Robtex

Up: 167.238.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 167.239.0.0/17
Down right: 167.239.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
167.239.10.17	A	host-17-10-239-167.aep.com
167.239.10.37	A	host-37-10-239-167.aep.com
167.239.10.55	A	host-55-10-239-167.aep.com
167.239.10.75	A	host-75-10-239-167.aep.com
167.239.12.34	A+PTR	host-34-12-239-167.aep.com
167.239.13.2	A+PTR	host-2-13-239-167.aep.com
167.239.14.74	A+PTR	host-74-14-239-167.aep.com
167.239.14.174	A+PTR	host-174-14-239-167.aep.com
167.239.17.2	A+PTR	host-2-17-239-167.aep.com
167.239.18.2	A+PTR	host-2-18-239-167.aep.com
167.239.21.208	A	host-208-21-239-167.aep.com
167.239.22.2	A+PTR	host-2-22-239-167.aep.com
167.239.22.3	A	host-3-22-239-167.aep.com
167.239.22.9	A	host-9-22-239-167.aep.com
167.239.22.11	A	host-11-22-239-167.aep.com
167.239.23.43	A	host-43-23-239-167.aep.com
167.239.74.162	A	host-162-74-239-167.aep.com
167.239.85.38	A+PTR	host-38-85-239-167.aep.com
167.239.86.97	A+PTR	host-97-86-239-167.aep.com
167.239.86.99	A+PTR	host-99-86-239-167.aep.com
167.239.87.198	A	host-198-87-239-167.aep.com
167.239.127.12	A	et4838.aep.com
167.239.127.22	A	et4848.aep.com
167.239.127.35	A	et4861.aep.com
167.239.127.55	A	et4881.aep.com
167.239.128.165	A	et165.aep.com
167.239.128.243	A+PTR	et243.aep.com
167.239.134.128	A+PTR	et1652.aep.com
167.239.137.9	A	et2295.aep.com
167.239.137.19	A	et2305.aep.com
167.239.137.28	A	et2314.aep.com
167.239.137.35	A	et2321.aep.com
167.239.139.159	A	et2953.aep.com
167.239.141.98	A	et3400.aep.com
167.239.142.223	A	et3779.aep.com
167.239.145.18	A	et5352.aep.com
167.239.145.26	A	et5360.aep.com
167.239.145.67	A	et5401.aep.com
167.239.145.75	A	et5409.aep.com
167.239.148.2	A	et6098.aep.com
167.239.148.6	A	et6102.aep.com
167.239.148.47	A	et6143.aep.com
167.239.148.93	A	et6189.aep.com
167.239.159.21	A	et8911.aep.com
167.239.159.45	A	et8935.aep.com
167.239.159.108	A	et8998.aep.com
167.239.159.138	A	et9028.aep.com
167.239.176.1	A+PTR	ns1.aep.com
167.239.176.1	A	ohcodns1.aep.com
167.239.176.2	A+PTR	ns3.aep.com
167.239.176.3	A+PTR	ns2.aep.com
167.239.192.12	A	hos000056.aep.com
167.239.192.16	A	hos000060.aep.com
167.239.192.48	A	hos000092.aep.com
167.239.192.59	A	hos000103.aep.com
167.239.194.1	A	hos00551.aep.com
167.239.194.4	PTR	hos00554.aep.com
167.239.194.17	A	hos00567.aep.com
167.239.194.21	A	hos00571.aep.com
167.239.194.67	A	hos00617.aep.com
167.239.196.7	A	hos01065.aep.com
167.239.196.28	A	hos01086.aep.com
167.239.196.37	A	hos01095.aep.com
167.239.196.41	A	hos01099.aep.com
167.239.199.187	A	hos02007.aep.com
167.239.200.2	A+PTR	hos02076.aep.com
167.239.203.15	A	hos02851.aep.com
167.239.203.40	A	hos02876.aep.com
167.239.203.56	A	hos02892.aep.com
167.239.203.101	A	hos02937.aep.com
167.239.207.179	A+PTR	hos04031.aep.com
167.239.209.62	A	hos04422.aep.com
167.239.210.162	A	hos04776.aep.com
167.239.211.160	A	hos05028.aep.com
167.239.212.4	A+PTR	hos05126.aep.com
167.239.212.7	A	hos05129.aep.com
167.239.212.25	A	hos05147.aep.com
167.239.212.51	A	hos05173.aep.com
167.239.213.155	A	hos05531.aep.com
167.239.214.171	A	hos05801.aep.com
167.239.220.19	A	hos07173.aep.com
167.239.220.92	A	hos07246.aep.com
167.239.220.94	A	hos07248.aep.com
167.239.220.118	A	hos07272.aep.com
167.239.221.80	A+PTR	hos07488.aep.com
167.239.221.82	A+PTR	hos07490.aep.com
167.239.222.155	A	hos07817.aep.com
167.239.222.167	A	hos07829.aep.com
167.239.222.186	A	mailmta1.aep.com
167.239.222.193	A	hos07855.aep.com
167.239.223.3	A+PTR	hos07919.aep.com
167.239.223.4	A+PTR	hos07920.aep.com
167.239.223.11	A	hos07927.aep.com
167.239.223.16	A	hos07932.aep.com
167.239.223.200	A	transourceenergy.com
167.239.223.200	A	www.desertskywind.com
167.239.223.200	A	dolantechcenter.com
167.239.224.50	A	hos24473.aep.com
167.239.224.64	A	hos24487.aep.com
167.239.224.75	A	awsecure3.aep.com
167.239.224.102	A	hos24525.aep.com
167.239.226.24	A	hrnow.aep.com
167.239.226.24	A	transourceenergy.com
167.239.226.24	A	www.desertskywind.com
167.239.229.37	A	hos25730.aep.com
167.239.229.38	A+PTR	hos25731.aep.com
167.239.229.39	A	hos25732.aep.com
167.239.231.194	A	hos26395.aep.com
167.239.244.14	A	hos29517.aep.com
167.239.244.59	A	hos29562.aep.com
167.239.244.76	A	hos29579.aep.com
167.239.244.81	A	hos29584.aep.com
167.239.246.19	A	hos30030.aep.com
167.239.246.50	A	hos30061.aep.com
167.239.246.121	A	hos30132.aep.com
167.239.246.170	A	hos30181.aep.com
167.239.248.45	A	hos30564.aep.com
167.239.248.99	A	hos30618.aep.com
167.239.248.239	A	hos30758.aep.com