Robtex

Up: 190.52.72.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 190.52.74.0/24
Down right: 190.52.75.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
190.52.74.33	PTR	static-host190-52-74n33.espoltel.net
190.52.74.45	PTR	mail.inatra.com
190.52.74.45	PTR	mail.comelec.com.ec
190.52.74.50	A	static-host190-52-74n50.espoltel.net
190.52.74.100	PTR	mail.inesa.ec
190.52.74.100	A	intelmech.com
190.52.74.100	A	mail.postecon.ec
190.52.74.110	A+PTR	static-host190-52-74n110.espoltel.net
190.52.74.117	A	static-host190-52-74n117.espoltel.net
190.52.74.120	PTR	mail.metalcar.com.ec
190.52.74.120	A	static-host190-52-74n120.espoltel.net
190.52.74.125	A+PTR	mail.metalcar.com.ec
190.52.74.185	PTR	static-host190-52-74n185.espoltel.net
190.52.75.187	PTR	mail.pesquerapolar.com
190.52.75.187	A	pesquerapolar.com
190.52.75.187	A	aplusnet.com.br
190.52.75.194	A	mail.sysrob.com
190.52.75.194	A	www.sysrob.com
190.52.75.194	A	angelfire.betta-fish.com