Robtex

Up: 69.38.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 69.38.192.0/21
Down right: 69.38.200.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
69.38.192.1	PTR	f7-2.cr.chi1.il.towerstream.com
69.38.192.34	PTR	auth02.towerstream.net.192.38.69.in-addr.arpa
69.38.192.34	A	madhatter.towerstream.com
69.38.192.66	A+PTR	chicago.shelbournedevelopment.com
69.38.192.170	PTR	mail.vlandcorp.com
69.38.193.67	A	mail-backup.instituteonline.com
69.38.193.132	PTR	ns1.mybackupdns.com
69.38.193.150	A	0-3-phx.xensub.net
69.38.193.202	PTR	69-38-193-202.il.towerstream.net
69.38.193.202	A	mail.recyclingforcharity.org
69.38.194.35	A	exchange2010.lagrou.com
69.38.194.36	A+PTR	chicagocold.com
69.38.194.36	A+PTR	lagrou.com
69.38.194.36	A+PTR	www.chicagocold.com
69.38.194.50	A	chicagocold.com
69.38.194.66	A	qa.simpartners.com
69.38.194.66	A	allstate.qa.simpartners.com
69.38.194.93	PTR	mx-g.cpoint.net
69.38.194.106	A	fez.ipgbook.com
69.38.194.130	PTR	chi01-crip23-15624am3.il.towerstream.com
69.38.194.133	A	pridestock.com
69.38.194.154	PTR	gigo.callttc.com
69.38.194.154	PTR	gigo.ttc-ms.com
69.38.194.154	PTR	gigo.ttcmarketingsolutions.com
69.38.194.210	A	1goose.com
69.38.196.10	A+PTR	mail2.ldrind.com
69.38.196.11	A	edi.ldrind.com
69.38.196.126	PTR	mail.lancaster-hg.com
69.38.196.131	A	smtp2.jernberg.com
69.38.196.182	A	proof2.radioflyer.com
69.38.196.211	A	ftp.radiusit.com
69.38.197.2	A	ns2.mailrecordm.archchicago.org
69.38.197.2	A	meyer-astro.archchicago.org
69.38.197.23	A	smtp-spam.archchicago.org
69.38.197.179	PTR	179-meyer-tower.archchicago.org
69.38.197.223	A	mail3.mailrecordm.archchicago.org
69.38.197.224	PTR	224-meyer-tower.archchicago.org
69.38.197.224	A	mail4.mailrecordm.archchicago.org
69.38.198.3	PTR	chi.silverip.net
69.38.198.12	A	smtp.broadacre.com
69.38.198.12	A	mail.copleyadvisors.com
69.38.198.12	A	mail.broadacre.com
69.38.198.16	PTR	chi.silverip.net
69.38.198.17	PTR	chi.silverip.net
69.38.198.18	PTR	chi.silverip.net
69.38.198.19	PTR	chi.silverip.net
69.38.198.33	PTR	chi.silverip.net
69.38.198.49	PTR	chi.silverip.net
69.38.198.83	PTR	chi.silverip.net
69.38.198.97	PTR	chi.silverip.net
69.38.198.113	PTR	chi.silverip.net
69.38.198.144	PTR	chi.silverip.net
69.38.198.195	PTR	chi.silverip.net
69.38.198.225	PTR	chi.silverip.net
69.38.198.226	PTR	chi.silverip.net
69.38.200.29	PTR	mail.romartrans.com
69.38.200.67	A	heinlein.ldrindustries.com
69.38.200.67	A	*.ldrind.com
69.38.200.69	PTR	mail.ldrind.com
69.38.200.73	PTR	smtp.ldrind.com
69.38.200.75	PTR	edi.ldrind.com
69.38.200.138	A+PTR	fsc-exch-01.freedmanseat.com
69.38.200.141	A	mail.freedmanseating.com
69.38.200.141	A	mail.freedmanseat.com
69.38.200.197	PTR	email.wynright.com
69.38.200.251	PTR	usmex.unitedscrap.com
69.38.202.19	PTR	chi.silverip.net
69.38.202.35	PTR	chi.silverip.net
69.38.202.49	PTR	chi.silverip.net
69.38.202.83	PTR	chi.silverip.net
69.38.202.147	PTR	chi.silverip.net
69.38.202.160	PTR	chi.silverip.net
69.38.202.177	PTR	chi.silverip.net
69.38.202.179	PTR	chi.silverip.net
69.38.202.194	PTR	chi.silverip.net
69.38.202.195	PTR	chi.silverip.net
69.38.202.224	PTR	chi.silverip.net
69.38.202.240	PTR	chi.silverip.net
69.38.203.70	PTR	mail1.factor58.net
69.38.203.138	PTR	ns2.noble.net
69.38.203.171	A+PTR	chicago.andersonmiller.com
69.38.203.181	A	exch.changingworlds.org
69.38.203.229	PTR	webmail.livingwd.org
69.38.204.30	A	lamarche.info
69.38.205.74	A	patternassociates.com
69.38.205.130	PTR	916-1000-130.colum.edu
69.38.205.130	A	mail.burnsent.com
69.38.205.200	A	ecommercearchitects.com
69.38.205.245	A	northportinvestments.com