Robtex

Up: 81.89.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 81.89.80.0/21
Down right: 81.89.88.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.89.80.5	A+PTR	mail.chel-net.ru
81.89.80.5	A	sip4all.ru
81.89.80.5	A	mail.active-chel.ru
81.89.80.16	A+PTR	dogandcat74.ru
81.89.80.16	A	www.dogandcat74.ru
81.89.80.23	A	active-chel.ru
81.89.80.54	A	shape.chel-net.ru
81.89.80.66	A+PTR	rt-cuba.chel-net.ru
81.89.81.6	A	mail.kio.uu.ru
81.89.81.10	A	u81-h10.chel-net.ru
81.89.81.15	A	u81-h15.chel-net.ru
81.89.81.17	A	u81-h17.chel-net.ru
81.89.81.21	A	u81-h21.chel-net.ru
81.89.81.25	A	u81-h25.chel-net.ru
81.89.81.36	A	u81-h36.chel-net.ru
81.89.81.40	A	u81-h40.chel-net.ru
81.89.81.51	A	u81-h51.chel-net.ru
81.89.81.56	A	u81-h56.chel-net.ru
81.89.81.60	A	u81-h60.chel-net.ru
81.89.81.66	A+PTR	u81-h66.chel-net.ru
81.89.81.77	A	u81-h77.chel-net.ru
81.89.81.90	A	u81-h90.chel-net.ru
81.89.81.93	A	u81-h93.chel-net.ru
81.89.81.95	A	u81-h95.chel-net.ru
81.89.81.105	A	u81-h105.chel-net.ru
81.89.81.118	A	u81-h118.chel-net.ru
81.89.81.124	A	u81-h124.chel-net.ru
81.89.81.129	A	u81-h129.chel-net.ru
81.89.81.147	A	u81-h147.chel-net.ru
81.89.81.148	A	u81-h148.chel-net.ru
81.89.81.153	A	u81-h153.chel-net.ru
81.89.81.173	A	u81-h173.chel-net.ru
81.89.81.188	A	u81-h188.chel-net.ru
81.89.81.189	A	u81-h189.chel-net.ru
81.89.81.190	A	u81-h190.chel-net.ru
81.89.81.203	A	u81-h203.chel-net.ru
81.89.81.204	A	u81-h204.chel-net.ru
81.89.81.205	A	u81-h205.chel-net.ru
81.89.81.206	A	u81-h206.chel-net.ru
81.89.81.235	A	u81-h235.chel-net.ru
81.89.81.236	A	u81-h236.chel-net.ru
81.89.81.238	A	u81-h238.chel-net.ru
81.89.82.0	A	u82-h0.chel-net.ru
81.89.82.28	A	files.chia.ru
81.89.82.37	A	dev.of21.net
81.89.82.39	A	of21.pro
81.89.82.40	A	dev.of21.net
81.89.82.42	A	web.itcron.ru
81.89.82.42	A	itkron.ru
81.89.82.51	A	rv1.of21.net
81.89.82.53	A	rv3.of21.net
81.89.82.58	A	ibsrv.ru
81.89.82.74	A	mail.gp-afk.ru
81.89.82.74	A	u82-h74.chel-net.ru
81.89.82.74	A	gp-afk.ru
81.89.82.100	A	u82-h100.chel-net.ru
81.89.83.3	A	vpn.itcron.ru
81.89.83.8	A	region74.net
81.89.83.142	A	u83-h142.chel-net.ru
81.89.83.166	A	u83-h166.chel-net.ru
81.89.83.203	A	u83-h203.chel-net.ru
81.89.84.0	A	u84-h0.chel-net.ru
81.89.84.8	A	u84-h8.chel-net.ru
81.89.84.36	A	u84-h36.chel-net.ru
81.89.84.57	A	u84-h57.chel-net.ru
81.89.84.91	A	u84-h91.chel-net.ru
81.89.84.126	A	u84-h126.chel-net.ru
81.89.84.162	A+PTR	u84-h162.chel-net.ru
81.89.84.194	A+PTR	u84-h194.chel-net.ru
81.89.84.201	A	u84-h201.chel-net.ru
81.89.84.230	A	u84-h230.chel-net.ru
81.89.84.241	A+PTR	u84-h241.chel-net.ru
81.89.84.247	A	u84-h247.chel-net.ru
81.89.85.25	A	u85-h25.chel-net.ru
81.89.85.51	A+PTR	u85-h51.chel-net.ru
81.89.85.62	A	u85-h62.chel-net.ru
81.89.85.64	A+PTR	u85-h64.chel-net.ru
81.89.85.65	A+PTR	u85-h65.chel-net.ru
81.89.85.66	A+PTR	u85-h66.chel-net.ru
81.89.85.72	A	u85-h72.chel-net.ru
81.89.85.84	A	u85-h84.chel-net.ru
81.89.85.87	A	u85-h87.chel-net.ru
81.89.85.105	A	u85-h105.chel-net.ru
81.89.85.107	A	u85-h107.chel-net.ru
81.89.85.111	A	u85-h111.chel-net.ru
81.89.85.121	A	u85-h121.chel-net.ru
81.89.85.146	A+PTR	u85-h146.chel-net.ru
81.89.85.179	PTR	u85-h179.chel-net.ru
81.89.85.194	A+PTR	u85-h194.chel-net.ru
81.89.85.212	A	u85-h212.chel-net.ru
81.89.86.0	A+PTR	u86-h0.chel-net.ru
81.89.86.6	A	u86-h6.chel-net.ru
81.89.86.9	A	u86-h9.chel-net.ru
81.89.86.20	A+PTR	u86-h20.chel-net.ru
81.89.86.34	A+PTR	u86-h34.chel-net.ru
81.89.86.39	A	u86-h39.chel-net.ru
81.89.86.40	A	u86-h40.chel-net.ru
81.89.86.53	A+PTR	u86-h53.chel-net.ru
81.89.86.55	A	u86-h55.chel-net.ru
81.89.86.56	A	u86-h56.chel-net.ru
81.89.86.57	A	u86-h57.chel-net.ru
81.89.86.71	A	u86-h71.chel-net.ru
81.89.86.73	A	u86-h73.chel-net.ru
81.89.86.74	A	u86-h74.chel-net.ru
81.89.86.75	A	u86-h75.chel-net.ru
81.89.86.81	A	euroline74.ru
81.89.86.82	A+PTR	u86-h82.chel-net.ru
81.89.86.89	A	u86-h89.chel-net.ru
81.89.86.102	A	u86-h102.chel-net.ru
81.89.86.114	A+PTR	u86-h114.chel-net.ru
81.89.86.116	A	u86-h116.chel-net.ru
81.89.86.119	A	u86-h119.chel-net.ru
81.89.86.121	A	u86-h121.chel-net.ru
81.89.86.139	A	u86-h139.chel-net.ru
81.89.86.141	A	u86-h141.chel-net.ru
81.89.86.144	A+PTR	u86-h144.chel-net.ru
81.89.86.145	A+PTR	u86-h145.chel-net.ru
81.89.86.146	A+PTR	u86-h146.chel-net.ru
81.89.86.149	A	u86-h149.chel-net.ru
81.89.86.160	A+PTR	u86-h160.chel-net.ru
81.89.86.161	A+PTR	u86-h161.chel-net.ru
81.89.86.179	A+PTR	u86-h179.chel-net.ru
81.89.86.191	A	u86-h191.chel-net.ru
81.89.86.203	A	u86-h203.chel-net.ru
81.89.86.209	A+PTR	u86-h209.chel-net.ru
81.89.86.214	A	u86-h214.chel-net.ru
81.89.86.217	A	u86-h217.chel-net.ru
81.89.86.219	A	u86-h219.chel-net.ru
81.89.86.224	A+PTR	u86-h224.chel-net.ru
81.89.86.230	A	u86-h230.chel-net.ru
81.89.86.237	A	u86-h237.chel-net.ru
81.89.86.244	A	u86-h244.chel-net.ru
81.89.86.246	A	u86-h246.chel-net.ru
81.89.86.250	A	u86-h250.chel-net.ru
81.89.86.251	A	u86-h251.chel-net.ru
81.89.88.134	A	chel.inprom.ru