Robtex

Up: 72.55.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 72.55.224.0/20
Down right: 72.55.240.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.55.224.0	PTR	72-55-224-0.static.firstlight.net
72.55.224.194	A	althahosting.com
72.55.227.29	A	laserwatch2.com
72.55.228.0	PTR	72-55-228-0.static.firstlight.net
72.55.228.130	A+PTR	mail.woodlandsalf.com
72.55.228.152	A+PTR	remote.pfbf.com
72.55.228.196	PTR	mercedes.appops.net
72.55.228.196	A	muznet.net
72.55.228.196	A	setonvillage.com
72.55.232.3	A+PTR	dns1.oxfordnetworks.net
72.55.232.3	A	ns2.oxfordnetworks.net
72.55.232.3	A	ns2.megalink.net
72.55.232.140	A	bangorfamilydentistry.net
72.55.232.149	A+PTR	mail.bangorbaptist.com
72.55.232.167	PTR	mail.bangorfederal.com
72.55.232.168	A+PTR	mail.bangorfederal.com
72.55.232.168	A	mail.bangorfcu.com
72.55.232.169	A	mail2.bangorfcu.com
72.55.232.169	A	mail2.bangorfederal.com
72.55.232.194	A	www.excelme.com
72.55.232.199	A	iqres05901.com
72.55.232.216	A	mail.trilliumdx.com
72.55.232.235	A+PTR	mail.twincitysheetmetal.com
72.55.232.235	A	mail2.twincitysheetmetal.com
72.55.232.243	A	mx.howardtool.com
72.55.232.243	A	mail.howardtool.com
72.55.234.1	A	charleston-rtr.pcb-me.net
72.55.236.1	A	charleston-rtr.pcb-me.net
72.55.236.10	A	host-72-55-236-10.pcb-me.net
72.55.236.79	A	host-72-55-236-79.pcb-me.net
72.55.238.33	A+PTR	host-72-55-238-33.pcb-me.net
72.55.246.18	PTR	dicom.vetmedstat.com
72.55.246.18	PTR	dicom.gtm.idexx.com
72.55.246.18	A	dicom.gtm.vetmedstat.com
72.55.246.22	PTR	animalhealthsummit.com
72.55.246.22	PTR	flockchek.com
72.55.246.22	PTR	herdchek.com
72.55.246.36	PTR	mail-me.idexx.com
72.55.246.36	PTR	mail-me.gtm.idexx.com
72.55.246.45	A	vetvault.idexx.com
72.55.246.46	A+PTR	orca.idexx.com
72.55.246.46	A+PTR	orca.gtm.idexx.com
72.55.246.49	PTR	ftp.idexx.com
72.55.246.49	A	ftpdw.idexx.com
72.55.246.66	A	www.gtm.vetconnect.ca
72.55.246.80	A	horn.idexx.com
72.55.246.95	A	gsa.idexx.com
72.55.246.103	A+PTR	beacon.idexx.com
72.55.246.103	PTR	beacon.gtm.idexx.com
72.55.246.103	A	beacon.tm.idexx.com
72.55.246.110	A	services.gtm.idexx.com
72.55.246.118	A	vmsp-vip.vetmedstat.com
72.55.246.129	A+PTR	smartservice-ft.idexx.com
72.55.246.129	A+PTR	smartservice-ft.gtm.idexx.com
72.55.246.135	PTR	mail-me.idexx.com
72.55.246.135	A	mail-me.tm.idexx.com
72.55.246.135	A	mail-me-dev.gtm.idexx.com
72.55.246.161	A	betaservices.gtm.idexx.com
72.55.246.168	A	enterprise.gtm.smartservice.idexx.com
72.55.246.168	A	enterprise.smartservice.tm.idexx.com
72.55.246.168	A	enterprise.smartservice.idexx.com
72.55.246.191	A	idexxcornerstone.com
72.55.246.200	A	vpn-me.idexx.com
72.55.246.226	PTR	idexx.ca
72.55.246.226	PTR	optimedical.com
72.55.246.226	PTR	www.idexx.com
72.55.246.254	PTR	idx-gtm-out1.idexx.com
72.55.248.106	A	2pichubros.com
72.55.248.106	A	mx.2pichubros.com
72.55.248.106	A	www.2pichubros.com
72.55.253.11	A	imap.troyny.gov
72.55.253.12	A	www.custompools.com
72.55.253.13	A	smprtitle.com
72.55.253.13	A	plugpower.com
72.55.253.32	PTR	72-55-253-32.uninets.net
72.55.253.32	A	mail.hermitageclub.com
72.55.253.32	A	dc-ba313c03de2c.chelsealeephotography.com
72.55.255.56	A	dallastrafficsafety.com
72.55.255.255	A	72-55-255-255.uninets.net