Robtex

Up: 184.52.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 184.52.80.0/22
Down right: 184.52.84.0/22

IP	Type	Hostname
184.52.80.146	PTR	host1845214680.direcway.com
184.52.80.216	PTR	host1845221680.direcway.com
184.52.84.67	PTR	host184526784.direcway.com
184.52.84.73	PTR	host184527384.direcway.com
184.52.84.83	PTR	host184528384.direcway.com
184.52.84.105	PTR	host1845210584.direcway.com
184.52.84.129	PTR	host1845212984.direcway.com
184.52.84.137	PTR	host1845213784.direcway.com
184.52.84.138	PTR	host1845213884.direcway.com
184.52.84.168	PTR	host1845216884.direcway.com
184.52.84.235	PTR	host1845223584.direcway.com
184.52.84.240	PTR	host1845224084.direcway.com