Robtex

Up: 24.56.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 24.56.64.0/22
Down right: 24.56.68.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
24.56.64.0	A+PTR	rrcs-24-56-64-0.ma.biz.rr.com
24.56.64.3	A	rrcs-24-56-64-3.ma.biz.rr.com
24.56.64.17	A	rrcs-24-56-64-17.ma.biz.rr.com
24.56.64.18	A	rrcs-24-56-64-18.ma.biz.rr.com
24.56.64.26	PTR	plough.org
24.56.64.26	PTR	exchange.plough.org
24.56.64.26	PTR	www.plough.org
24.56.64.42	PTR	ns1.noguska.com
24.56.64.47	A	rrcs-24-56-64-47.ma.biz.rr.com
24.56.64.100	A	rrcs-24-56-64-100.ma.biz.rr.com
24.56.64.103	A	rrcs-24-56-64-103.ma.biz.rr.com
24.56.64.106	A+PTR	rrcs-24-56-64-106.ma.biz.rr.com
24.56.64.114	PTR	ozment-law.com
24.56.64.114	PTR	www.ozment-law.com
24.56.64.114	PTR	ftp.oz-law.net
24.56.64.189	A	rrcs-24-56-64-189.ma.biz.rr.com
24.56.64.230	A	mail.vonsossan.com
24.56.64.251	A	rrcs-24-56-64-251.ma.biz.rr.com
24.56.65.3	A+PTR	rrcs-24-56-65-3.ma.biz.rr.com
24.56.65.42	PTR	chall.com
24.56.65.42	PTR	dodo.chall.com
24.56.65.42	PTR	ftp.chall.com
24.56.65.57	PTR	rrcs-24-56-65-57.ma.biz.rr.com
24.56.65.99	A	mail.thetripledub.com
24.56.65.99	A	mail.crosscreekapts.com
24.56.65.118	A	rrcs-24-56-65-118.ma.biz.rr.com
24.56.65.122	PTR	rrcs-24-56-65-122.ma.biz.rr.com
24.56.65.122	A	mail.aka3.us
24.56.65.122	A	mail.thesecuritynetwork.com
24.56.65.130	A	mail.ultraparty.com
24.56.65.169	A	rrcs-24-56-65-169.ma.biz.rr.com
24.56.65.191	A	rrcs-24-56-65-191.ma.biz.rr.com
24.56.65.194	PTR	heads-n-tails.com
24.56.65.194	PTR	ftp.heads-n-tails.com
24.56.65.194	PTR	www.heads-n-tails.com
24.56.65.226	A+PTR	rrcs-24-56-65-226.ma.biz.rr.com
24.56.65.234	A+PTR	rrcs-24-56-65-234.ma.biz.rr.com
24.56.65.235	A+PTR	rrcs-24-56-65-235.ma.biz.rr.com
24.56.65.240	A+PTR	rrcs-24-56-65-240.ma.biz.rr.com
24.56.65.254	A	noblecommonpleas.org
24.56.65.254	A	www.noblecommonpleas.org
24.56.66.0	A	rrcs-24-56-66-0.ma.biz.rr.com
24.56.66.47	A	rrcs-24-56-66-47.ma.biz.rr.com
24.56.66.56	A+PTR	rrcs-24-56-66-56.ma.biz.rr.com
24.56.66.57	A+PTR	rrcs-24-56-66-57.ma.biz.rr.com
24.56.66.60	A	rrcs-24-56-66-60.ma.biz.rr.com
24.56.66.80	PTR	rrcs-24-56-66-80.ma.biz.rr.com
24.56.66.89	PTR	rrcs-24-56-66-89.ma.biz.rr.com
24.56.66.96	A+PTR	rrcs-24-56-66-96.ma.biz.rr.com
24.56.66.104	A	rrcs-24-56-66-104.ma.biz.rr.com
24.56.66.122	PTR	rrcs-24-56-66-122.ma.biz.rr.com
24.56.66.127	A	rrcs-24-56-66-127.ma.biz.rr.com
24.56.66.179	A	rrcs-24-56-66-179.ma.biz.rr.com
24.56.66.206	A	mail.greto.com
24.56.66.206	A	mail2.greto.com
24.56.66.211	A+PTR	rrcs-24-56-66-211.ma.biz.rr.com
24.56.66.242	PTR	waddellandassociates.com
24.56.66.242	PTR	wadellandassociates.com
24.56.66.242	PTR	ftp.waddellandassociates.com
24.56.66.254	A	rrcs-24-56-66-254.ma.biz.rr.com
24.56.67.19	A+PTR	rrcs-24-56-67-19.ma.biz.rr.com
24.56.67.28	A	rrcs-24-56-67-28.ma.biz.rr.com
24.56.67.42	A+PTR	rrcs-24-56-67-42.ma.biz.rr.com
24.56.67.50	PTR	rrcs-24-56-67-50.ma.biz.rr.com
24.56.67.50	A	mail.masonomicsinc.com
24.56.67.62	A	rrcs-24-56-67-62.ma.biz.rr.com
24.56.67.65	A+PTR	rrcs-24-56-67-65.ma.biz.rr.com
24.56.67.66	A	rrcs-24-56-67-66.ma.biz.rr.com
24.56.67.74	PTR	ccnmemphis.org
24.56.67.74	PTR	ftp.ccnmemphis.org
24.56.67.74	PTR	mail.ccnmemphis.org
24.56.67.76	A	rrcs-24-56-67-76.ma.biz.rr.com
24.56.67.84	A	rrcs-24-56-67-84.ma.biz.rr.com
24.56.67.89	A+PTR	rrcs-24-56-67-89.ma.biz.rr.com
24.56.67.116	A	rrcs-24-56-67-116.ma.biz.rr.com
24.56.67.124	A	rrcs-24-56-67-124.ma.biz.rr.com
24.56.67.146	A+PTR	rrcs-24-56-67-146.ma.biz.rr.com
24.56.67.146	A	mail.homesavings-wapak.com
24.56.67.212	A	rrcs-24-56-67-212.ma.biz.rr.com
24.56.67.252	A	rrcs-24-56-67-252.ma.biz.rr.com
24.56.68.2	A+PTR	smtpx.bittersweetfarms.org
24.56.68.2	A	mail.bittersweetfarms.org
24.56.68.2	A	smtp.bittersweetfarms.org
24.56.68.3	A	rrcs-24-56-68-3.ma.biz.rr.com
24.56.68.86	A	ns.ptcauto.com
24.56.68.86	A	*.ptcauto.com
24.56.68.86	A	rrcs-24-56-68-86.ma.biz.rr.com
24.56.68.158	A	rrcs-24-56-68-158.ma.biz.rr.com
24.56.68.162	A	mail.harkavyshainberg.net
24.56.68.173	A	rrcs-24-56-68-173.ma.biz.rr.com
24.56.68.180	A	rrcs-24-56-68-180.ma.biz.rr.com
24.56.68.182	A	rrcs-24-56-68-182.ma.biz.rr.com
24.56.68.210	A	mail.haasdoor.com
24.56.68.211	A+PTR	rrcs-24-56-68-211.ma.biz.rr.com
24.56.68.219	A	mail.haasdoor.com
24.56.69.38	A	qfaviation.com
24.56.69.132	A	rrcs-24-56-69-132.ma.biz.rr.com
24.56.69.138	A	mail.gbmfg.com
24.56.69.234	A	mx.amerispeconline.com
24.56.70.10	PTR	rrcs-24-56-70-10.ma.biz.rr.com
24.56.70.114	A+PTR	rrcs-24-56-70-114.ma.biz.rr.com
24.56.70.165	A	mail.altbussys.com
24.56.70.166	A	www.ocucc.org
24.56.70.166	A	ohiolaborersapprenticeship.com
24.56.70.166	A	mail.ohiolaborersapprenticeship.com
24.56.71.2	A	rrcs-24-56-71-2.ma.biz.rr.com
24.56.71.19	A	bcadmin.com
24.56.71.19	A	bcadminapps.com
24.56.71.83	PTR	desotoms.info
24.56.71.83	PTR	ftp.desotoms.info
24.56.71.83	PTR	www.desotoms.info
24.56.71.202	PTR	rrcs-24-56-71-202.ma.biz.rr.com
24.56.71.202	A	mail.maysvilleaircraft.com
24.56.71.202	A	coldiso.org
24.56.71.203	PTR	rrcs-24-56-71-203.ma.biz.rr.com
24.56.71.203	A	houx.org