Robtex

Up: 91.213.38.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 91.213.38.0/25
Down right: 91.213.38.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.213.38.5	A+PTR	front.emf.pl
91.213.38.5	A	smtp.emf.pl
91.213.38.6	PTR	smtp.emf.pl
91.213.38.11	PTR	mail.speak-up.com.tr
91.213.38.12	PTR	docent.lsp.edu.pl
91.213.38.16	A+PTR	ftp.smyk.pl
91.213.38.17	PTR	www.empikschool.com
91.213.38.17	A	empik-kids.com
91.213.38.18	A+PTR	materials.lsp.edu.pl
91.213.38.19	PTR	student.lsp.edu.pl
91.213.38.25	A+PTR	mail.emf-loyalty.com
91.213.38.25	A	emf-loyalty.com
91.213.38.26	A+PTR	mx.empiktravel.pl
91.213.38.26	A	mx.empiktravel.com
91.213.38.26	A	mx.empik-travel.com
91.213.38.31	PTR	dziekan.lsp.edu.pl
91.213.38.35	A	empikkids.com
91.213.38.35	A	empikstudents.com
91.213.38.35	A	empikonline.pl
91.213.38.47	A+PTR	thor.smyk.com
91.213.38.48	A+PTR	sender.smyk.com
91.213.38.49	A+PTR	ex.smyk.com
91.213.38.50	A+PTR	ex.smyk.com
91.213.38.51	A+PTR	mail.smyk.com
91.213.38.67	A+PTR	svr2.empik.pl
91.213.38.68	A+PTR	mismar.empik.pl
91.213.38.69	A+PTR	extranet.empik.pl
91.213.38.69	A	mdm.empik.pl
91.213.38.70	A+PTR	e-archiwum.empik.pl
91.213.38.71	A+PTR	mg.empik.pl
91.213.38.72	A+PTR	hornet.empik.pl
91.213.38.73	PTR	ladybird.empik.pl
91.213.38.74	A+PTR	mismar2.empik.pl
91.213.38.75	A+PTR	mosquito.empik.pl
91.213.38.75	A	news.empik.pl
91.213.38.75	A	mantis.empik.pl
91.213.38.76	A+PTR	bee.empik.com
91.213.38.77	A+PTR	dns.empik.com
91.213.38.77	A	dns.empik.pl
91.213.38.78	A+PTR	globstan.empik.pl
91.213.38.89	A+PTR	mail.erida.pl
91.213.38.95	A+PTR	sherpa.empik.pl
91.213.38.132	A+PTR	mail.dtcentrum.pl
91.213.38.132	A	ns5.exorigo.pl
91.213.38.132	A	mail.dtcentrum.com
91.213.38.133	A+PTR	faun-1.smyk.com
91.213.38.134	A+PTR	faun-2.smyk.com