Robtex

Up: 137.196.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 137.197.0.0/17
Down right: 137.197.128.0/17

IP	Type	Hostname
137.197.0.0	A+PTR	host-137-197-0-0.unmc.edu
137.197.0.28	A	host-137-197-0-28.unmc.edu
137.197.0.62	A	host-137-197-0-62.unmc.edu
137.197.0.66	A	host-137-197-0-66.unmc.edu
137.197.2.2	PTR	host-137-197-2-2.unmc.edu
137.197.4.89	A	host-137-197-4-89.unmc.edu
137.197.6.76	A	host-137-197-6-76.unmc.edu
137.197.9.3	A	host-137-197-9-3.unmc.edu
137.197.9.77	A	host-137-197-9-77.unmc.edu
137.197.10.55	A	host-137-197-10-55.unmc.edu
137.197.10.57	A	host-137-197-10-57.unmc.edu
137.197.10.82	A	host-137-197-10-82.unmc.edu
137.197.10.150	A	host-137-197-10-150.unmc.edu
137.197.11.79	A	host-137-197-11-79.unmc.edu
137.197.11.158	A	host-137-197-11-158.unmc.edu
137.197.11.198	A	host-137-197-11-198.unmc.edu
137.197.15.1	A	host-137-197-15-1.unmc.edu
137.197.15.2	PTR	host-137-197-15-2.unmc.edu
137.197.18.2	A+PTR	host-137-197-18-2.unmc.edu
137.197.23.2	A	host-137-197-23-2.unmc.edu
137.197.25.2	A	host-137-197-25-2.unmc.edu
137.197.32.2	A+PTR	host-137-197-32-2.unmc.edu
137.197.39.210	A	host-137-197-39-210.unmc.edu
137.197.39.211	A+PTR	host-137-197-39-211.unmc.edu
137.197.39.216	A	host-137-197-39-216.unmc.edu
137.197.39.232	A+PTR	host-137-197-39-232.unmc.edu
137.197.49.29	A	host-137-197-49-29.unmc.edu
137.197.68.177	A	host-137-197-68-177.unmc.edu
137.197.77.50	PTR	host-137-197-77-50.unmc.edu
137.197.80.86	A	host-137-197-80-86.unmc.edu
137.197.91.70	A	host-137-197-91-70.unmc.edu
137.197.91.100	A	host-137-197-91-100.unmc.edu
137.197.97.69	A	host-137-197-97-69.unmc.edu
137.197.104.101	A	host-137-197-104-101.unmc.edu
137.197.118.242	A	host-137-197-118-242.unmc.edu
137.197.123.200	A	host-137-197-123-200.unmc.edu
137.197.130.16	A	host-137-197-130-16.unmc.edu
137.197.139.210	A	host-137-197-139-210.unmc.edu
137.197.141.114	A+PTR	host-137-197-141-114.unmc.edu
137.197.149.136	A	host-137-197-149-136.unmc.edu
137.197.162.199	A	host-137-197-162-199.unmc.edu
137.197.164.6	PTR	host-137-197-164-6.unmc.edu
137.197.164.55	PTR	host-137-197-164-55.unmc.edu
137.197.181.49	A	host-137-197-181-49.unmc.edu
137.197.186.30	A	host-137-197-186-30.unmc.edu
137.197.190.38	A	host-137-197-190-38.unmc.edu
137.197.190.39	A	host-137-197-190-39.unmc.edu
137.197.198.78	PTR	host-137-197-198-78.unmc.edu
137.197.205.166	A	host-137-197-205-166.unmc.edu
137.197.206.30	A	host-137-197-206-30.unmc.edu
137.197.213.62	A+PTR	host-137-197-213-62.unmc.edu
137.197.232.9	A	host-137-197-232-9.unmc.edu
137.197.233.76	A	host-137-197-233-76.unmc.edu
137.197.239.183	A	host-137-197-239-183.unmc.edu
137.197.254.127	PTR	host-137-197-254-127.unmc.edu
137.197.254.127	A	heartoftheregions.com