Robtex

Up: 192.147.216.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 192.147.220.0/23
Down right: 192.147.222.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.147.222.2	A+PTR	sam.allmerica.com
192.147.222.3	A+PTR	sam2.allmerica.com
192.147.222.40	A+PTR	hotinetddos1.allmerica.com
192.147.222.41	A+PTR	worinetddos1.allmerica.com
192.147.222.55	A+PTR	site2.allmerica.com
192.147.222.58	A+PTR	sam3v.allmerica.com
192.147.222.59	A+PTR	sam3.allmerica.com
192.147.222.60	A+PTR	sam1.allmerica.com
192.147.222.66	A+PTR	interp1.allmerica.com
192.147.222.68	A+PTR	redirecttemp.hanover.com
192.147.222.69	PTR	ineall01.allmerica.com
192.147.222.69	A	professionalsdirect.com
192.147.222.69	A	*.lawyersdirect.com
192.147.222.72	A+PTR	redirect.hanover.com
192.147.222.72	A	tap.hanover.com
192.147.222.72	A	hanoveralertline.com
192.147.222.73	A+PTR	depot.allmerica.com
192.147.222.77	A+PTR	secure-vip.allmerica.com
192.147.222.79	A+PTR	hod.allmerica.com
192.147.222.80	A+PTR	wwwprd.allmerica.com
192.147.222.80	A	opusinvestment.com
192.147.222.80	A	opusinvestments.com
192.147.222.82	PTR	pwas.allmerica.com
192.147.222.83	PTR	dnsext.allmerica.com
192.147.222.84	A+PTR	client.opusinvestment.com
192.147.222.86	A+PTR	securemail.hanover.com
192.147.222.87	A+PTR	voltage-pp-0000.hanover.com
192.147.222.90	A+PTR	swd1.allmerica.com
192.147.222.91	A+PTR	lynx.allmerica.com
192.147.222.91	A	documentfactory.allmerica.com
192.147.222.91	A	scportal.allmerica.com
192.147.222.92	A+PTR	intranet.allmerica.com
192.147.222.92	A	web.allmerica.com
192.147.222.93	A+PTR	swd2.allmerica.com
192.147.222.95	PTR	industry-ins.com
192.147.222.95	A	hanoverprofessional.com
192.147.222.97	PTR	www.producersresource.com
192.147.222.98	A+PTR	afcirn2.allmerica.com
192.147.222.99	A+PTR	spam2.allmerica.com
192.147.222.100	A+PTR	homvdipr1.allmerica.com
192.147.222.101	A+PTR	homvdipr2.allmerica.com
192.147.222.102	A+PTR	hod2vip.allmerica.com
192.147.222.107	A+PTR	cmappsvip.allmerica.com
192.147.222.108	A+PTR	afcirn1.allmerica.com
192.147.222.109	A+PTR	hanover-smtp.hanover.com
192.147.222.110	PTR	portal.allmerica.com
192.147.222.110	A	tap.allmerica.com
192.147.222.110	A	signon.allmerica.com
192.147.222.111	PTR	sharefileprdvip.hanover.com
192.147.222.112	A+PTR	homhtgw92.allmerica.com
192.147.222.113	A+PTR	homcsan3.allmerica.com
192.147.222.118	A+PTR	hanover-smtp2.hanover.com
192.147.222.124	A+PTR	myclaimauto.hanover.com
192.147.222.124	A	registration.hanover.com
192.147.222.144	A+PTR	smtp.afs.allmerica.com
192.147.222.197	A+PTR	vap1.hanover.com
192.147.222.198	A+PTR	vap2.hanover.com
192.147.222.199	A+PTR	adfsmodproxyvip.hanover.com
192.147.222.200	A+PTR	homcsan4.hanover.com
192.147.222.202	A+PTR	epacpda.allmerica.com
192.147.222.205	A+PTR	billing.allmerica.com
192.147.222.206	A+PTR	billperf.allmerica.com
192.147.222.207	A+PTR	billtest.allmerica.com
192.147.222.208	A+PTR	horizonextvip.hanover.com
192.147.222.210	A+PTR	pos.allmerica.com
192.147.222.211	A	approxyprdallmericavip.allmerica.com
192.147.222.214	A+PTR	altiris71vip.hanover.com
192.147.222.215	A+PTR	lxpr2ftp.allmerica.com
192.147.222.216	A+PTR	homvdisspr5.hanover.com
192.147.222.217	A+PTR	hanprofproxyprodvip.allmerica.com
192.147.222.220	A+PTR	posperf.allmerica.com
192.147.222.227	A+PTR	apps.hanover.com
192.147.222.228	A+PTR	vpn.hanover.com
192.147.222.230	A+PTR	postest.allmerica.com
192.147.222.232	A+PTR	comrater.allmerica.com
192.147.222.233	A+PTR	comperf.allmerica.com
192.147.222.233	PTR	ecls.allmerica.com
192.147.222.237	PTR	remote.allmerica.com
192.147.222.238	A+PTR	homsevip.hanover.com
192.147.222.239	A+PTR	homvdisspr6.hanover.com
192.147.222.240	PTR	web.allmerica.com
192.147.222.250	A+PTR	homvdisspr1.hanover.com
192.147.222.251	A+PTR	homvdisspr2.hanover.com
192.147.222.252	A+PTR	vdi.hanover.com
192.147.222.253	A+PTR	adfsvip.hanover.com
192.147.223.201	A+PTR	dradproxy-vip.hanover.com
192.147.223.204	A+PTR	recovery.hanover.com
192.147.223.254	PTR	sam6v.allmerica.com