Robtex

Up: 216.38.66.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.38.66.0/25
Down right: 216.38.66.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.38.66.4	A	hunterinfocus.com
216.38.66.10	A	mail.tier1net.net
216.38.66.10	A	relay.tier1net.net
216.38.66.11	A	mail.brookepea.com
216.38.66.15	A	shireu.com
216.38.66.21	A+PTR	nebh-relay.som.tier1net.net
216.38.66.21	A	nebh.org
216.38.66.21	A	www.nebh.org
216.38.66.30	A	mail.intellisoftgroup.com
216.38.66.37	A+PTR	isgweb-relay.intellisoftgroup.com
216.38.66.37	A	intellisoftgroup.com
216.38.66.40	A+PTR	mail.gutierrezco.com
216.38.66.50	A	connect.tier1net.com
216.38.66.52	A+PTR	img-relay.som.tier1net.net
216.38.66.52	A	myeventpic.com
216.38.66.59	A	chat.tier1net.net
216.38.66.60	A	mx.tier1net.com
216.38.66.60	A	owa.tier1net.com
216.38.66.60	A	mail.tier1net.com
216.38.66.65	A+PTR	beta.americanmusicco.com
216.38.66.65	A	www.americanmusicco.com
216.38.66.80	A	assets.atriushealth.org
216.38.66.81	A	atrius.dev.som.tier1net.net
216.38.66.81	A	www.atriushealth.org
216.38.66.81	A	atriushealth.org
216.38.66.83	A	www.atriushealth.org
216.38.66.83	A	atriushealth.org
216.38.66.83	A	www.harvardvanguard.org
216.38.66.86	A	dedhammedical.com
216.38.66.86	A	www.dedhammedical.com
216.38.66.87	A	granitemedical.com
216.38.66.90	A	mail.bostonbrokerage.com
216.38.66.90	A	mail2.bostonbrokerage.com
216.38.66.101	PTR	limoliner.com
216.38.66.101	A	www.limoliner.com
216.38.66.101	A	kennisonassociates.com
216.38.66.102	A	msa.tier1net.net
216.38.66.103	A	www.hancockassociates.com
216.38.66.104	A	www.emersonim.com
216.38.66.104	A	emersoninvestment.com
216.38.66.105	A	moynihanlumber.com
216.38.66.106	A	www.mcdougalarchitects.com
216.38.66.107	A	*.capitasfinancial.com
216.38.66.107	A	capitasfinancial.com
216.38.66.107	A	theblairagency.capitasfinancial.com
216.38.66.108	A	www.dolben.com
216.38.66.109	A	lifesupportsystems.com
216.38.66.110	PTR	aw2-relay.som.tier1net.net
216.38.66.110	A	aw2.tier1net.net
216.38.66.110	A	www.kennison.com
216.38.66.112	A	www.tier1net.com
216.38.66.112	A	tier1cloudhosting.com
216.38.66.112	A	tier1cloud.net
216.38.66.114	A	mmbusinessstages.com
216.38.66.121	PTR	db1.tier1net.net
216.38.66.121	A	as1.tier1net.net
216.38.66.122	A	ams.tier1net.net
216.38.66.141	A+PTR	clxweb-relay.contractlogix.com
216.38.66.141	A	contractlogix.com
216.38.66.142	A+PTR	clx-saas-relay.contractlogix.com
216.38.66.144	A	web.contractlogix.com
216.38.66.152	PTR	mma-relay.som.tier1net.net
216.38.66.152	A	media.massmutual.com
216.38.66.152	A	massmutual-sanjose.com
216.38.66.153	A	southeastcoast.authoring.massmutual.com
216.38.66.153	A	smtp.gidev05.com
216.38.66.154	A	mmtechstrategy.com
216.38.66.155	A	massmutualatwork.com
216.38.66.155	A	www.massmutualatwork.com
216.38.66.155	A	beneclick.com
216.38.66.156	A+PTR	www.financialguide.com
216.38.66.156	A	financialguide.com
216.38.66.158	A	northtexas.massmutual.com
216.38.66.158	A	westchester.massmutual.com
216.38.66.158	A	carolinas.massmutual.com
216.38.66.159	A	massmutualrsdemo.com
216.38.66.159	A	www.massmutualrsdemo.com
216.38.66.160	A	gidev06.com
216.38.66.160	A	*.sullivantirewholesale.com
216.38.66.160	A	www.sullivantirewholesale.com
216.38.66.162	A	massmutualbrokerage.com
216.38.66.162	A	www.massmutualbrokerage.com
216.38.66.163	A	massmutualcareers.com
216.38.66.170	A	mail.lhand.org
216.38.66.180	A	mail.contractlogix.com
216.38.66.190	A	mail.zizikpowers.com
216.38.66.190	A	mail.zizikpowers.net
216.38.66.190	A	smtp.ziziklaw.com
216.38.66.210	A+PTR	caw-relay.som.tier1net.net
216.38.66.210	A	host227.cerulli.com
216.38.66.210	A	cerulli.com
216.38.66.220	PTR	ws1.tier1net.net
216.38.66.220	A	giftofhearingfoundation.org
216.38.66.220	A	disbeducation.com
216.38.66.230	A	mail.xtalic.com
216.38.66.252	A	mmrelay.tier1net.net
216.38.66.253	A+PTR	som.fw.tier1net.net
216.38.66.253	A+PTR	fw.som.tier1net.net
216.38.66.253	A+PTR	hvp-fw.som.tier1net.net