Robtex

Up: 208.72.96.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 208.72.96.0/22
Down right: 208.72.100.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.72.96.24	PTR	208-72-96-24.sfld.grid4.com
208.72.96.41	PTR	208-72-96-41.sfld.grid4.com
208.72.96.60	PTR	208-72-96-60.sfld.grid4.com
208.72.96.60	A	mail.azacapitalmanagement.com
208.72.96.60	A	mail.azacapital.com
208.72.96.69	A	collab.centroidsys.com
208.72.97.35	A+PTR	mail.thermalnetics.com
208.72.97.107	PTR	208-72-97-107.sfld.grid4.com
208.72.97.107	A	mail.secureinvestorsgroup.com
208.72.97.107	A	mail.estateserviceinc.com
208.72.98.25	PTR	208-72-98-25.sfld.grid4.com
208.72.98.25	A	www2.pentastaraviation.com
208.72.98.26	PTR	208-72-98-26.sfld.grid4.com
208.72.98.26	A	mx2.pentastaraviation.com
208.72.98.27	PTR	208-72-98-27.sfld.grid4.com
208.72.98.27	A	airplane.pentastaraviation.com
208.72.98.28	A	mx1.pentastaraviation.com
208.72.98.74	A	mail.detroitelectrical.com
208.72.98.75	A	detroitelectrical.com
208.72.98.218	A+PTR	mail.gateslaw.biz
208.72.98.218	PTR	mail.hshclaw.com
208.72.98.218	A	hallahanlaw.com
208.72.99.20	A	webmail.cityconnectdetroit.org
208.72.99.36	A	phoenixpoly.com
208.72.99.66	A+PTR	meisner-associates.com
208.72.99.66	A	mail.meisner-law.com
208.72.99.74	PTR	208-72-99-74.sfld.grid4.com
208.72.99.85	A	mail.airparkplastics.com
208.72.99.85	A	mail.vantageplastics.com
208.72.99.91	PTR	mx1.imagesoftinc.com
208.72.99.91	A	mx2.revxchange.com
208.72.99.91	A	mx2.revexchange.com
208.72.100.2	PTR	208-72-100-2.sfld.grid4.com
208.72.100.3	PTR	208-72-100-3.sfld.grid4.com
208.72.100.21	A	mail.bgcsm.org
208.72.100.66	PTR	mail.alpine-inc.net
208.72.100.96	A	josebeyer.com
208.72.101.82	A	mail.mason-mcbride.com
208.72.101.90	A	mail.cmacemail.com
208.72.101.91	A+PTR	cmacex01.cmactrans.com
208.72.101.91	A	mail.mshlogistics.com
208.72.101.91	A	mail.superiorgl.com
208.72.101.106	PTR	ex2007.csgnow.com
208.72.101.106	PTR	exchange.csgnow.com
208.72.101.106	A	fs1.csgnow.net
208.72.101.122	A	mail3.detroitsalt.com
208.72.102.50	PTR	mail.incoe.com
208.72.102.51	PTR	www.incoe.com
208.72.102.74	PTR	connect.select1.com
208.72.102.97	PTR	208-72-102-97.sfld.grid4.com
208.72.102.97	A	mail.diamaclean.com
208.72.102.118	A	ravenlogistics.com
208.72.103.10	A	tabletentprint.com
208.72.103.28	PTR	208-72-103.28.sfld.grid4.com
208.72.103.28	A	cptest3.com
208.72.103.32	PTR	208-72-103-32.sfld.grid4.com