Robtex

Up: 89.31.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 89.31.64.0/22
Down right: 89.31.68.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
89.31.64.2	A	ns1.sibersoft.pl
89.31.64.3	A	ns2.sibersoft.pl
89.31.64.5	A	junior.bialystok.pl
89.31.64.5	A	bialystok-psychoterapia.pl
89.31.64.10	A	mail.bialowieza.net.pl
89.31.64.10	A	mail.junior.bialystok.pl
89.31.64.10	A	mail.bialystok-psychoterapia.pl
89.31.64.18	A	dns.biatel.pl
89.31.64.27	A	*.telemetria.net.pl
89.31.64.28	A	*.cellbox.com.pl
89.31.64.28	A	biatelbit.pl
89.31.64.28	A	htp7.pl
89.31.64.50	A	www-int.biatel.pl
89.31.64.55	A	mx.elektranet.pl
89.31.64.55	A	mail.stal-projekt.com
89.31.64.55	A	mail.cellbox.net.pl
89.31.66.20	A	support.i-g.pl
89.31.67.12	A	mail.paperprint.pl
89.31.67.12	A	mail.e-prawnicy.pl
89.31.67.12	A	mail.atmax.pl
89.31.68.139	PTR	68-139.biatel.com.pl
89.31.71.161	PTR	71-161.biatel.com.pl