Robtex

Up: 216.183.184.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.183.188.0/23
Down right: 216.183.190.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.183.190.10	A	ohointeractive.com
216.183.190.10	A	ohoboston.com
216.183.190.10	A	ybos.net
216.183.190.18	A	mail.haphousing.com
216.183.190.32	A	addiction-questions.org
216.183.190.32	A	mghpsychiatry.com
216.183.190.32	A	addiction-answers.com
216.183.190.101	A	grenport.com
216.183.190.104	A	skagitvascular.org
216.183.190.131	PTR	corp2.keoyo.com
216.183.190.131	A	cimple.ng
216.183.190.131	A	smtp.atholla.com
216.183.190.132	A	shipmait.com
216.183.190.132	A	smtp.shipmait.com
216.183.190.132	A	kondiggi.com
216.183.190.140	A	keoyo.com
216.183.191.12	PTR	auth2.dns.bosdc1.expedient.net
216.183.191.12	A	superman.cngservices.com
216.183.191.12	A	cle-ns2.e-xpedient.com
216.183.191.14	PTR	dnsext12.dns.bosdc1.expedient.net
216.183.191.19	PTR	lifeaccess-gw0.cust.e-xpedient.com
216.183.191.20	A	providenthealthcare-gw0.cust.e-xpedient.com
216.183.191.69	A	cab-mon2r3c1.expedient.com
216.183.191.70	A	cab-mon3r3c1.expedient.com
216.183.191.75	A+PTR	cab-sw14a12r1c1.expedient.com
216.183.191.76	A	cab-sw15a12r1c1.expedient.com
216.183.191.77	A+PTR	cab-sw16a12r1c1.expedient.com
216.183.191.84	A+PTR	neoga.medicalne.com
216.183.191.88	A	myuniversalcloud.com
216.183.191.133	PTR	mail.brattle.com
216.183.191.140	A	brattle-br0.cust.e-xpedient.com
216.183.191.194	PTR	mail.s-b-usa.com
216.183.191.226	A	bostonherald-br0.cust.e-xpedient.com
216.183.191.226	A	bherald-srx220.cust.e-xpedient.com
216.183.191.228	A+PTR	mercury.bostonherald.com
216.183.191.233	A	mailserver.bostonherald.com