Robtex

Up: 200.23.28.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 200.23.29.0/25
Down right: 200.23.29.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
200.23.29.60	A+PTR	vpn.cemex.com
200.23.29.61	A	mxomtyrtr66.cemex.com
200.23.29.62	A+PTR	mxomtyrtr67.cemex.com
200.23.29.78	A	mail.gestino.com
200.23.29.115	A+PTR	mx1.cemex.com
200.23.29.115	A	mx1.cemexbangladesh.com
200.23.29.115	A	mx2.cemexbangladesh.com
200.23.29.120	A	traveler.cemex.com
200.23.29.125	A	wb.cemex.com
200.23.29.130	A+PTR	web.cemex.com
200.23.29.131	A+PTR	ns2.cemex.com
200.23.29.132	A+PTR	smtp-mexico.cemex.com
200.23.29.132	A	smtp.cemex.com
200.23.29.132	A	mail.cemex.com
200.23.29.133	A+PTR	fws.cemex.com
200.23.29.134	A	mxoccfws04.cemex.com
200.23.29.135	A	mxoccfws02.cemex.com
200.23.29.137	A	mxoccfws03.cemex.com
200.23.29.138	A+PTR	ns1.cemex.com
200.23.29.138	A	mail2.cemex.com
200.23.29.139	A+PTR	smtp-unix.cemex.com
200.23.29.139	A	smtp.cemex.com
200.23.29.140	A	tst.concretos.com.mx
200.23.29.140	A	mail.cxnetworks.com
200.23.29.141	A+PTR	cemex-irs.cemex.com
200.23.29.141	A	mail.cemexconcretos.com
200.23.29.147	A	www.cemex.com.mx
200.23.29.147	A	cemexmexico.com
200.23.29.147	A	www.cemexmexico.com
200.23.29.151	A	cemex.fr
200.23.29.151	A	www.cemex.fr
200.23.29.162	A	www.construmex.com
200.23.29.164	A	cemexusa.com
200.23.29.166	A	cemexcolombia.com
200.23.29.166	A	www.cemexcolombia.com
200.23.29.167	A	cemexdominicana.com
200.23.29.167	A	www.cemexdominicana.com
200.23.29.168	A	www.cemexcostarica.com
200.23.29.169	A	cemex.com.pa
200.23.29.169	A	www.cemexpanama.com
200.23.29.173	A	www.cemex.com.eg
200.23.29.175	A	www.cemexnicaragua.com
200.23.29.176	A	*.dnsdiscovery.com
200.23.29.176	A	www.cemexphilippines.com
200.23.29.179	A	remoteaccess.cemex.com
200.23.29.180	A	mx4.cemexthailand.com
200.23.29.180	A	mail4.cemex.com.ni
200.23.29.180	A	mx4.cemex.com.ph
200.23.29.184	A	patrimoniohoy.com
200.23.29.188	A+PTR	mx6.cemex.com
200.23.29.188	A	mx6.cemexthailand.com
200.23.29.188	A	mx4.cemex.co.uk
200.23.29.189	A+PTR	mx3.cemex.com
200.23.29.189	A	mx3.cemexphilippines.com
200.23.29.189	A	mxin01.cemex.com
200.23.29.190	PTR	mx4.cemex.com
200.23.29.190	PTR	mx5.cemex.com
200.23.29.190	A	mx3.cemex.co.uk
200.23.29.194	PTR	remoteaccess.cemex.com
200.23.29.197	A+PTR	tmxoccedt12.cemex.com
200.23.29.197	A	cemexlatamholdings.com
200.23.29.197	A	cemexlh.com
200.23.29.201	PTR	www.cemex.com
200.23.29.201	A	cementosmexicanos.com.mx
200.23.29.201	A	cemexconcreto.com
200.23.29.211	A	www.arkio.com
200.23.29.211	A	lazosfamiliares.com.mx
200.23.29.214	PTR	e-selling3.cemexmexico.com
200.23.29.214	A	e-selling3.cemex.com.mx
200.23.29.214	A	mail.cemexcustomer.com
200.23.29.217	A	dns1.cemex.com
200.23.29.218	A+PTR	dns2.cemex.com
200.23.29.220	A	construcard.com.mx
200.23.29.222	A	ventikawindpowerplant.com
200.23.29.228	A	mail.cemexreadymix.com
200.23.29.235	A	www.cemexvendors.com
200.23.29.235	A	cemexvendors.com
200.23.29.245	A	ns1.cemex.com
200.23.29.246	A	ns2.cemex.com
200.23.29.247	A	sip.cemex.com
200.23.29.250	A	sip.cemex.com