Robtex

Up: 77.120.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 77.120.52.0/23
Down right: 77.120.54.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.120.52.43	A+PTR	nsrec-2.krr.volia.net
77.120.53.141	PTR	dynamic-77-120-53-141.volia.com
77.120.53.141	A	dns2.qidsozr.ru
77.120.53.141	A	dns1.qidsozr.ru
77.120.54.119	PTR	dynamic-77-120-54-119.volia.com
77.120.55.188	PTR	dynamic-77-120-55-188.volia.com