Robtex

Up: 216.74.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.74.80.0/23
Down right: 216.74.82.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.74.80.44	A+PTR	service201-adasia-communications.cellhorse.com
216.74.80.82	A	mail.greenmountainmarketinggroup.com
216.74.80.82	A	greenmountainmarketinggroup.com
216.74.81.64	A	*.bestaware.com
216.74.81.64	A	ns1.bestaware.com
216.74.81.64	A	scams.bestaware.com
216.74.81.82	A	uraniumpowercorp.com
216.74.81.251	PTR	sales37-adi-marketing.drillhat.com
216.74.82.82	A	firebranddigitalinsights.com
216.74.82.82	A	mail.firebranddigitalinsights.com
216.74.83.82	A	*.cefilter.com
216.74.83.82	A	greenlionresearchandmarketing.com
216.74.83.82	A	mail.greenlionresearchandmarketing.com