Robtex

Up: 139.177.128.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 139.177.192.0/19
Down right: 139.177.224.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
139.177.192.0	PTR	unassigned.carebridge.net
139.177.192.17	A	rbldns4.spamrats.com
139.177.193.252	A	dns.cyberium.cc
139.177.195.15	A	allaboutwebservices.com
139.177.195.15	A	ns4.allaboutwebservices.com
139.177.195.15	A	ontariodriveins.com
139.177.196.242	A	mbm.legal
139.177.202.72	A	ns2.teolla.com
139.177.204.42	A	ns1.zoneedit.com
139.177.204.42	A	dns1.zednssec.com
139.177.204.42	A	dns1.zoneedit.com
139.177.222.25	PTR	transactions.mckhboc.com
139.177.222.25	PTR	www.plus.mckhboc.com
139.177.222.25	PTR	www.transactions.mckhboc.com
139.177.222.26	A	mailbox.transactions.mckhboc.com
139.177.222.38	A	dbqvpn3.carebridge.net
139.177.222.182	A	qyourhealthcareplusdr.com
139.177.222.183	A	mckhboc.com
139.177.222.183	A	www.mckhboc.com
139.177.222.184	A	mckhboc.com
139.177.222.184	A	www.mckhboc.com
139.177.224.64	A	twmms-sender.carebridge.net
139.177.224.65	A	twmms-sender.carebridge.net
139.177.224.65	A	twmms-relay.carebridge.net
139.177.224.66	A	twmms-sender.carebridge.net
139.177.224.67	A+PTR	twmms.carebridge.net
139.177.224.67	A	mail-ext.transactions.mckhboc.com
139.177.224.128	PTR	hboc.com
139.177.224.133	A	demotest.hboc.com
139.177.224.134	A	bednot.hboc.com
139.177.224.135	A	esolutions.hboc.com
139.177.224.138	A	portal.hboc.com
139.177.224.203	A	mymail.mhsjvl.org
139.177.225.10	A	twmms-sender.carebridge.net
139.177.225.66	PTR	pat.mhg.com
139.177.225.73	A	remote.sgmc.org
139.177.225.189	A	mail.nhhn.org
139.177.226.55	A	ns1.sgmc.org
139.177.226.57	PTR	ns1.sgmc.org
139.177.226.253	A	twmms-sender.carebridge.net
139.177.226.254	A	twmms-sender.carebridge.net
139.177.230.60	A+PTR	webserv.carebridge.net
139.177.230.60	A	www.hbocvan.com
139.177.230.60	A	carebridge.net
139.177.234.43	A	ndh-cb-fswitch2.carebridge.net
139.177.234.74	A	ndh-cb-cbvm2.carebridge.net
139.177.239.129	PTR	unassigned.carebridge.net
139.177.239.130	PTR	unassigned.carebridge.net