Robtex

Up: 198.255.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 198.255.224.0/20
Down right: 198.255.240.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.255.224.24	A	artopaclients.com
198.255.226.196	A+PTR	cpe-198-255-226-196.maine.res.rr.com
198.255.226.214	A+PTR	cpe-198-255-226-214.maine.res.rr.com
198.255.227.175	A+PTR	cpe-198-255-227-175.maine.res.rr.com
198.255.227.175	A	joshearl.pro
198.255.227.197	A+PTR	cpe-198-255-227-197.maine.res.rr.com
198.255.227.197	A	mail.ryanjpage.com
198.255.227.197	A	classiccarpetcare.net
198.255.228.241	A	home.mikelab.com
198.255.229.17	A	freetunez.us
198.255.229.99	PTR	cpe-198-255-229-99.maine.res.rr.com
198.255.229.127	A+PTR	cpe-198-255-229-127.maine.res.rr.com
198.255.229.127	A	beeteedubs.net
198.255.229.241	A+PTR	cpe-198-255-229-241.maine.res.rr.com
198.255.230.220	A+PTR	cpe-198-255-230-220.maine.res.rr.com
198.255.230.220	A	d32.zapto.org
198.255.231.128	A+PTR	cpe-198-255-231-128.maine.res.rr.com
198.255.231.151	A+PTR	cpe-198-255-231-151.maine.res.rr.com
198.255.231.178	A+PTR	cpe-198-255-231-178.maine.res.rr.com
198.255.231.178	A	royaltarttoter.com
198.255.231.210	A	burzum.ath.cx
198.255.233.37	PTR	cpe-198-255-233-37.maine.res.rr.com
198.255.234.134	A+PTR	cpe-198-255-234-134.maine.res.rr.com
198.255.237.101	A+PTR	cpe-198-255-237-101.maine.res.rr.com
198.255.237.101	A	gotoenail.com
198.255.237.107	A+PTR	cpe-198-255-237-107.maine.res.rr.com
198.255.237.107	A	aplacebythelake.com
198.255.239.195	A+PTR	cpe-198-255-239-195.maine.res.rr.com
198.255.239.248	A+PTR	cpe-198-255-239-248.maine.res.rr.com
198.255.240.64	PTR	cpe-198-255-240-64.maine.res.rr.com
198.255.240.134	A+PTR	cpe-198-255-240-134.maine.res.rr.com
198.255.240.218	PTR	cpe-198-255-240-218.maine.res.rr.com
198.255.241.55	A+PTR	cpe-198-255-241-55.maine.res.rr.com
198.255.241.55	A	tonyroofs.com
198.255.241.77	PTR	cpe-198-255-241-77.maine.res.rr.com
198.255.242.150	A+PTR	cpe-198-255-242-150.maine.res.rr.com
198.255.242.191	PTR	cpe-198-255-242-191.maine.res.rr.com
198.255.243.225	A+PTR	cpe-198-255-243-225.maine.res.rr.com
198.255.244.111	PTR	cpe-198-255-244-111.maine.res.rr.com
198.255.244.111	A	derekof.com
198.255.245.81	PTR	cpe-198-255-245-81.maine.res.rr.com
198.255.245.199	A+PTR	cpe-198-255-245-199.maine.res.rr.com
198.255.246.50	PTR	cpe-198-255-246-50.maine.res.rr.com
198.255.246.102	PTR	cpe-198-255-246-102.maine.res.rr.com
198.255.247.197	A+PTR	cpe-198-255-247-197.maine.res.rr.com
198.255.249.28	PTR	cpe-198-255-249-28.maine.res.rr.com
198.255.251.92	A+PTR	cpe-198-255-251-92.maine.res.rr.com
198.255.255.255	PTR	cpe-198-255-255-255.maine.res.rr.com