Robtex

Up: 209.42.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 209.42.48.0/22
Down right: 209.42.52.0/22

IP	Type	Hostname
209.42.49.198	A+PTR	static.user198.209.42.49.dsli.com
209.42.49.235	A+PTR	static.user235.209.42.49.dsli.com
209.42.49.241	A+PTR	static.user241.209.42.49.dsli.com
209.42.50.1	PTR	ds3.47-1-gr.mia.fl
209.42.50.3	A+PTR	static.user3.209.42.50.dsli.com
209.42.50.5	A	static.user5.209.42.50.dsli.com
209.42.50.7	A	static.user7.209.42.50.dsli.com
209.42.50.12	A	static.user12.209.42.50.dsli.com
209.42.50.13	A	static.user13.209.42.50.dsli.com
209.42.50.14	A	static.user14.209.42.50.dsli.com
209.42.50.16	A+PTR	static.user16.209.42.50.dsli.com
209.42.50.17	A+PTR	static.user17.209.42.50.dsli.com
209.42.50.18	A+PTR	static.user18.209.42.50.dsli.com
209.42.50.21	A	static.user21.209.42.50.dsli.com
209.42.50.27	A+PTR	static.user27.209.42.50.dsli.com
209.42.50.28	A	static.user28.209.42.50.dsli.com
209.42.50.34	A+PTR	static.user34.209.42.50.dsli.com
209.42.50.35	PTR	ebrmiami.com
209.42.50.43	A+PTR	static.user43.209.42.50.dsli.com
209.42.50.47	A	static.user47.209.42.50.dsli.com
209.42.50.48	A+PTR	static.user48.209.42.50.dsli.com
209.42.50.60	A	static.user60.209.42.50.dsli.com
209.42.50.62	A	static.user62.209.42.50.dsli.com
209.42.50.76	PTR	dnsinc.no-ip.info
209.42.50.94	A	static.user94.209.42.50.dsli.com
209.42.50.99	A+PTR	static.user99.209.42.50.dsli.com
209.42.50.101	A	static.user101.209.42.50.dsli.com
209.42.50.102	A	static.user102.209.42.50.dsli.com
209.42.50.103	A	static.user103.209.42.50.dsli.com
209.42.50.104	A+PTR	static.user104.209.42.50.dsli.com
209.42.50.106	A+PTR	static.user106.209.42.50.dsli.com
209.42.50.108	A	static.user108.209.42.50.dsli.com
209.42.50.109	A	static.user109.209.42.50.dsli.com
209.42.50.112	A+PTR	static.user112.209.42.50.dsli.com
209.42.50.114	A+PTR	static.user114.209.42.50.dsli.com
209.42.50.115	A+PTR	static.user115.209.42.50.dsli.com
209.42.50.120	A+PTR	static.user120.209.42.50.dsli.com
209.42.50.125	A	static.user125.209.42.50.dsli.com
209.42.50.126	A	static.user126.209.42.50.dsli.com
209.42.50.127	A	static.user127.209.42.50.dsli.com
209.42.50.128	A+PTR	static.user128.209.42.50.dsli.com
209.42.50.131	A+PTR	static.user131.209.42.50.dsli.com
209.42.50.134	A	static.user134.209.42.50.dsli.com
209.42.50.135	A	static.user135.209.42.50.dsli.com
209.42.50.136	A+PTR	static.user136.209.42.50.dsli.com
209.42.50.137	A+PTR	static.user137.209.42.50.dsli.com
209.42.50.139	A+PTR	static.user139.209.42.50.dsli.com
209.42.50.145	A+PTR	static.user145.209.42.50.dsli.com
209.42.50.146	A+PTR	static.user146.209.42.50.dsli.com
209.42.50.148	A	static.user148.209.42.50.dsli.com
209.42.50.150	A	static.user150.209.42.50.dsli.com
209.42.50.162	PTR	mail.mail2.cc
209.42.50.176	A+PTR	static.user176.209.42.50.dsli.com
209.42.50.179	A+PTR	static.user179.209.42.50.dsli.com
209.42.50.185	A+PTR	static.user185.209.42.50.dsli.com
209.42.50.188	A	static.user188.209.42.50.dsli.com
209.42.50.189	A	static.user189.209.42.50.dsli.com
209.42.50.191	A	static.user191.209.42.50.dsli.com
209.42.50.193	A+PTR	static.user193.209.42.50.dsli.com
209.42.50.202	A+PTR	static.user202.209.42.50.dsli.com
209.42.50.203	A+PTR	static.user203.209.42.50.dsli.com
209.42.50.204	A	static.user204.209.42.50.dsli.com
209.42.50.205	A	static.user205.209.42.50.dsli.com
209.42.50.208	A+PTR	static.user208.209.42.50.dsli.com
209.42.50.216	A+PTR	static.user216.209.42.50.dsli.com
209.42.50.218	A+PTR	static.user218.209.42.50.dsli.com
209.42.50.226	A+PTR	static.user226.209.42.50.dsli.com
209.42.50.227	A+PTR	static.user227.209.42.50.dsli.com
209.42.50.231	A	static.user231.209.42.50.dsli.com
209.42.50.234	A+PTR	static.user234.209.42.50.dsli.com
209.42.50.239	A	static.user239.209.42.50.dsli.com
209.42.50.242	A+PTR	static.user242.209.42.50.dsli.com
209.42.50.247	A	static.user247.209.42.50.dsli.com
209.42.50.249	A+PTR	static.user249.209.42.50.dsli.com
209.42.50.251	A+PTR	static.user251.209.42.50.dsli.com
209.42.50.253	A	static.user253.209.42.50.dsli.com
209.42.51.27	A	voice.dsli.com
209.42.52.3	PTR	static.user3.209.42.52.dsli.com
209.42.52.4	PTR	static.user4.209.42.52.dsli.com
209.42.52.10	PTR	static.user10.209.42.52.dsli.com
209.42.52.26	A	ah.pciicp.com
209.42.52.50	A+PTR	static.user50.209.42.52.dsli.com
209.42.52.59	A+PTR	static.user59.209.42.52.dsli.com
209.42.52.101	A	static.user101.209.42.52.dsli.com
209.42.53.6	A	mail.deguardiola.com
209.42.53.30	A	webmail.ringemann.com
209.42.53.32	A+PTR	static.user32.209.42.53.dsli.com
209.42.53.52	A	northbell.us
209.42.53.52	A	sip1.northbell.net
209.42.53.52	A	northbellperu.com
209.42.53.53	A	mail.microtel.net
209.42.53.54	A	mail2.caricogroup.com
209.42.53.60	A	mail.caricogroup.com
209.42.53.60	A	static.user60.209.42.53.dsli.com
209.42.53.60	A	mail2.caricogroup.com
209.42.53.62	A	mail.caricogroup.com
209.42.53.62	A	mail.northbell.net
209.42.53.83	PTR	static.user83.209.42.53.dsli.com
209.42.53.96	A	static.user96.209.42.53.dsli.com
209.42.53.119	A	gwpartners.biz
209.42.53.192	A	static.user192.209.42.53.dsli.com
209.42.53.215	A	gw.kcl.net
209.42.54.34	A+PTR	static.user34.209.42.54.dsli.com
209.42.54.35	A	staging2.sdsol.com
209.42.54.104	A+PTR	static.user104.209.42.54.dsli.com
209.42.54.114	A+PTR	static.user114.209.42.54.dsli.com
209.42.54.120	A+PTR	static.user120.209.42.54.dsli.com
209.42.54.122	A	mail.yukonmiami.com
209.42.54.122	A	yukonmiami.com
209.42.54.146	A+PTR	static.user146.209.42.54.dsli.com
209.42.54.147	PTR	static.user147.209.42.54.dsli.com
209.42.54.180	A	static.user180.209.42.54.dsli.com
209.42.54.246	A	static.user246.209.42.54.dsli.com
209.42.55.66	PTR	mail.naturesflowers.com
209.42.55.132	A	static.user132.209.42.55.dsli.com
209.42.55.218	PTR	host-209-42-55-218.reverse.opticaltel.com
209.42.55.218	A	oracle.cbt.edu
209.42.55.220	A	cbtstudentdc.cbtstudent.com
209.42.55.220	A	cbtstudent.com