Robtex

Up: 5.10.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 5.10.52.0/23
Down right: 5.10.54.0/23

IP	Type	Hostname
5.10.52.139	PTR	hsi-kbw-5-10-52-139.hsi18.kabel-badenwuerttemberg.de
5.10.52.156	A+PTR	hsi-kbw-5-10-52-156.hsi18.kabel-badenwuerttemberg.de
5.10.52.216	PTR	hsi-kbw-5-10-52-216.hsi18.kabel-badenwuerttemberg.de
5.10.53.26	PTR	hsi-kbw-5-10-53-26.hsi18.kabel-badenwuerttemberg.de
5.10.53.26	A	mail.m-krebs.net
5.10.53.236	A+PTR	hsi-kbw-5-10-53-236.hsi18.kabel-badenwuerttemberg.de
5.10.54.206	PTR	hsi-kbw-5-10-54-206.hsi18.kabel-badenwuerttemberg.de
5.10.55.115	A+PTR	hsi-kbw-5-10-55-115.hsi18.kabel-badenwuerttemberg.de
5.10.55.255	PTR	hsi-kbw-5-10-55-255.hsi18.kabel-badenwuerttemberg.de