Robtex

Up: 87.121.34.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 87.121.34.0/25
Down right: 87.121.34.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.121.34.1	A	bgsf.redist.iptvdc.com
87.121.34.2	PTR	02.sf.bg.iptvdc.com
87.121.34.2	A	ns3.silistra.tv
87.121.34.2	A	02.sf.bg.unistream.tv
87.121.34.3	PTR	03.sf.bg.iptvdc.com
87.121.34.3	A	bgsf.redist.iptvdc.com
87.121.34.3	A	ns4.iptvdc.com