Robtex

Up: 178.49.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 178.49.52.0/23
Down right: 178.49.54.0/23

IP	Type	Hostname
178.49.52.0	A+PTR	l49-52-0.cn.ru
178.49.52.2	A	l49-52-2.cn.ru
178.49.52.20	A	l49-52-20.cn.ru
178.49.52.22	A	l49-52-22.cn.ru
178.49.52.27	A	l49-52-27.cn.ru
178.49.52.32	A	l49-52-32.cn.ru
178.49.52.39	A	l49-52-39.cn.ru
178.49.52.42	A	l49-52-42.cn.ru
178.49.52.47	A	l49-52-47.cn.ru
178.49.52.53	A	l49-52-53.cn.ru
178.49.52.59	A	l49-52-59.cn.ru
178.49.52.60	A	l49-52-60.cn.ru
178.49.52.65	A	l49-52-65.cn.ru
178.49.52.67	A	l49-52-67.cn.ru
178.49.52.71	A+PTR	l49-52-71.cn.ru
178.49.52.72	PTR	l49-52-72.novotelecom.ru
178.49.52.72	A	l49-52-72.cn.ru
178.49.52.83	A	l49-52-83.cn.ru
178.49.52.89	PTR	viessmann-sib.ru
178.49.52.96	A+PTR	l49-52-96.cn.ru
178.49.52.101	A	l49-52-101.cn.ru
178.49.52.107	A	l49-52-107.cn.ru
178.49.52.129	A	l49-52-129.cn.ru
178.49.52.130	A	l49-52-130.cn.ru
178.49.52.133	PTR	mail.ooorazv.ru
178.49.52.133	A	mail.techsibir.ru
178.49.52.137	A	l49-52-137.cn.ru
178.49.52.143	PTR	office.ypa.ru
178.49.52.143	A	ns.ypa.ru
178.49.52.144	A	l49-52-144.cn.ru
178.49.52.165	A+PTR	l49-52-165.cn.ru
178.49.52.174	PTR	cat.abl.ru
178.49.52.175	A	l49-52-175.cn.ru
178.49.52.179	A	l49-52-179.cn.ru
178.49.52.190	A	l49-52-190.cn.ru
178.49.52.193	A	l49-52-193.cn.ru
178.49.52.208	A	l49-52-208.cn.ru
178.49.52.215	A	l49-52-215.cn.ru
178.49.52.226	A	l49-52-226.cn.ru
178.49.52.231	A	l49-52-231.cn.ru
178.49.52.235	A	l49-52-235.cn.ru
178.49.52.240	A	l49-52-240.cn.ru
178.49.52.243	A	l49-52-243.cn.ru
178.49.52.246	A	l49-52-246.cn.ru
178.49.53.19	A	l49-53-19.cn.ru
178.49.53.37	A	l49-53-37.cn.ru
178.49.53.71	A	l49-53-71.cn.ru
178.49.53.255	A	l49-53-255.cn.ru
178.49.54.98	PTR	l49-54-98.cn.ru
178.49.54.135	A	whiteroad.ru
178.49.54.187	A	l49-54-187.cn.ru
178.49.54.250	A	l49-54-250.cn.ru
178.49.55.0	A	l49-55-0.cn.ru
178.49.55.12	A	l49-55-12.cn.ru
178.49.55.18	A+PTR	l49-55-18.cn.ru
178.49.55.43	A+PTR	l49-55-43.cn.ru
178.49.55.65	A+PTR	l49-55-65.cn.ru
178.49.55.207	A+PTR	l49-55-207.cn.ru
178.49.55.210	A	l49-55-210.cn.ru
178.49.55.232	A	l49-55-232.cn.ru
178.49.55.249	A	l49-55-249.cn.ru