Robtex

Up: 81.52.176.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 81.52.176.0/22
Down right: 81.52.180.0/22

IP	Type	Hostname
81.52.176.32	A+PTR	vmp-sonus-1.gw.opentransit.net
81.52.178.1	A+PTR	orangefrance-5.gw.opentransit.net
81.52.178.146	A	idt-1.gw.opentransit.net
81.52.178.168	A	telecomitalia-2.gw.opentransit.net
81.52.178.223	A	testing-13.gw.opentransit.net
81.52.179.14	A+PTR	leaseweb-3.gw.opentransit.net
81.52.179.46	A+PTR	iha-1.gw.opentransit.net
81.52.179.74	PTR	google-2.gw.opentransit.net
81.52.179.74	A	google-4.gw.opentransit.net
81.52.179.84	A+PTR	qwest-1.gw.opentransit.net
81.52.179.110	A	peercweurope-2.gw.opentransit.net
81.52.179.114	A+PTR	abovenet-1.gw.opentransit.net
81.52.179.114	A	sonatel-1.gw.opentransit.net
81.52.179.134	PTR	leaseweb.gw.opentransit.net
81.52.179.138	A	leaseweb-2.gw.opentransit.net
81.52.179.174	PTR	globalcrossing-2.gw.opentransit.net
81.52.179.174	A	chinatelecom.gw.opentransit.net
81.52.179.204	A+PTR	limelight.gw.opentransit.net
81.52.181.11	A	vmp-2.gw.opentransit.net
81.52.181.22	A	old-2.gw.opentransit.net
81.52.181.25	A	hits-1.gw.opentransit.net
81.52.181.122	A+PTR	ee-1.gw.opentransit.net
81.52.181.149	A	telecomitalia-4.gw.opentransit.net
81.52.181.191	A+PTR	orangebotswana-1.gw.opentransit.net
81.52.182.40	A	sta-1.gw.opentransit.net
81.52.182.42	PTR	orangetunisiesigtran.gw.opentransit.net
81.52.182.42	A	sta-1.gw.opentransit.net
81.52.182.50	A+PTR	samoatel.gw.opentransit.net
81.52.182.136	A+PTR	old-1.gw.opentransit.net
81.52.182.162	PTR	orangebotswana-1.gw.opentransit.net
81.52.182.186	A+PTR	mobiletelesystems.gw.opentransit.net