Robtex

Up: 192.76.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 192.76.84.0/23
Down right: 192.76.86.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.76.84.38	A+PTR	sacmail1.verizon.com
192.76.84.38	A	vzsac.verizon.com
192.76.84.39	A+PTR	sacmail3.verizon.com
192.76.84.39	A	vzsac.verizon.com
192.76.84.40	A+PTR	sacmail5.verizon.com
192.76.84.40	A	vzsac.verizon.com
192.76.84.41	A	sacmail2.verizon.com
192.76.84.42	A+PTR	sacmail4.verizon.com
192.76.84.79	A+PTR	dcrmsace07.verizon.com
192.76.84.89	A+PTR	dcrmsace17.verizon.com
192.76.84.196	A+PTR	sacga2.verizon.com
192.76.84.232	A	ebpsslvpn.verizon.com
192.76.84.233	A	sacebpsslvpn.verizon.com
192.76.84.234	A	sacebpsslvpn.verizon.com
192.76.84.235	A	ebpsslvpn.verizon.com
192.76.85.7	A+PTR	ns1.verizon.com
192.76.85.28	A	essentialsandextras.verizon.com
192.76.85.39	A	feedbacktool.verizon.com
192.76.85.41	A	digitalconnectproxyuatsecure-west.verizon.com
192.76.85.53	A	digitalconnectproxysecure-westorigin.verizon.com
192.76.85.97	A	isegtw2.verizon.com
192.76.85.133	A+PTR	vzdns01.verizon.com
192.76.85.133	A	archer.tel.gte.com
192.76.85.176	A	origin-east-homecontrol.verizon.com
192.76.85.177	A	monitoringcontrol.verizon.com
192.76.85.192	A	inventoryreporting.verizon.com
192.76.85.204	A	sapbidportal.verizon.com
192.76.85.205	A	selfcare.verizon.com
192.76.85.240	A	isysathome1.verizon.com
192.76.85.245	A	www.realizeambition.com
192.76.85.245	A	realizeambition.com
192.76.85.245	A	realizedc.com
192.76.86.65	A	gtedsftw.bdi.gte.com
192.76.86.121	A	verdatserv4.bbnplanet.net
192.76.86.122	A	verdatservback.bbnplanet.net
192.76.86.129	A+PTR	ftwmail.verizon.com
192.76.86.129	A	vzftw.verizon.com
192.76.86.130	A	ftwmail2.verizon.com
192.76.86.140	A+PTR	ftwmail4.verizon.com
192.76.86.141	A	vzftw.verizon.com
192.76.86.141	A	ftwmail3.verizon.com
192.76.86.142	A	vzftw.verizon.com
192.76.86.142	A	ftwmail5.verizon.com
192.76.86.143	PTR	ftwmail7.verizon.com
192.76.86.144	A+PTR	ftwmail6.verizon.com
192.76.86.145	A	ftwmail8.verizon.com