Robtex

Up: 158.255.238.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 158.255.239.0/25
Down right: 158.255.239.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
158.255.239.0	A+PTR	red-158-255-239.telecablesantapola.es
158.255.239.2	PTR	2.red-158-255-239.telecablesantapola.es
158.255.239.102	A	sdr.ham-radio-op.net
158.255.239.244	A+PTR	244.red-158-255-239.telecablesantapola.es
158.255.239.244	A	mail.peixdesantapola.com
158.255.239.244	A	adlsantapola.com
158.255.239.250	A+PTR	intranet.santapola.es
158.255.239.251	A+PTR	correo.santapola.es
158.255.239.252	A	ofitel.santapola.es
158.255.239.255	PTR	255.red-158-255-239.telecablesantapola.es