Robtex

Up: 216.70.22.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.70.23.0/25
Down right: 216.70.23.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.70.23.6	PTR	eric.accessmn.com
216.70.23.8	PTR	216.70.23.8.static.enventis.net
216.70.23.11	PTR	216.70.23.11.static.enventis.net
216.70.23.18	A	autodoorgroup.com
216.70.23.18	A	aswetrial.com
216.70.23.18	A	ci3.com
216.70.23.21	A	barracuda.ci3.com
216.70.23.40	A+PTR	mx.a-tec.com
216.70.23.41	A	mail.a-tec.com
216.70.23.52	PTR	216.70.23.52.static.enventis.net
216.70.23.64	PTR	216.70.23.64.static.enventis.net
216.70.23.67	A	ivantiproxy01.acsltd.com
216.70.23.69	PTR	216.70.23.69.static.enventis.net
216.70.23.71	PTR	216.70.23.71.static.enventis.net
216.70.23.74	A	bid4thekids.org
216.70.23.81	PTR	grubb.accessmn.com
216.70.23.81	A	owa.acsltd.com
216.70.23.81	A	agrometrix.com
216.70.23.86	PTR	216.70.23.86.static.enventis.net
216.70.23.86	A	www.acsltd.com
216.70.23.86	A	acsltd.com
216.70.23.90	PTR	216.70.23.90.static.enventis.net
216.70.23.121	PTR	216.70.23.121.static.enventis.net
216.70.23.122	PTR	216.70.23.122.static.enventis.net
216.70.23.141	PTR	216.70.23.141.static.enventis.net
216.70.23.150	PTR	kelly.cokevirginia.com
216.70.23.150	A	mail.centralstatesmedicine.com
216.70.23.160	PTR	216.70.23.160.static.enventis.net
216.70.23.162	A	webmail.iowastatebanks.com
216.70.23.163	A+PTR	securemail.iowastatebanks.com
216.70.23.170	A+PTR	mds.iowastatebanks.com
216.70.23.172	PTR	172-23-70-216.iowastatebanks.com
216.70.23.201	PTR	216.70.23.201.static.enventis.net
216.70.23.210	PTR	hibbing.rthousing.org
216.70.23.210	A	mail.accesssystemscopier.com
216.70.23.210	A	mail.ndcdesmoines.org
216.70.23.211	PTR	client.squillace.us
216.70.23.211	A	meter.accesssystems.com
216.70.23.213	PTR	cityhall.gilbertmn.org
216.70.23.213	A	remote.accesshelp.co
216.70.23.223	PTR	216.70.23.223.static.enventis.net
216.70.23.237	A	mail.heartlandps.com
216.70.23.238	PTR	216.70.23.238.static.enventis.net
216.70.23.239	PTR	216.70.23.239.static.enventis.net
216.70.23.241	PTR	mail.associatedbenefits.com
216.70.23.243	PTR	client.cooknewsherald.com
216.70.23.243	A	associatedbenefits.com
216.70.23.243	A	*.associatedbenefits.com
216.70.23.245	A+PTR	mail.associatedbenefits.com
216.70.23.254	PTR	216.70.23.254.static.enventis.net