Robtex

Up: 192.199.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 192.199.16.0/22
Down right: 192.199.20.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.199.17.51	A	mail.technopieux.es
192.199.18.2	A+PTR	relay.profitecla.pt
192.199.18.2	A+PTR	rlxrelay1.rumos.pt
192.199.18.3	PTR	rlxfs01.rumos.pt
192.199.18.8	PTR	rlxsq01.rumos.pt
192.199.18.9	PTR	rlxsq02.rumos.pt
192.199.18.9	A+PTR	cacti.gruporumos.com
192.199.18.10	PTR	www.centrodeemprego.com
192.199.18.10	PTR	erc.escoladigital.com
192.199.18.10	PTR	www.escoladigital.com
192.199.18.12	A	rlxex01.rumos.pt
192.199.18.16	PTR	rlxex03.rumos.pt
192.199.18.65	A	ddns01.gruporumos.com
192.199.18.65	A	ddns02.gruporumos.com
192.199.18.65	A	ddns01.wan-gr.com
192.199.18.143	A+PTR	btraining.rumos.pt
192.199.18.149	A	autodiscover.gruporumos.com
192.199.18.150	A	autodiscover.gruporumos.com
192.199.18.150	A	mail.gruporumos.com
192.199.18.150	A	mail.flag.pt