Robtex

Up: 66.241.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 66.241.96.0/20
Down right: 66.241.112.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.241.96.5	PTR	zeus.email-sent.net
66.241.96.6	A	ind.ms
66.241.96.6	A	www.ind.ms
66.241.96.17	A	ipfor.me
66.241.96.17	A	www.ipfor.me
66.241.96.78	A	dawnette.com
66.241.96.125	PTR	mail.vitelity.net
66.241.96.125	A	mail.xxxxxxxxxxxxxxxxxxxxx.xxx
66.241.96.125	A	mail.sixtel.net
66.241.96.164	A	inbound24.vitelity.net
66.241.96.178	A	box1.vitel.net
66.241.96.195	A	netua.com
66.241.96.200	A	ns1.sipclient.net.managemypbx.com
66.241.96.215	A	www.c.im
66.241.96.243	A+PTR	mail1.vitelity.net
66.241.97.20	A	mail.websecureinc.com
66.241.97.75	A	fax075.vitelity.net
66.241.97.76	A	fax076.vitelity.net
66.241.97.157	A	faxenable.vitelity.net
66.241.97.157	A	fax157.vitelity.net
66.241.97.158	A	faxenable.vitelity.net
66.241.97.158	A	fax158.vitelity.net
66.241.97.165	A	faxenable.vitelity.net
66.241.97.165	A	fax165.vitelity.net
66.241.97.166	A	faxenable.vitelity.net
66.241.97.166	A	fax166.vitelity.net
66.241.99.22	A	inbound33.vitelity.net
66.241.99.27	A	inbound28.vitelity.net
66.241.99.60	A	vmail01.vitelity.net
66.241.99.61	A	vmail02.vitelity.net
66.241.99.99	PTR	mx01.vitelity.net
66.241.99.123	A	vapi-prod.vitelity.net
66.241.99.181	A	inbound34.vitelity.net
66.241.99.208	A	inbound35.vitelity.net
66.241.99.210	A	pimpmyfax.org
66.241.99.210	A	faxenable.org
66.241.99.210	A	vitelity.us
66.241.99.212	PTR	myscribbit.com
66.241.99.234	A	vapi-test.vitelity.net
66.241.99.248	A+PTR	zeusmail.vitelity.net
66.241.99.248	A	zeus.email-sent.net
66.241.99.248	A	myvoicemails.com
66.241.100.16	A	chefepedia.com
66.241.100.40	A+PTR	vt1.blitztime.com
66.241.100.40	A	vps1.blitztime.com
66.241.100.40	A	blitztime.com
66.241.100.41	PTR	vt2.blitztime.com
66.241.100.69	A	gpubuilds.com
66.241.100.69	A	brownsvilleonline.net
66.241.100.69	A	lovelaceeyecare.com
66.241.100.100	A+PTR	p1.castmm.com
66.241.100.101	A	p2.castmm.com
66.241.100.111	A	mail.gcommusa.net
66.241.100.112	A	theforwardassist.com
66.241.100.163	A	tripleccomm.net
66.241.100.163	A	tripleccom.com
66.241.100.163	A	tripleccomm.com
66.241.100.169	A+PTR	denast1.123dial.com
66.241.100.180	PTR	stedbcorp.com
66.241.100.204	A	a3uc.com
66.241.100.211	A+PTR	ns3.sccvoip.com
66.241.100.214	A	www.sonicorbiter.com
66.241.100.214	A	mymicrojukebox.com
66.241.100.225	A	notanalog.info
66.241.100.247	A	nokonah.net
66.241.100.247	A	canitan.com
66.241.100.247	A	ahilllaw.com
66.241.100.249	PTR	sip249.cloudmailstore.com
66.241.101.13	A	mx00.ivtsupport.net
66.241.101.13	A	mx02.ivtsupport.net
66.241.101.13	A	ivtsupport.net
66.241.101.23	A	u3.unfdns.com
66.241.101.56	A	mail.mycallhub.com
66.241.101.62	A	callitsimple.com
66.241.101.62	A	webprod01.bluewavecorp.net
66.241.101.62	A	modeerhunter.com
66.241.101.84	A	mycallhub.com
66.241.101.90	A	call-center-software-mcc.com
66.241.101.90	A	call-center-mcc.com
66.241.101.90	A	teladept.net
66.241.101.100	A	chat.xtdirect.com
66.241.101.108	A	mail.eoffice.org
66.241.101.108	A	eoffice.org
66.241.101.113	A+PTR	eoffice.com
66.241.101.120	A	mail.mycallhub.com
66.241.101.154	A	mail.tripairone.com
66.241.101.155	A	servicemyway.net
66.241.101.166	A	servemystuff.com
66.241.101.166	A	airplaneauctioneer.com
66.241.101.166	A	mrollag.xtdirect.com
66.241.101.170	PTR	pop0.ironvoice.com
66.241.102.10	A	evildorkgirl.com
66.241.102.37	A	ns2.callperfect.net
66.241.102.37	A	ns1.microdynamicservices.com
66.241.102.37	A	ns1.callperfect.net
66.241.102.42	A	images.encyclopediadramatica.com
66.241.102.107	A	ns.callhomeforless.com
66.241.102.107	A	mail.callhomeforless.com
66.241.102.109	A	lje01.magicappletech.net
66.241.102.133	A	mail.kerrygarrison.com
66.241.102.133	A	cameradojo.com
66.241.102.133	A	dronetechreport.com
66.241.102.179	A+PTR	bpvoip.com
66.241.102.179	A	mail.bpvoip.com
66.241.102.179	A	www.bpvoip.com
66.241.102.232	A	mail.ipiphonyhosted.com
66.241.103.33	A	pbx33.mountainphone.com
66.241.103.34	A	pbx34.mountainphone.com
66.241.103.35	A	pbx35.mountainphone.com
66.241.103.36	A+PTR	pbx36.mountainphone.com
66.241.103.64	A	gs0.winux.com
66.241.103.65	A	gs7.winux.com
66.241.103.65	A	vx1.winux.com
66.241.104.77	A	pbx.colonnade.com
66.241.104.129	A	pbx15.atgvoice.net
66.241.104.130	A	pbx16.atgvoice.net
66.241.104.131	A	pbx17.atgvoice.net
66.241.104.132	A	pbx18.atgvoice.net
66.241.104.166	A	ns2.wonderfullife.me
66.241.104.182	A	zial05.atgvoice.net
66.241.104.187	A	gotelusa.net
66.241.104.229	A+PTR	selene.automatasoft.com
66.241.104.229	A	automatasoft.com
66.241.104.230	A	dns.csalarm.com
66.241.104.230	A	mail.ncie.us
66.241.106.1	A	4gfoundry-1.vitelity.net
66.241.106.11	A	jabber01.vitelity.net
66.241.106.12	A	jabber02.vitelity.net
66.241.106.109	A	pbx.acesappraisal.com
66.241.106.169	A	v.noynim.com
66.241.106.180	A	msync.centos.org
66.241.106.180	A	mirror.centos.org
66.241.106.181	A	centosf6.centos.org
66.241.106.239	A	sloth.nncc.net
66.241.106.239	A	demopoliscatv.com
66.241.109.120	A	smooth.operator.tc
66.241.111.25	PTR	ns2.tc1.net