Robtex

Up: 203.87.56.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.87.56.0/23
Down right: 203.87.58.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.87.56.14	PTR	203-87-56-14.static.tpgi.com.au
203.87.56.46	A+PTR	mail.smartwatercorp.com.au
203.87.56.76	PTR	203-87-56-76.static.tpgi.com.au
203.87.56.78	A	remote.creationhomes.com.au
203.87.56.101	PTR	203-87-56-101.static.tpgi.com.au
203.87.56.101	A	test.sourcecentral.com.au
203.87.56.101	A	mail.test.sourcecentral.com.au
203.87.56.116	PTR	bund.com.au
203.87.56.116	A	charliethesheep.net
203.87.56.116	A	greasemaxsouthernafrica.com
203.87.56.146	PTR	203-87-56-146.static.tpgi.com.au
203.87.56.146	A	investorportal.com.au
203.87.56.146	A	mail.investorportal.com.au
203.87.56.238	PTR	mhub.fambiz.org.au
203.87.56.238	A	mailex.fambiz.org.au
203.87.57.6	PTR	203-87-57-6.static.tpgi.com.au
203.87.57.6	A	mail.money1.com.au
203.87.57.26	PTR	26.57.87.203.static.qld.chariot.net.au
203.87.57.62	PTR	62.57.87.203.static.qld.chariot.net.au
203.87.57.62	A	mail2.mannchs.org.au
203.87.57.74	PTR	74.57.87.203.static.qld.chariot.net.au
203.87.57.74	A	mail.eelaw.com.au
203.87.57.84	PTR	84.57.87.203.static.qld.chariot.net.au
203.87.57.86	PTR	203-87-57-86.static.tpgi.com.au
203.87.57.86	A	mail.blackburnlazer.com.au
203.87.57.90	PTR	203-87-57-90.static.tpgi.com.au
203.87.57.102	A	mail.dgglobal.co
203.87.57.102	A	dgglobal.co
203.87.57.118	A	mail.flcmicro.com
203.87.57.118	A	mail.coolon.com.au
203.87.57.118	A	mail0.flcmicro.com
203.87.57.202	A	strategicvic.com.au
203.87.57.229	PTR	203-87-57-229.static.tpgi.com.au
203.87.57.230	A	mail.arlin.com.au
203.87.57.230	A	mail.deanquip.com
203.87.58.1	PTR	203-87-58-1.static.tpgi.com.au
203.87.58.42	A	mail.cargoam.com
203.87.58.66	A	mail.encompass-cs.org.au
203.87.58.98	A+PTR	vipac.com.au
203.87.58.98	A	vipac1.vipac.com.au
203.87.58.98	A	acoustic-design.net.au
203.87.58.109	PTR	203-87-58-109.static.tpgi.com.au
203.87.58.111	A	infraconf.com.au
203.87.58.113	PTR	203-87-58-113.static.tpgi.com.au
203.87.58.113	A	acoustic-design.net.au
203.87.58.113	A	acousticdesign.co.nz
203.87.58.114	PTR	114.58.87.203.static.qld.chariot.net.au
203.87.58.114	A	tcil.com.au
203.87.58.115	PTR	203-87-58-115.static.tpgi.com.au
203.87.58.116	A	webturtle.com.au
203.87.58.117	PTR	117.58.87.203.static.qld.chariot.net.au
203.87.58.117	A	pinged.com.au
203.87.58.117	A	pinged.net.au
203.87.58.118	PTR	118.58.87.203.static.qld.chariot.net.au
203.87.58.118	A	trackiq.net.au
203.87.58.119	PTR	203-87-58-119.static.tpgi.com.au
203.87.58.132	PTR	132.58.87.203.static.qld.chariot.net.au
203.87.58.132	A	backup.vic.cloud.m-i.com.au
203.87.58.178	PTR	203-87-58-178.static.tpgi.com.au
203.87.58.178	A	mail.moneyhelp.org.au
203.87.58.242	PTR	242.58.87.203.static.qld.chariot.net.au
203.87.58.242	A	mail.pancakeparlour.com
203.87.59.6	PTR	remote.devco.com.au
203.87.59.6	A	mail.northendcontracting.com
203.87.59.34	A+PTR	mail.architectureworks.com.au
203.87.59.46	A+PTR	mail.patons.com.au
203.87.59.53	PTR	53.59.87.203.static.qld.chariot.net.au
203.87.59.53	A	mail.m-i.com.au
203.87.59.78	PTR	78.59.87.203.static.qld.chariot.net.au
203.87.59.78	A	mail.mobilityplus.com.au
203.87.59.78	A	mail.mochajos.com.au
203.87.59.90	A+PTR	mail.nev-au.com
203.87.59.100	PTR	203-87-59-100.static.tpgi.com.au
203.87.59.100	A	mail.calibretd.com
203.87.59.103	PTR	103.59.87.203.static.qld.chariot.net.au
203.87.59.108	PTR	108.59.87.203.static.qld.chariot.net.au
203.87.59.108	A	calibretd.com
203.87.59.108	A	mail.calibretd.com.au
203.87.59.170	A	mail.diamondkey.com
203.87.59.178	PTR	178.59.87.203.static.qld.chariot.net.au
203.87.59.178	A	remote.buildspect.com.au
203.87.59.215	A	flexibooks.com.au
203.87.59.216	PTR	203-87-59-216.static.tpgi.com.au
203.87.59.216	A	macmillaneducation.com.au
203.87.59.221	PTR	221.59.87.203.static.qld.chariot.net.au
203.87.59.221	A	icanspeaklanguages.com
203.87.59.221	A	icanspeaklanguages.com.au
203.87.59.222	PTR	203-87-59-222.static.tpgi.com.au
203.87.59.222	A	stargirluniverse.com
203.87.59.222	A	macbiology.com.au