Robtex

Up: 115.30.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 115.30.32.0/21
Down right: 115.30.40.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
115.30.32.0	PTR	115-30-32-0.users.engin.com.au
115.30.32.0	A	0.32.30.115.sta.engin.com.au
115.30.32.17	A+PTR	115-30-32-17.users.engin.com.au
115.30.32.34	A+PTR	34.32.30.115.sta.engin.com.au
115.30.32.36	A	36.32.30.115.sta.engin.com.au
115.30.32.43	A	43.32.30.115.sta.engin.com.au
115.30.32.59	A	59.32.30.115.sta.engin.com.au
115.30.32.128	A+PTR	128.32.30.115.sta.engin.com.au
115.30.32.150	A	150.32.30.115.sta.engin.com.au
115.30.32.162	PTR	115-30-32-162.users.engin.com.au
115.30.32.194	A+PTR	194.32.30.115.sta.engin.com.au
115.30.32.219	A	219.32.30.115.sta.engin.com.au
115.30.33.0	PTR	115-30-33-0.users.engin.com.au
115.30.33.0	A	0.33.30.115.sta.engin.com.au
115.30.33.14	A	115-30-33-14.users.engin.com.au
115.30.33.17	A+PTR	17.33.30.115.sta.engin.com.au
115.30.33.171	A	171.33.30.115.sta.engin.com.au
115.30.33.171	A	remote.cellarbrate.com.au
115.30.33.171	A	remote.ctellar.com.au
115.30.34.0	PTR	115-30-34-0.users.engin.com.au
115.30.34.0	A	0.34.30.115.sta.engin.com.au
115.30.34.59	A	59.34.30.115.sta.engin.com.au
115.30.34.95	A	95.34.30.115.sta.engin.com.au
115.30.34.133	A	115-30-34-133.users.engin.com.au
115.30.34.199	A	199.34.30.115.sta.engin.com.au
115.30.34.215	A	215.34.30.115.sta.engin.com.au
115.30.35.0	PTR	115-30-35-0.sta.engin.com.au
115.30.35.0	A	0.35.30.115.sta.engin.com.au
115.30.35.210	PTR	115-30-35-210.sta.engin.com.au
115.30.35.210	A	115-30-35-210.users.engin.com.au
115.30.36.0	PTR	115-30-36-0.users.engin.com.au
115.30.36.0	A	0.36.30.115.sta.engin.com.au
115.30.36.51	A+PTR	51.36.30.115.sta.engin.com.au
115.30.36.59	A	59.36.30.115.sta.engin.com.au
115.30.36.94	A	mail.supportnet.net.au
115.30.36.110	A	mail.byrnelawyers.com.au
115.30.36.110	A	mail2.byrnelawyers.com.au
115.30.36.230	A	hteunis.com
115.30.36.230	A	230.36.30.115.sta.engin.com.au
115.30.37.0	PTR	115-30-37-0.users.engin.com.au
115.30.37.0	A	0.37.30.115.sta.engin.com.au
115.30.37.37	A	alegnasolutions.net.au
115.30.37.37	A	115-30-37-37.users.engin.com.au
115.30.37.96	A	sydney.noahsrule.com.au
115.30.37.112	PTR	112.37.30.115.sta.engin.com.au
115.30.37.220	A	115-30-37-220.users.engin.com.au
115.30.37.227	PTR	115-30-37-227.users.engin.com.au
115.30.37.227	A	mail.aussiebills.com.au
115.30.37.230	A	115-30-37-230.users.engin.com.au
115.30.38.0	PTR	115-30-38-0.users.engin.com.au
115.30.38.0	A	0.38.30.115.sta.engin.com.au
115.30.38.19	PTR	115-30-38-19.users.engin.com.au
115.30.38.43	A	43.38.30.115.sta.engin.com.au
115.30.38.58	A	58.38.30.115.sta.engin.com.au
115.30.38.59	A	59.38.30.115.sta.engin.com.au
115.30.39.0	PTR	115-30-39-0.sta.engin.com.au
115.30.39.0	A	0.39.30.115.sta.engin.com.au
115.30.39.1	A+PTR	1.39.30.115.sta.engin.com.au
115.30.39.162	PTR	115-30-39-162.users.engin.com.au
115.30.40.0	A+PTR	115-30-40-0.users.engin.com.au
115.30.40.43	A	43.40.30.115.sta.engin.com.au
115.30.40.59	A	59.40.30.115.sta.engin.com.au
115.30.40.111	A	115-30-40-111.users.engin.com.au
115.30.40.139	A	mail.access2arts.org.au
115.30.40.142	A	remote.pdhaccounting.com.au
115.30.40.241	A	remote.professionalaccounting.com.au
115.30.41.0	PTR	115-30-41-0.sta.engin.com.au
115.30.41.0	A	0.41.30.115.sta.engin.com.au
115.30.41.124	A	mail.naccnotifications.com
115.30.41.174	A	monsonsingapore.com
115.30.41.230	A	australianbrasswork.com
115.30.41.230	A	mail.nmeinc.net
115.30.41.230	A	christiangermaine.com
115.30.42.0	PTR	115-30-42-0.users.engin.com.au
115.30.42.0	A	0.42.30.115.sta.engin.com.au
115.30.42.13	A	woodbrownco.com.au
115.30.42.43	A	43.42.30.115.sta.engin.com.au
115.30.42.51	A+PTR	51.42.30.115.sta.engin.com.au
115.30.42.55	A	55.42.30.115.sta.engin.com.au
115.30.42.56	A	extraterrestrialsex.com
115.30.42.56	A	snails.email
115.30.42.246	A	mail.toolbox.id.au
115.30.43.0	PTR	115-30-43-0.users.engin.com.au
115.30.43.0	A	0.43.30.115.sta.engin.com.au
115.30.43.43	A	43.43.30.115.sta.engin.com.au
115.30.43.51	A+PTR	51.43.30.115.sta.engin.com.au
115.30.43.59	A	59.43.30.115.sta.engin.com.au
115.30.44.0	PTR	115-30-44-0.users.engin.com.au
115.30.44.0	A	0.44.30.115.sta.engin.com.au
115.30.44.51	A+PTR	51.44.30.115.sta.engin.com.au
115.30.44.59	A	59.44.30.115.sta.engin.com.au
115.30.44.112	PTR	115-30-44-112.users.engin.com.au
115.30.44.112	A	mail.fitnessforfun.com.au
115.30.45.0	PTR	115-30-45-0.users.engin.com.au
115.30.45.0	A	0.45.30.115.sta.engin.com.au
115.30.45.93	A	93.45.30.115.sta.engin.com.au
115.30.45.191	A	mail.statehigh64-68.net
115.30.46.0	PTR	115-30-46-0.users.engin.com.au
115.30.46.0	A	0.46.30.115.sta.engin.com.au
115.30.46.12	A	remote.alandal.com.au
115.30.46.27	A	27.46.30.115.sta.engin.com.au
115.30.46.35	A+PTR	35.46.30.115.sta.engin.com.au
115.30.46.43	A	43.46.30.115.sta.engin.com.au
115.30.46.51	A+PTR	51.46.30.115.sta.engin.com.au
115.30.46.57	A	57.46.30.115.sta.engin.com.au
115.30.46.59	A	59.46.30.115.sta.engin.com.au
115.30.46.63	A	63.46.30.115.sta.engin.com.au
115.30.46.74	A	mail.boughtonlegal.com.au
115.30.46.112	PTR	115-30-46-112.users.engin.com.au
115.30.47.0	PTR	115-30-47-0.users.engin.com.au
115.30.47.0	A	0.47.30.115.sta.engin.com.au
115.30.47.116	A	mail.completeleansolutions.com