Robtex

Up: 66.73.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 66.73.128.0/21
Down right: 66.73.136.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.73.129.35	A	unused.localline.com
66.73.130.3	A	unused.localline.com
66.73.130.4	A	unused.localline.com
66.73.130.5	A	unused.localline.com
66.73.130.6	A	unused.localline.com
66.73.130.7	A	unused.localline.com
66.73.130.8	A	unused.localline.com
66.73.130.9	A	unused.localline.com
66.73.130.10	A	unused.localline.com
66.73.130.11	A	unused.localline.com
66.73.130.12	A	unused.localline.com
66.73.134.82	A	66-73-134-82.ded.ameritech.net
66.73.134.133	A	66-73-134-133.ded.ameritech.net
66.73.134.135	A	66-73-134-135.ded.ameritech.net
66.73.134.143	A	66-73-134-143.ded.ameritech.net
66.73.134.150	A	66-73-134-150.ded.ameritech.net
66.73.134.151	A	66-73-134-151.ded.ameritech.net
66.73.134.152	A	66-73-134-152.ded.ameritech.net
66.73.134.156	A	66-73-134-156.ded.ameritech.net
66.73.134.162	A	66-73-134-162.ded.ameritech.net
66.73.134.163	A	66-73-134-163.ded.ameritech.net
66.73.134.164	A	66-73-134-164.ded.ameritech.net
66.73.134.165	A	66-73-134-165.ded.ameritech.net
66.73.134.179	A	66-73-134-179.ded.ameritech.net
66.73.134.180	A	66-73-134-180.ded.ameritech.net
66.73.134.185	A	66-73-134-185.ded.ameritech.net
66.73.134.187	A	66-73-134-187.ded.ameritech.net
66.73.134.196	A	66-73-134-196.ded.ameritech.net
66.73.134.200	A	66-73-134-200.ded.ameritech.net
66.73.134.201	A	66-73-134-201.ded.ameritech.net
66.73.134.202	A	66-73-134-202.ded.ameritech.net
66.73.134.209	A	66-73-134-209.ded.ameritech.net
66.73.134.212	A	66-73-134-212.ded.ameritech.net
66.73.134.213	A	66-73-134-213.ded.ameritech.net
66.73.134.214	A	66-73-134-214.ded.ameritech.net
66.73.134.230	A	66-73-134-230.ded.ameritech.net
66.73.134.231	A	66-73-134-231.ded.ameritech.net
66.73.134.236	A	66-73-134-236.ded.ameritech.net
66.73.134.242	A	66-73-134-242.ded.ameritech.net
66.73.134.248	A	66-73-134-248.ded.ameritech.net
66.73.136.1	A	dmzgateway.msdeng.com
66.73.136.2	A	ns1.msdeng.com
66.73.136.8	A	mail2.msdeng.com
66.73.136.8	A	msdweb2.msdeng.com
66.73.136.11	A	msdweb2.msdeng.com
66.73.136.16	A	5304xl.msdeng.com
66.73.136.40	A	ww2.msdeng.com
66.73.136.50	A+PTR	www.msdeng.com
66.73.136.50	PTR	www.msdeng.net
66.73.136.50	PTR	www.msdeng.org
66.73.136.128	A	ns3.msdeng.com
66.73.136.244	A	msdmaps.msdeng.com
66.73.136.245	A+PTR	exchange.msdeng.com
66.73.136.245	A	oa.msdeng.com
66.73.136.245	A	sync.msdeng.com
66.73.136.246	A	sync.msdeng.com
66.73.136.247	A	oa.msdeng.com
66.73.138.90	A	adsl-66-73-138-90.dsl.ipltin.ameritech.net
66.73.138.129	A	mail.moseleylabs.com
66.73.141.84	A	66-73-141-84.ded.ameritech.net
66.73.141.130	A	66-73-141-130.ded.ameritech.net
66.73.141.137	A	66-73-141-137.ded.ameritech.net
66.73.141.147	A	66-73-141-147.ded.ameritech.net
66.73.141.167	A	66-73-141-167.ded.ameritech.net
66.73.141.174	A	66-73-141-174.ded.ameritech.net
66.73.141.175	A	66-73-141-175.ded.ameritech.net
66.73.141.180	A	66-73-141-180.ded.ameritech.net
66.73.141.205	A	66-73-141-205.ded.ameritech.net
66.73.141.219	A	66-73-141-219.ded.ameritech.net
66.73.141.224	A	66-73-141-224.ded.ameritech.net
66.73.141.249	A	66-73-141-249.ded.ameritech.net
66.73.141.252	A	66-73-141-252.ded.ameritech.net
66.73.143.130	A	66-73-143-130.ded.ameritech.net
66.73.143.138	A	66-73-143-138.ded.ameritech.net
66.73.143.148	A	66-73-143-148.ded.ameritech.net
66.73.143.149	A	66-73-143-149.ded.ameritech.net
66.73.143.150	A	66-73-143-150.ded.ameritech.net
66.73.143.156	A	66-73-143-156.ded.ameritech.net
66.73.143.162	PTR	midwestgraphics.com
66.73.143.164	A	mail.midwestgraphics.com