Robtex

Up: 101.0.100.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 101.0.101.0/25
Down right: 101.0.101.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
101.0.101.1	PTR	cfw01.apdcsy1.digitalpacific.com.au
101.0.101.3	PTR	vlan-60.csw01.voc.digitalpacific.com.au
101.0.101.10	A+PTR	resolver1.digitalpacific.com.au
101.0.101.11	A+PTR	resolver2.digitalpacific.com.au
101.0.101.14	A+PTR	zabbix-cluster.apdcsy1.digitalpacific.com.au
101.0.101.26	A+PTR	cache.digitalpacific.com.au
101.0.101.26	A	nx03.digitalpacific.com.au
101.0.101.27	PTR	performance-check-via-ntt.harmless-noction-irp-probing.as55803.net.au
101.0.101.27	A	directory.digitalpacific.com.au
101.0.101.28	PTR	performance-check-via-cogent.harmless-noction-irp-probing.as55803.net.au
101.0.101.30	PTR	performance-check-via-vocus.harmless-noction-irp-probing.digitalpacific.com.au
101.0.101.43	PTR	43.101.0.101.static.digitalpacific.com.au
101.0.101.49	PTR	reth0-1039.cfw01.apdcsy1.as55803.net.au
101.0.101.50	A	dpreseller.com.au
101.0.101.51	A+PTR	checkout.digitalpacific.com.au
101.0.101.52	PTR	webmastershowcase.com.au
101.0.101.52	A	*.webmastershowcase.com.au
101.0.101.58	PTR	netbox.hostopia.com.au
101.0.101.58	A	zabbix04.digitalpacific.com.au
101.0.101.61	PTR	61.101.0.101.static.digitalpacific.com.au
101.0.101.66	PTR	66.101.0.101.static.digitalpacific.com.au
101.0.101.72	PTR	72.101.0.101.static.digitalpacific.com.au
101.0.101.83	PTR	83.101.0.101.static.digitalpacific.com.au
101.0.101.85	PTR	85.101.0.101.static.digitalpacific.com.au
101.0.101.90	A+PTR	rapidrestore19.auserver.com.au
101.0.101.91	PTR	91.101.0.101.static.digitalpacific.com.au
101.0.101.99	PTR	99.101.0.101.static.digitalpacific.com.au
101.0.101.101	PTR	ns1.digitalpacific.com.au
101.0.101.101	A	ns1.directionfirst.com
101.0.101.101	A	ns1.catchupmoveforward.com
101.0.101.106	PTR	ns1.auserver.com.au
101.0.101.106	A	ns1.nationwideguttercleaning.com.au
101.0.101.106	A	ns1.omnimedia.net.au
101.0.101.140	A	nx03.digitalpacific.com.au
101.0.101.159	PTR	159.101.0.101.static.digitalpacific.com.au
101.0.101.160	PTR	160.101.0.101.static.digitalpacific.com.au
101.0.101.161	PTR	reth1-1402.cfw01.apdcsy1.digitalpacific.com.au
101.0.101.162	PTR	vmweb04.digitalpacific.com.au
101.0.101.162	A	mail.getpadlock.com
101.0.101.162	A	mail.workatdp.com
101.0.101.164	PTR	hctrl02.clint.digitalpacific.com.au
101.0.101.164	A	whoislookup.com.au
101.0.101.164	A	www.whoislookup.com.au
101.0.101.165	PTR	vmweb04.digitalpacific.com.au
101.0.101.165	A	*.webmastershowcase.com.au
101.0.101.165	A	webmastershowcase.com.au
101.0.101.173	PTR	173.101.0.101.static.digitalpacific.com.au
101.0.101.174	A+PTR	config01.voc01.digitalpacific.com.au
101.0.101.186	PTR	186.101.0.101.static.digitalpacific.com.au
101.0.101.187	PTR	187.101.0.101.static.digitalpacific.com.au
101.0.101.190	PTR	190.101.0.101.static.digitalpacific.com.au
101.0.101.193	PTR	reth1-1402.cfw01.apdcsy1.digitalpacific.com.au
101.0.101.194	PTR	194.101.0.101.static.digitalpacific.com.au
101.0.101.194	A	a-framesbrisbane.com
101.0.101.194	A	mail.theflowerdance.com
101.0.101.248	PTR	modsec-staging.int.digitalpacific.com.au
101.0.101.250	PTR	250.101.0.101.static.digitalpacific.com.au