Robtex

Up: 193.19.208.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 193.19.212.0/23
Down right: 193.19.214.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
193.19.212.0	A+PTR	193-19-212-0.static.api-internet.com
193.19.212.4	PTR	h2124.man.generacja.pl
193.19.212.4	A	193-19-212-4.static.api-internet.com
193.19.213.12	PTR	h21312.man.generacja.pl
193.19.213.12	A	193-19-213-12.static.api-internet.com
193.19.214.205	A+PTR	h214205.man.generacja.pl
193.19.215.131	PTR	193-19-215-131.static.api-internet.com
193.19.215.131	A	dex.no-ip.pl
193.19.215.133	PTR	193-19-215-133.static.api-internet.com
193.19.215.133	A	www.anna-konon.pl
193.19.215.133	A	anna-konon.pl
193.19.215.255	PTR	193-19-215-255.static.api-internet.com