Robtex

Up: 162.255.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 162.255.8.0/22
Down right: 162.255.12.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
162.255.15.197	A+PTR	mail.cell1net.net
162.255.15.197	A	1staccess.net
162.255.15.197	A	wap.cellular1.net
162.255.15.204	A	ns4.cell1net.net
162.255.15.204	A	ns5.cell1net.net
162.255.15.209	A	ns6.cell1net.net