Robtex

Up: 192.139.16.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.139.17.0/25
Down right: 192.139.17.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.139.17.1	A+PTR	ns.avotus.com
192.139.17.2	A+PTR	ftp.avotus.net
192.139.17.3	A	mail.avotus.net
192.139.17.4	PTR	s4.avotus.net
192.139.17.5	A+PTR	ftp.avotus.com
192.139.17.8	A+PTR	mail1.avotus.com
192.139.17.9	PTR	mail.avotus.com
192.139.17.10	A+PTR	smtp.avotus.com
192.139.17.12	A+PTR	www.avotus.net
192.139.17.12	A	avotus.net
192.139.17.13	A+PTR	www1.avotus.net
192.139.17.14	PTR	mail.avotus.net
192.139.17.17	PTR	www5.avotus.net
192.139.17.18	A	www11.avotus.net
192.139.17.20	PTR	corpweb3.avotus.com
192.139.17.21	PTR	corpweb1.avotus.com
192.139.17.21	A	www.avotusindia.com
192.139.17.21	A	www.avotus.com
192.139.17.22	A+PTR	corpweb2.avotus.com
192.139.17.25	A	icm.avotus.com
192.139.17.26	A+PTR	www4.avotus.net
192.139.17.27	A+PTR	switchview.net
192.139.17.27	A	www.switchview.net
192.139.17.28	A	bellmcs.switchview.net
192.139.17.30	A+PTR	bellmcs.avotus.net
192.139.17.31	A+PTR	avaya.avotus.net
192.139.17.33	A+PTR	sasktel.avotus.net
192.139.17.34	A+PTR	icmsaas.avotus.com
192.139.17.35	A+PTR	ae20.avotus.net
192.139.17.36	A+PTR	ae21.avotus.net
192.139.17.38	PTR	ae22.avotus.net
192.139.17.39	A+PTR	ae23.avotus.net
192.139.17.40	A+PTR	ae24.avotus.net
192.139.17.41	A+PTR	ae25.avotus.net
192.139.17.42	A+PTR	ae26.avotus.net
192.139.17.45	A	aeweb01.avotus.net
192.139.17.116	A+PTR	ims.switchview.net
192.139.17.117	A+PTR	ims.avotus.com
192.139.17.120	A+PTR	spamsync.avotus.com
192.139.17.136	PTR	ocsng.avotus.com
192.139.17.137	PTR	salescentral.avotus.com
192.139.17.139	PTR	ae23b.avotus.com
192.139.17.140	PTR	icmsaasb.avotus.com
192.139.17.150	PTR	icm.avotus.com
192.139.17.151	PTR	analysis.avotus.com
192.139.17.178	PTR	icmdemo1.avotus.com
192.139.17.194	PTR	www.switchview.net
192.139.17.199	A+PTR	dmzbak.avotus.com
192.139.17.201	PTR	stageweb01.avotus.net
192.139.17.230	PTR	pbx1.avotus.com
192.139.17.231	PTR	pbx2.avotus.com