Robtex

Up: 37.112.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 37.112.128.0/21
Down right: 37.112.136.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
37.112.128.0	PTR	37x112x128x0.static-business.nn.ertelecom.ru
37.112.128.1	PTR	37x112x128x1.dynamic.omsk.ertelecom.ru
37.112.128.2	A	mail.atriumnn.ru
37.112.128.2	A	citrix.atriumnn.ru
37.112.128.17	A	lihachnn.ru
37.112.128.46	A	srv24.ru
37.112.128.46	A	24-na-7.ru
37.112.128.50	PTR	37x112x128x50.dynamic.omsk.ertelecom.ru
37.112.128.50	A	soma-fix.ru
37.112.128.50	A	www.rusit.org
37.112.128.64	PTR	37x112x128x64.static-business.nn.ertelecom.ru
37.112.128.67	PTR	gw.s-stroy.ru
37.112.128.67	A	adm.success-nn.ru
37.112.128.71	A	mail.tmnn.ru
37.112.128.71	A	mail.basseynoff.com
37.112.128.71	A	mail.torgmontage.com
37.112.128.109	A	mail.extra-n.ru
37.112.128.110	A	mail.ntechmash.ru
37.112.128.110	A	mail.antiseptic-volga.ru
37.112.128.110	A	mail.stanki-group.ru
37.112.128.112	A+PTR	mail.ford-nn.com
37.112.128.112	A	mail.autoklaus-nn.ru
37.112.128.112	A	mail.kia-nn.com
37.112.128.115	PTR	mail.zlata-nn.ru
37.112.128.115	A	mail.vwexpress.ru
37.112.128.132	A	mail.magistral-nn.ru
37.112.128.148	A	mail.vunn.ru
37.112.128.176	PTR	37x112x128x176.dynamic.omsk.ertelecom.ru
37.112.128.176	A	nokturn.ru
37.112.128.214	A	xn--80aai0ajbj.xn--p1ai
37.112.128.214	A	xn----8sbal6alck.xn--p1ai
37.112.128.227	A	www.mag-quality.ru
37.112.128.227	A	mag-quality.ru
37.112.128.239	A	mail2.simplex.nnov.ru
37.112.128.239	A	mail2.sprint.nnov.ru
37.112.128.246	A	mail2.tps-nn.ru
37.112.128.247	A	mail.era-nn.ru
37.112.129.4	A	relay.switchray.ru
37.112.129.5	A	mailnn.switchray.ru
37.112.129.32	A	helpdesk.aloe-systems.com
37.112.129.83	PTR	37x112x129x83.dynamic.omsk.ertelecom.ru
37.112.134.129	PTR	37x112x134x129.dynamic.nn.ertelecom.ru
37.112.136.1	PTR	37x112x136x1.dynamic.nn.ertelecom.ru
37.112.136.24	PTR	37x112x136x24.dynamic.nn.ertelecom.ru
37.112.136.35	PTR	37x112x136x35.dynamic.nn.ertelecom.ru
37.112.136.50	PTR	37x112x136x50.dynamic.nn.ertelecom.ru
37.112.136.51	PTR	37x112x136x51.dynamic.nn.ertelecom.ru
37.112.136.66	PTR	37x112x136x66.dynamic.nn.ertelecom.ru
37.112.136.67	PTR	37x112x136x67.dynamic.nn.ertelecom.ru
37.112.136.82	PTR	37x112x136x82.dynamic.nn.ertelecom.ru
37.112.136.83	PTR	37x112x136x83.dynamic.nn.ertelecom.ru
37.112.136.97	PTR	37x112x136x97.dynamic.nn.ertelecom.ru
37.112.136.128	PTR	37x112x136x128.dynamic.nn.ertelecom.ru
37.112.136.147	PTR	37x112x136x147.dynamic.nn.ertelecom.ru
37.112.136.176	PTR	37x112x136x176.dynamic.nn.ertelecom.ru
37.112.136.193	PTR	37x112x136x193.dynamic.nn.ertelecom.ru
37.112.136.209	PTR	37x112x136x209.dynamic.nn.ertelecom.ru
37.112.136.210	PTR	37x112x136x210.dynamic.nn.ertelecom.ru
37.112.136.242	PTR	37x112x136x242.dynamic.saratov.ertelecom.ru
37.112.138.98	PTR	37x112x138x98.dynamic.omsk.ertelecom.ru