Robtex

Up: 183.91.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 183.91.80.0/23
Down right: 183.91.82.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
183.91.80.34	PTR	mail.tulus.com
183.91.80.78	A	pcare.bpjs-kesehatan.go.id
183.91.81.19	A	autoimunpay.com
183.91.81.19	A	mail.autoimunpay.com
183.91.81.21	A+PTR	mail.m-pay.co.id
183.91.81.21	A	m-pay.co.id
183.91.81.28	A	www.otban3.web.id
183.91.81.28	A	otban3.web.id
183.91.81.83	A	lpsegowakab.net
183.91.81.121	A	tandatanganku.com
183.91.81.140	A+PTR	www.katsushiro.co.id
183.91.82.18	PTR	dplamongan.co.id
183.91.82.18	A	mail.dplamongan.co.id
183.91.82.19	PTR	spil.co.id
183.91.82.19	PTR	mail.spil.co.id
183.91.82.19	A	mks.spil.co.id
183.91.82.20	A+PTR	spil.co.id
183.91.82.21	A	api.spil.co.id
183.91.82.22	A	vpn.spil.co.id
183.91.82.23	A	dplamongan.co.id
183.91.82.24	PTR	tpil.co.id
183.91.82.24	A+PTR	mail.tpil.co.id
183.91.82.26	A	tpil.co.id
183.91.82.26	A	api3.spil.co.id
183.91.82.28	A+PTR	smtp.spil.co.id
183.91.82.28	A	mks.spil.co.id
183.91.82.42	PTR	vicom.bi.go.id
183.91.82.140	A+PTR	mail.elnusapetrofin.co.id
183.91.82.140	A	mx.elnusapetrofin.co.id
183.91.82.211	PTR	gtsnapmx.commbank.co.id
183.91.82.211	A	mail1.commbank.co.id
183.91.82.217	A	commbank.com.vn
183.91.82.219	A+PTR	myaccess.commbank.com.vn
183.91.82.251	A	traseon.com
183.91.82.252	A	tft-indonesia.com
183.91.82.252	A	mail.sinergialamtropika.com
183.91.82.252	A	mail.theforestdata.info
183.91.83.18	A	mail.cimeveanjo.com
183.91.83.18	A	mail.rifansi.co.id
183.91.83.42	A+PTR	mail.indomarine.co.id
183.91.83.45	A+PTR	ns1.indomarine.co.id
183.91.83.45	A	smkn2turen.sch.id
183.91.83.45	A	mail.smkn2turen.sch.id
183.91.83.66	A+PTR	mail.bukitasam.co.id
183.91.83.66	A	autodiscover.bukitasam.co.id
183.91.83.66	A	ptbajkte35.bukitasam.co.id
183.91.83.68	A+PTR	smg.bukitasam.co.id
183.91.83.182	A	mbks.bankkalsel.co.id