Robtex

Up: 213.191.220.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 213.191.220.0/25
Down right: 213.191.220.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.191.220.67	A+PTR	wn01.grid.orgchm.bas.bg
213.191.220.170	A+PTR	ns.iber.bas.bg
213.191.220.172	PTR	host-172.iber.bas.bg
213.191.220.180	PTR	mail.toners.bg
213.191.220.180	A	proxy-bg.com
213.191.220.180	A	gsmhall.com
213.191.220.181	A+PTR	ac0rp.com