Robtex

Up: 46.255.144.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 46.255.152.0/22
Down right: 46.255.156.0/22

IP	Type	Hostname
46.255.152.0	PTR	host-46-255-152-0.bitbuzzdsl.com
46.255.152.8	PTR	host-46-255-152-8.bitbuzzdsl.com
46.255.152.16	PTR	host-46-255-152-16.bitbuzzdsl.com
46.255.152.24	PTR	host-46-255-152-24.bitbuzzdsl.com
46.255.152.32	PTR	host-46-255-152-32.bitbuzzdsl.com
46.255.152.40	PTR	host-46-255-152-40.bitbuzzdsl.com
46.255.152.48	PTR	host-46-255-152-48.bitbuzzdsl.com
46.255.152.56	PTR	host-46-255-152-56.bitbuzzdsl.com
46.255.152.64	PTR	host-46-255-152-64.bitbuzzdsl.com
46.255.152.114	A	host-46-255-152-114.bitbuzzdsl.com
46.255.152.138	A+PTR	if0.bbmerion.sites.bitbuzz.net
46.255.152.138	A+PTR	bbmerion.sites.bitbuzz.net
46.255.152.202	A+PTR	host-46-255-152-202.bitbuzzdsl.com
46.255.153.98	A+PTR	host-46-255-153-98.bitbuzzdsl.com
46.255.153.98	PTR	bbtrlcrk.sites.bitbuzz.net
46.255.154.18	A+PTR	host-46-255-154-18.bitbuzzdsl.com
46.255.154.77	A	host-46-255-154-77.bitbuzzdsl.com
46.255.154.82	A+PTR	host-46-255-154-82.bitbuzzdsl.com
46.255.154.82	A+PTR	bbmonteh.sites.bitbuzz.net
46.255.154.204	A	host-46-255-154-204.bitbuzzdsl.com
46.255.154.204	A	bbtalmid.sites.bitbuzz.net
46.255.154.226	A	host-46-255-154-226.bitbuzzdsl.com
46.255.154.249	A	host-46-255-154-249.bitbuzzdsl.com
46.255.155.56	A	host-46-255-155-56.bitbuzzdsl.com
46.255.155.133	A	host-46-255-155-133.bitbuzzdsl.com
46.255.155.219	A	host-46-255-155-219.bitbuzzdsl.com
46.255.157.158	A	host-46-255-157-158.bitbuzzdsl.com
46.255.159.55	A	host-46-255-159-55.bitbuzzdsl.com
46.255.159.71	A	host-46-255-159-71.bitbuzzdsl.com
46.255.159.113	A	host-46-255-159-113.bitbuzzdsl.com
46.255.159.162	A	host-46-255-159-162.bitbuzzdsl.com
46.255.159.219	A	host-46-255-159-219.bitbuzzdsl.com
46.255.159.255	A	host-46-255-159-255.bitbuzzdsl.com