Robtex

Up: 209.42.40.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 209.42.40.0/23
Down right: 209.42.42.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
209.42.40.3	PTR	hermod.goinfotek.com
209.42.40.4	A+PTR	static.user4.209.42.40.dsli.com
209.42.40.5	PTR	mail.goinfotek.net
209.42.40.14	A+PTR	static.user14.209.42.40.dsli.com
209.42.40.32	A+PTR	static.user32.209.42.40.dsli.com
209.42.40.49	A+PTR	static.user49.209.42.40.dsli.com
209.42.40.61	A+PTR	static.user61.209.42.40.dsli.com
209.42.40.66	A+PTR	static.user66.209.42.40.dsli.com
209.42.40.67	A+PTR	static.user67.209.42.40.dsli.com
209.42.40.67	A	mail.vox3.net
209.42.40.67	A	www.hcontrol.com
209.42.40.70	PTR	host-209-42-40-70.reverse.opticaltel.com
209.42.40.70	A	www.dsli.net
209.42.40.70	A	dsli.net
209.42.40.72	A+PTR	static.user72.209.42.40.dsli.com
209.42.40.74	A+PTR	static.user74.209.42.40.dsli.com
209.42.40.81	A+PTR	static.user81.209.42.40.dsli.com
209.42.40.83	PTR	mail.emaginesg.com
209.42.40.83	A	mail.myroofsystem.com
209.42.40.83	A	mail.vinportation.com
209.42.40.91	A+PTR	mail.vezinaconstruction.com
209.42.40.91	A	mail.countywideheavy.com
209.42.40.91	A	mail.redmanbuilders.com
209.42.40.96	A	static.user96.209.42.40.dsli.com
209.42.40.100	A	static.user100.209.42.40.dsli.com
209.42.40.101	A+PTR	static.user101.209.42.40.dsli.com
209.42.40.114	A+PTR	static.user114.209.42.40.dsli.com
209.42.40.115	A+PTR	static.user115.209.42.40.dsli.com
209.42.40.120	A+PTR	static.user120.209.42.40.dsli.com
209.42.40.126	A+PTR	static.user126.209.42.40.dsli.com
209.42.40.133	A+PTR	static.user133.209.42.40.dsli.com
209.42.40.144	A+PTR	static.user144.209.42.40.dsli.com
209.42.40.146	PTR	siginc.net
209.42.40.155	A+PTR	static.user155.209.42.40.dsli.com
209.42.40.162	A+PTR	static.user162.209.42.40.dsli.com
209.42.40.165	A+PTR	static.user165.209.42.40.dsli.com
209.42.40.170	A+PTR	static.user170.209.42.40.dsli.com
209.42.40.176	A+PTR	static.user176.209.42.40.dsli.com
209.42.40.177	PTR	static.user177.209.42.40.dsli.com
209.42.40.178	PTR	static.user178.209.42.40.dsli.com
209.42.40.179	A+PTR	static.user179.209.42.40.dsli.com
209.42.40.184	A+PTR	static.user184.209.42.40.dsli.com
209.42.40.185	A+PTR	static.user185.209.42.40.dsli.com
209.42.40.192	PTR	static.user192.209.42.40.dsli.com
209.42.40.200	A+PTR	static.user200.209.42.40.dsli.com
209.42.40.209	A+PTR	static.user209.209.42.40.dsli.com
209.42.40.216	A+PTR	static.user216.209.42.40.dsli.com
209.42.40.219	A+PTR	static.user219.209.42.40.dsli.com
209.42.40.245	A+PTR	static.user245.209.42.40.dsli.com
209.42.40.249	A+PTR	static.user249.209.42.40.dsli.com
209.42.40.252	A+PTR	static.user252.209.42.40.dsli.com
209.42.40.254	PTR	mail.triadpros.com
209.42.41.61	A+PTR	static.user61.209.42.41.dsli.com
209.42.41.67	PTR	hermod.goinfotek.com
209.42.41.68	PTR	mail.goinfotek.net
209.42.41.100	A+PTR	static.user100.209.42.41.dsli.com
209.42.41.103	A+PTR	static.user103.209.42.41.dsli.com
209.42.41.105	A+PTR	static.user105.209.42.41.dsli.com
209.42.41.107	A	mail.falcongroup.info
209.42.41.107	A	mail1.falconegroup.info
209.42.41.107	A	mail.thegardensmemorialpark.com
209.42.41.122	A	mail.yanelis.com
209.42.41.130	A	www.myloneranger.com
209.42.41.130	A	bienbarato.com
209.42.41.130	A	myloneranger.com
209.42.42.1	PTR	ds3.42-1-gr.mia.fl
209.42.42.2	PTR	ringsouth.com
209.42.42.3	A+PTR	static.user3.209.42.42.dsli.com
209.42.42.4	A+PTR	static.user4.209.42.42.dsli.com
209.42.42.5	A+PTR	static.user5.209.42.42.dsli.com
209.42.42.8	A+PTR	static.user8.209.42.42.dsli.com
209.42.42.11	A+PTR	static.user11.209.42.42.dsli.com
209.42.42.18	A+PTR	static.user18.209.42.42.dsli.com
209.42.42.20	A+PTR	static.user20.209.42.42.dsli.com
209.42.42.25	A+PTR	static.user25.209.42.42.dsli.com
209.42.42.26	A+PTR	static.user26.209.42.42.dsli.com
209.42.42.30	A+PTR	static.user30.209.42.42.dsli.com
209.42.42.31	A+PTR	static.user31.209.42.42.dsli.com
209.42.42.34	A+PTR	static.user34.209.42.42.dsli.com
209.42.42.41	A+PTR	static.user41.209.42.42.dsli.com
209.42.42.46	A+PTR	static.user46.209.42.42.dsli.com
209.42.42.47	PTR	static.user47.209.42.42.dsli.com
209.42.42.49	A+PTR	static.user49.209.42.42.dsli.com
209.42.42.52	A+PTR	static.user52.209.42.42.dsli.com
209.42.42.55	A+PTR	static.user55.209.42.42.dsli.com
209.42.42.56	A+PTR	static.user56.209.42.42.dsli.com
209.42.42.57	A+PTR	static.user57.209.42.42.dsli.com
209.42.42.62	A+PTR	static.user62.209.42.42.dsli.com
209.42.42.63	A+PTR	static.user63.209.42.42.dsli.com
209.42.42.65	PTR	static.user65.209.42.42.dsli.com
209.42.42.67	A	static.user67.209.42.42.dsli.com
209.42.42.68	A+PTR	static.user68.209.42.42.dsli.com
209.42.42.71	A+PTR	static.user71.209.42.42.dsli.com
209.42.42.74	A+PTR	static.user74.209.42.42.dsli.com
209.42.42.78	A+PTR	static.user78.209.42.42.dsli.com
209.42.42.79	A	static.user79.209.42.42.dsli.com
209.42.42.81	A+PTR	static.user81.209.42.42.dsli.com
209.42.42.82	A+PTR	static.user82.209.42.42.dsli.com
209.42.42.84	A+PTR	static.user84.209.42.42.dsli.com
209.42.42.90	PTR	static.user90.209.42.42.dsli.com
209.42.42.91	A+PTR	static.user91.209.42.42.dsli.com
209.42.42.93	A+PTR	static.user93.209.42.42.dsli.com
209.42.42.95	A+PTR	static.user95.209.42.42.dsli.com
209.42.42.99	PTR	mail.netvg.com
209.42.42.101	A+PTR	static.user101.209.42.42.dsli.com
209.42.42.103	PTR	static.user103.209.42.42.dsli.com
209.42.42.107	A+PTR	static.user107.209.42.42.dsli.com
209.42.42.109	A+PTR	static.user109.209.42.42.dsli.com
209.42.42.111	A+PTR	static.user111.209.42.42.dsli.com
209.42.42.114	A+PTR	static.user114.209.42.42.dsli.com
209.42.42.117	PTR	static.user117.209.42.42.dsli.com
209.42.42.118	PTR	static.user118.209.42.42.dsli.com
209.42.42.123	A+PTR	static.user123.209.42.42.dsli.com
209.42.42.124	A+PTR	static.user124.209.42.42.dsli.com
209.42.42.131	A+PTR	static.user131.209.42.42.dsli.com
209.42.42.133	A+PTR	static.user133.209.42.42.dsli.com
209.42.42.137	A+PTR	static.user137.209.42.42.dsli.com
209.42.42.140	A+PTR	static.user140.209.42.42.dsli.com
209.42.42.145	A+PTR	static.user145.209.42.42.dsli.com
209.42.42.153	A+PTR	static.user153.209.42.42.dsli.com
209.42.42.155	PTR	static.user155.209.42.42.dsli.com
209.42.42.157	A+PTR	static.user157.209.42.42.dsli.com
209.42.42.158	A+PTR	static.user158.209.42.42.dsli.com
209.42.42.160	A+PTR	static.user160.209.42.42.dsli.com
209.42.42.164	A+PTR	static.user164.209.42.42.dsli.com
209.42.42.170	A+PTR	static.user170.209.42.42.dsli.com
209.42.42.173	A+PTR	static.user173.209.42.42.dsli.com
209.42.42.175	A+PTR	static.user175.209.42.42.dsli.com
209.42.42.176	A+PTR	static.user176.209.42.42.dsli.com
209.42.42.178	A+PTR	static.user178.209.42.42.dsli.com
209.42.42.186	PTR	static.user186.209.42.42.dsli.com
209.42.42.191	A+PTR	static.user191.209.42.42.dsli.com
209.42.42.196	A+PTR	static.user196.209.42.42.dsli.com
209.42.42.197	PTR	static.user197.209.42.42.dsli.com
209.42.42.198	PTR	static.user198.209.42.42.dsli.com
209.42.42.199	PTR	static.user199.209.42.42.dsli.com
209.42.42.200	PTR	static.user200.209.42.42.dsli.com
209.42.42.207	A+PTR	static.user207.209.42.42.dsli.com
209.42.42.212	A+PTR	static.user212.209.42.42.dsli.com
209.42.42.215	PTR	static.user215.209.42.42.dsli.com
209.42.42.226	PTR	static.user226.209.42.42.dsli.com
209.42.42.227	A	static.user227.209.42.42.dsli.com
209.42.42.228	A+PTR	static.user228.209.42.42.dsli.com
209.42.42.229	A+PTR	static.user229.209.42.42.dsli.com
209.42.42.230	A+PTR	static.user230.209.42.42.dsli.com
209.42.42.231	A+PTR	static.user231.209.42.42.dsli.com
209.42.42.235	A+PTR	static.user235.209.42.42.dsli.com
209.42.42.239	A+PTR	static.user239.209.42.42.dsli.com
209.42.42.240	A+PTR	static.user240.209.42.42.dsli.com
209.42.42.241	A+PTR	static.user241.209.42.42.dsli.com
209.42.42.244	A+PTR	static.user244.209.42.42.dsli.com
209.42.42.248	A+PTR	static.user248.209.42.42.dsli.com
209.42.42.253	PTR	static.user253.209.42.42.dsli.com
209.42.43.9	A+PTR	static.user9.209.42.43.dsli.com
209.42.43.13	A+PTR	static.user13.209.42.43.dsli.com
209.42.43.14	A+PTR	static.user14.209.42.43.dsli.com
209.42.43.17	A+PTR	static.user17.209.42.43.dsli.com
209.42.43.22	A+PTR	static.user22.209.42.43.dsli.com
209.42.43.23	A+PTR	static.user23.209.42.43.dsli.com
209.42.43.38	A+PTR	static.user38.209.42.43.dsli.com
209.42.43.40	A+PTR	static.user40.209.42.43.dsli.com
209.42.43.43	A+PTR	static.user43.209.42.43.dsli.com
209.42.43.44	A+PTR	static.user44.209.42.43.dsli.com
209.42.43.45	A+PTR	static.user45.209.42.43.dsli.com
209.42.43.48	A+PTR	static.user48.209.42.43.dsli.com
209.42.43.50	A+PTR	static.user50.209.42.43.dsli.com
209.42.43.52	A+PTR	static.user52.209.42.43.dsli.com
209.42.43.55	A+PTR	static.user55.209.42.43.dsli.com
209.42.43.61	A+PTR	static.user61.209.42.43.dsli.com
209.42.43.85	A+PTR	static.user85.209.42.43.dsli.com
209.42.43.89	A+PTR	static.user89.209.42.43.dsli.com
209.42.43.94	A+PTR	static.user94.209.42.43.dsli.com
209.42.43.96	A+PTR	static.user96.209.42.43.dsli.com
209.42.43.97	A+PTR	static.user97.209.42.43.dsli.com
209.42.43.98	A+PTR	static.user98.209.42.43.dsli.com
209.42.43.100	PTR	static.user100.209.42.43.dsli.com
209.42.43.110	A+PTR	static.user110.209.42.43.dsli.com
209.42.43.120	A+PTR	static.user120.209.42.43.dsli.com
209.42.43.121	A+PTR	static.user121.209.42.43.dsli.com
209.42.43.128	A+PTR	static.user128.209.42.43.dsli.com
209.42.43.129	A+PTR	static.user129.209.42.43.dsli.com
209.42.43.133	A+PTR	static.user133.209.42.43.dsli.com
209.42.43.137	A+PTR	static.user137.209.42.43.dsli.com
209.42.43.138	A+PTR	static.user138.209.42.43.dsli.com
209.42.43.143	A+PTR	static.user143.209.42.43.dsli.com
209.42.43.144	A+PTR	static.user144.209.42.43.dsli.com
209.42.43.145	A+PTR	static.user145.209.42.43.dsli.com
209.42.43.152	A+PTR	static.user152.209.42.43.dsli.com
209.42.43.153	A+PTR	static.user153.209.42.43.dsli.com
209.42.43.159	PTR	mail.hewett-kier.com.43.42.209.in-addr.arpa
209.42.43.161	A+PTR	static.user161.209.42.43.dsli.com
209.42.43.166	A+PTR	static.user166.209.42.43.dsli.com
209.42.43.173	A+PTR	static.user173.209.42.43.dsli.com
209.42.43.176	A+PTR	static.user176.209.42.43.dsli.com
209.42.43.182	A+PTR	static.user182.209.42.43.dsli.com
209.42.43.183	A+PTR	static.user183.209.42.43.dsli.com
209.42.43.185	A+PTR	static.user185.209.42.43.dsli.com
209.42.43.187	A+PTR	static.user187.209.42.43.dsli.com
209.42.43.192	A+PTR	static.user192.209.42.43.dsli.com
209.42.43.194	A+PTR	static.user194.209.42.43.dsli.com
209.42.43.195	A+PTR	static.user195.209.42.43.dsli.com
209.42.43.199	A+PTR	static.user199.209.42.43.dsli.com
209.42.43.201	A+PTR	static.user201.209.42.43.dsli.com
209.42.43.203	A+PTR	static.user203.209.42.43.dsli.com
209.42.43.205	A+PTR	static.user205.209.42.43.dsli.com
209.42.43.212	A+PTR	static.user212.209.42.43.dsli.com
209.42.43.217	A+PTR	static.user217.209.42.43.dsli.com
209.42.43.230	A+PTR	static.user230.209.42.43.dsli.com
209.42.43.232	A+PTR	static.user232.209.42.43.dsli.com
209.42.43.233	A+PTR	static.user233.209.42.43.dsli.com
209.42.43.237	A+PTR	static.user237.209.42.43.dsli.com
209.42.43.238	A+PTR	static.user238.209.42.43.dsli.com
209.42.43.243	A+PTR	static.user243.209.42.43.dsli.com
209.42.43.253	A+PTR	static.user253.209.42.43.dsli.com