Robtex

Up: 72.135.112.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 72.135.120.0/22
Down right: 72.135.124.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.135.120.160	A	imansco.com
72.135.120.160	A	mail.stemariefirm.com
72.135.120.160	A	mail.inframanage.net
72.135.120.181	A+PTR	cpe-72-135-120-181.new.res.rr.com
72.135.120.195	A+PTR	cpe-72-135-120-195.new.res.rr.com
72.135.120.220	PTR	cpe-72-135-120-220.new.res.rr.com
72.135.121.2	A+PTR	cpe-72-135-121-2.new.res.rr.com
72.135.121.5	A	cpe-72-135-121-5.new.res.rr.com
72.135.121.7	A	cpe-72-135-121-7.new.res.rr.com
72.135.121.8	A+PTR	cpe-72-135-121-8.new.res.rr.com
72.135.121.14	A	cpe-72-135-121-14.new.res.rr.com
72.135.121.17	A+PTR	cpe-72-135-121-17.new.res.rr.com
72.135.121.29	A	cpe-72-135-121-29.new.res.rr.com
72.135.121.30	A	cpe-72-135-121-30.new.res.rr.com
72.135.121.32	A+PTR	cpe-72-135-121-32.new.res.rr.com
72.135.121.35	A+PTR	cpe-72-135-121-35.new.res.rr.com
72.135.121.38	A	cpe-72-135-121-38.new.res.rr.com
72.135.121.41	A+PTR	cpe-72-135-121-41.new.res.rr.com
72.135.121.45	A	cpe-72-135-121-45.new.res.rr.com
72.135.121.46	A	cpe-72-135-121-46.new.res.rr.com
72.135.121.48	A+PTR	cpe-72-135-121-48.new.res.rr.com
72.135.121.49	A+PTR	cpe-72-135-121-49.new.res.rr.com
72.135.121.50	A+PTR	cpe-72-135-121-50.new.res.rr.com
72.135.121.53	A	cpe-72-135-121-53.new.res.rr.com
72.135.121.57	A+PTR	cpe-72-135-121-57.new.res.rr.com
72.135.121.58	A+PTR	cpe-72-135-121-58.new.res.rr.com
72.135.121.59	A+PTR	cpe-72-135-121-59.new.res.rr.com
72.135.121.66	A+PTR	cpe-72-135-121-66.new.res.rr.com
72.135.121.77	A	cpe-72-135-121-77.new.res.rr.com
72.135.121.79	A	cpe-72-135-121-79.new.res.rr.com
72.135.121.83	A+PTR	cpe-72-135-121-83.new.res.rr.com
72.135.121.88	A+PTR	cpe-72-135-121-88.new.res.rr.com
72.135.121.97	A+PTR	cpe-72-135-121-97.new.res.rr.com
72.135.121.100	A	cpe-72-135-121-100.new.res.rr.com
72.135.121.101	A	cpe-72-135-121-101.new.res.rr.com
72.135.121.102	A	cpe-72-135-121-102.new.res.rr.com
72.135.121.108	A	cpe-72-135-121-108.new.res.rr.com
72.135.121.111	A	cpe-72-135-121-111.new.res.rr.com
72.135.121.119	A	cpe-72-135-121-119.new.res.rr.com
72.135.121.121	A+PTR	cpe-72-135-121-121.new.res.rr.com
72.135.121.126	A	cpe-72-135-121-126.new.res.rr.com
72.135.121.127	A	cpe-72-135-121-127.new.res.rr.com
72.135.121.131	A+PTR	cpe-72-135-121-131.new.res.rr.com
72.135.121.136	A+PTR	cpe-72-135-121-136.new.res.rr.com
72.135.121.140	A	cpe-72-135-121-140.new.res.rr.com
72.135.121.142	A	cpe-72-135-121-142.new.res.rr.com
72.135.121.144	PTR	cpe-72-135-121-144.new.res.rr.com
72.135.121.149	A	cpe-72-135-121-149.new.res.rr.com
72.135.121.150	A	cpe-72-135-121-150.new.res.rr.com
72.135.121.154	A+PTR	cpe-72-135-121-154.new.res.rr.com
72.135.121.157	A	cpe-72-135-121-157.new.res.rr.com
72.135.121.159	A	cpe-72-135-121-159.new.res.rr.com
72.135.121.160	A+PTR	cpe-72-135-121-160.new.res.rr.com
72.135.121.166	A	cpe-72-135-121-166.new.res.rr.com
72.135.121.171	A+PTR	cpe-72-135-121-171.new.res.rr.com
72.135.121.172	A	cpe-72-135-121-172.new.res.rr.com
72.135.121.174	A	cpe-72-135-121-174.new.res.rr.com
72.135.121.175	A	cpe-72-135-121-175.new.res.rr.com
72.135.121.176	A+PTR	cpe-72-135-121-176.new.res.rr.com
72.135.121.187	A+PTR	cpe-72-135-121-187.new.res.rr.com
72.135.121.190	A	cpe-72-135-121-190.new.res.rr.com
72.135.121.191	A	cpe-72-135-121-191.new.res.rr.com
72.135.121.194	A+PTR	cpe-72-135-121-194.new.res.rr.com
72.135.121.201	A+PTR	cpe-72-135-121-201.new.res.rr.com
72.135.121.211	A+PTR	cpe-72-135-121-211.new.res.rr.com
72.135.121.216	A+PTR	cpe-72-135-121-216.new.res.rr.com
72.135.121.219	A+PTR	cpe-72-135-121-219.new.res.rr.com
72.135.121.221	A	cpe-72-135-121-221.new.res.rr.com
72.135.121.222	A	cpe-72-135-121-222.new.res.rr.com
72.135.121.226	A+PTR	cpe-72-135-121-226.new.res.rr.com
72.135.121.229	A	cpe-72-135-121-229.new.res.rr.com
72.135.121.234	A+PTR	cpe-72-135-121-234.new.res.rr.com
72.135.121.237	A	cpe-72-135-121-237.new.res.rr.com
72.135.121.239	A	cpe-72-135-121-239.new.res.rr.com
72.135.121.242	A+PTR	cpe-72-135-121-242.new.res.rr.com
72.135.121.244	A	cpe-72-135-121-244.new.res.rr.com
72.135.121.245	A	cpe-72-135-121-245.new.res.rr.com
72.135.121.247	A	cpe-72-135-121-247.new.res.rr.com
72.135.121.249	A+PTR	cpe-72-135-121-249.new.res.rr.com
72.135.121.252	A	cpe-72-135-121-252.new.res.rr.com
72.135.123.22	A+PTR	cpe-72-135-123-22.new.res.rr.com
72.135.125.4	A+PTR	cpe-72-135-125-4.new.res.rr.com
72.135.125.112	A	mail.the-cliffords.com
72.135.127.206	PTR	cpe-72-135-127-206.new.res.rr.com
72.135.127.217	A+PTR	cpe-72-135-127-217.new.res.rr.com
72.135.127.247	A	cpe-72-135-127-247.new.res.rr.com