212	PTR	www.ibm.com
129.42.60.213	A	wwwtest.ibm.com
129.42.60.213	A	wwwtest.ibm.com.cs186.net
129.42.60.216	A	ibm-latam.com