Robtex

Up: 83.228.56.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 83.228.56.0/25
Down right: 83.228.56.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
83.228.56.16	PTR	16-56-228-83.btc-net.bg
83.228.56.23	PTR	83-228-56-23.ip.btc-net.bg
83.228.56.23	A	www.svetamarina.com
83.228.56.23	A	svetamarina.com
83.228.56.32	A+PTR	83-228-56-32.ip.btc-net.bg
83.228.56.73	PTR	73-56-228-83.btc-net.bg
83.228.56.73	A	mail.hhbrothers.com
83.228.56.73	A	ns1.hhbrothers.com
83.228.56.113	A	mail.msshipping.net
83.228.56.140	PTR	83-228-56-140.ip.btc-net.bg
83.228.56.173	PTR	173-56-228-83.btc-net.bg
83.228.56.193	PTR	193-56-228-83.btc-net.bg
83.228.56.217	PTR	217-56-228-83.btc-net.bg
83.228.56.217	A	ns.ns-varna.bg
83.228.56.217	A	ns-varna.bg
83.228.56.251	A	meriam.dipmap.com