Robtex

Up: 68.227.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 68.227.72.0/23
Down right: 68.227.74.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
68.227.72.18	A+PTR	wsip-68-227-72-18.no.no.cox.net
68.227.72.147	A	mail.bigplayentertainment.com
68.227.72.147	A	webmail.goldcoastres.com
68.227.72.239	A+PTR	wsip-68-227-72-239.no.no.cox.net
68.227.72.246	A+PTR	wsip-68-227-72-246.no.no.cox.net
68.227.72.248	A+PTR	wsip-68-227-72-248.no.no.cox.net
68.227.73.3	PTR	wsip-68-227-73-3.no.no.cox.net
68.227.73.3	A	orleans.dtec.us
68.227.73.8	A	remote.amsrecovery.com
68.227.73.66	A+PTR	wsip-68-227-73-66.no.no.cox.net
68.227.73.66	A	amazinghomefinds.com
68.227.73.68	A+PTR	wsip-68-227-73-68.no.no.cox.net
68.227.73.68	A	www.automailer.us
68.227.73.68	A	automailers.us
68.227.73.153	A	mail.hartmasonry.com
68.227.73.153	A	hartmasonry.com
68.227.73.194	PTR	ns1.bpcs.net
68.227.74.62	A	dhsllc.com
68.227.74.62	A	mail.dhsllc.com
68.227.74.62	A	*.dhsllc.com
68.227.74.73	A+PTR	wsip-68-227-74-73.no.no.cox.net
68.227.74.92	A	www.systekhosting.net
68.227.74.92	A	systekhosting.net
68.227.74.92	A	tygertails.com
68.227.74.131	A	mail.lane-assoc.com
68.227.74.175	A+PTR	wsip-68-227-74-175.no.no.cox.net
68.227.74.175	A	mail.stcletus.com
68.227.74.184	A	mail.ictcomputer.com
68.227.74.194	A	mail.outsolve-hr.com
68.227.75.40	PTR	wsip-68-227-75-40.no.no.cox.net
68.227.75.40	A	mailsvr.constructionsouth.net
68.227.75.58	A+PTR	mail.mmdcpa.net
68.227.75.231	PTR	mail.gulfmarine.net
68.227.75.242	A	crescenthardwoodsupply.com
68.227.75.250	A+PTR	wsip-68-227-75-250.no.no.cox.net