Robtex

Up: 217.174.52.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 217.174.53.0/25
Down right: 217.174.53.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.174.53.19	A	vlan-burgas-53-19.comnet.bg
217.174.53.122	PTR	sofia-53.122.comnet.bg
217.174.53.122	A	mail.rekbg.eu
217.174.53.122	A	rekbg.eu
217.174.53.123	A	mail.bgmails.org
217.174.53.124	A	mail.market-bg.eu
217.174.53.124	A	market-bg.eu
217.174.53.125	A	mail.buloffer.biz
217.174.53.126	A+PTR	bgoferta.biz
217.174.53.126	A	mail.bgoferta.biz
217.174.53.143	A	vlan-burgas-53-143.comnet.bg
217.174.53.145	A	ns.snejibeji.net
217.174.53.147	PTR	sofia-53.147.comnet.bg
217.174.53.158	PTR	sofia-53.158.comnet.bg
217.174.53.185	PTR	mail.oet-energy.com
217.174.53.187	PTR	sofia-53.187.comnet.bg
217.174.53.187	A	mail.ivanel-bg.com
217.174.53.187	A	ivanel-bg.com