Robtex

Up: 185.144.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.144.72.0/23
Down right: 185.144.74.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.144.72.4	A+PTR	ns1.tkom.io
185.144.72.5	A+PTR	ns2.tkom.io
185.144.72.10	A+PTR	speedtest.telmekom.net
185.144.72.36	PTR	185-144-72-36.ip4.tkom.io
185.144.72.39	PTR	185-144-72-39.ip4.tkom.io
185.144.72.39	A	www.telmekom.com
185.144.72.39	A	telmekom.com
185.144.72.240	PTR	185-144-72-240.ip4.tkom.io
185.144.72.240	A	0xca.net
185.144.73.3	PTR	185-144-73-3.ip4.tkom.io
185.144.73.3	A	ebnicher.net
185.144.73.6	PTR	185-144-73-6.ip4.tkom.io
185.144.73.6	A	mail1.tanzer.bz
185.144.73.26	A+PTR	remote.kofler-fahrzeugbau.it
185.144.73.56	PTR	185-144-73-56.ip4.tkom.io
185.144.73.60	A+PTR	mail.locher.eu
185.144.73.226	PTR	185-144-73-226.ip4.tkom.io
185.144.73.226	A	mail.roland-gufler.it
185.144.74.2	A+PTR	mail.hohenwart.com
185.144.74.26	A+PTR	mx.marx.it
185.144.75.37	PTR	185-144-75-37.ip4.tkom.io
185.144.75.98	PTR	185-144-75-98.ip4.tkom.io
185.144.75.114	A	web.futurebrain.net