Robtex

Up: 192.12.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 192.12.36.0/23
Down right: 192.12.38.0/23

IP	Type	Hostname
192.12.36.0	A+PTR	bjcabc-36-0.slb.com
192.12.36.12	A+PTR	bjcabc-36-12.slb.com
192.12.36.16	A+PTR	bjcabc-36-16.slb.com
192.12.36.21	A+PTR	bjcabc-36-21.slb.com
192.12.36.24	A	bjcabc-36-24.slb.com
192.12.36.27	A+PTR	bjcabc-36-27.slb.com
192.12.36.29	A	bjcabc-36-29.slb.com
192.12.36.32	A	bjcabc-36-32.slb.com
192.12.36.37	A	bjcabc-36-37.slb.com
192.12.36.44	A	bjcabc-36-44.slb.com
192.12.36.46	A	bjcabc-36-46.slb.com
192.12.36.52	A+PTR	bjcabc-36-52.slb.com
192.12.36.53	A+PTR	bjcabc-36-53.slb.com
192.12.36.55	A	bjcabc-36-55.slb.com
192.12.36.57	A+PTR	bjcabc-36-57.slb.com
192.12.36.60	A	bjcabc-36-60.slb.com
192.12.36.67	A+PTR	bjcabc-36-67.slb.com
192.12.36.69	A+PTR	bjcabc-36-69.slb.com
192.12.36.75	A+PTR	bjcabc-36-75.slb.com
192.12.36.86	A+PTR	bjcabc-36-86.slb.com
192.12.36.100	A	bjcabc-36-100.slb.com
192.12.36.105	A+PTR	bjcabc-36-105.slb.com
192.12.36.110	A	bjcabc-36-110.slb.com
192.12.36.114	A	bjcabc-36-114.slb.com
192.12.36.116	A	bjcabc-36-116.slb.com
192.12.36.119	A	bjcabc-36-119.slb.com
192.12.36.132	A+PTR	bjcabc-36-132.slb.com
192.12.36.139	A+PTR	bjcabc-36-139.slb.com
192.12.36.146	A	bjcabc-36-146.slb.com
192.12.36.157	A	bjcabc-36-157.slb.com
192.12.36.158	A+PTR	bjcabc-36-158.slb.com
192.12.36.162	A	bjcabc-36-162.slb.com
192.12.36.166	A	bjcabc-36-166.slb.com
192.12.36.175	A	bjcabc-36-175.slb.com
192.12.36.177	A+PTR	bjcabc-36-177.slb.com
192.12.36.180	A	bjcabc-36-180.slb.com
192.12.36.182	A	bjcabc-36-182.slb.com
192.12.36.184	A	bjcabc-36-184.slb.com
192.12.36.198	A	bjcabc-36-198.slb.com
192.12.36.206	A	bjcabc-36-206.slb.com
192.12.36.216	A+PTR	bjcabc-36-216.slb.com
192.12.36.222	A+PTR	bjcabc-36-222.slb.com
192.12.36.230	A+PTR	bjcabc-36-230.slb.com
192.12.36.248	A	bjcabc-36-248.slb.com
192.12.36.254	A	bjcabc-36-254.slb.com
192.12.36.255	A+PTR	bjcabc-36-255.slb.com
192.12.37.3	A+PTR	bjcabc-37-3.slb.com
192.12.37.5	A+PTR	bjcabc-37-5.slb.com
192.12.37.14	A	bjcabc-37-14.slb.com
192.12.37.18	A	bjcabc-37-18.slb.com
192.12.37.28	A	bjcabc-37-28.slb.com
192.12.37.39	A	bjcabc-37-39.slb.com
192.12.37.47	PTR	bjcabc-37-47.slb.com
192.12.37.50	A	bjcabc-37-50.slb.com
192.12.37.51	A+PTR	bjcabc-37-51.slb.com
192.12.37.55	A+PTR	bjcabc-37-55.slb.com
192.12.37.58	A	bjcabc-37-58.slb.com
192.12.37.69	A	bjcabc-37-69.slb.com
192.12.37.95	A	bjcabc-37-95.slb.com
192.12.37.96	A	bjcabc-37-96.slb.com
192.12.37.107	A+PTR	bjcabc-37-107.slb.com
192.12.37.111	A	bjcabc-37-111.slb.com
192.12.37.122	A+PTR	bjcabc-37-122.slb.com
192.12.37.124	A+PTR	bjcabc-37-124.slb.com
192.12.37.137	A	bjcabc-37-137.slb.com
192.12.37.141	A+PTR	bjcabc-37-141.slb.com
192.12.37.158	A+PTR	bjcabc-37-158.slb.com
192.12.37.159	A+PTR	bjcabc-37-159.slb.com
192.12.37.163	A+PTR	bjcabc-37-163.slb.com
192.12.37.194	A	bjcabc-37-194.slb.com
192.12.38.16	A+PTR	bjcabc-38-16.slb.com
192.12.38.19	A+PTR	bjcabc-38-19.slb.com
192.12.38.67	A+PTR	bjcabc-38-67.slb.com
192.12.38.116	A	bjcabc-38-116.slb.com
192.12.38.138	A+PTR	bjcabc-38-138.slb.com
192.12.38.153	A+PTR	bjcabc-38-153.slb.com
192.12.38.184	A+PTR	bjcabc-38-184.slb.com
192.12.38.187	A+PTR	bjcabc-38-187.slb.com
192.12.38.201	A+PTR	bjcabc-38-201.slb.com
192.12.38.205	A+PTR	bjcabc-38-205.slb.com
192.12.38.236	A+PTR	bjcabc-38-236.slb.com
192.12.38.243	A+PTR	bjcabc-38-243.slb.com
192.12.39.134	A+PTR	bjcabc-39-134.slb.com