Robtex

Up: 8.6.244.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 8.6.244.0/24
Down right: 8.6.245.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
8.6.244.10	PTR	this.name.is.invalid.ufl.edu
8.6.244.26	PTR	this.name.is.invalid.ufl.edu
8.6.244.41	PTR	this.name.is.invalid.ufl.edu
8.6.244.43	PTR	this.name.is.invalid.ufl.edu
8.6.244.76	PTR	this.name.is.invalid.ufl.edu
8.6.244.90	PTR	this.name.is.invalid.ufl.edu
8.6.244.96	PTR	this.name.is.invalid.ufl.edu
8.6.244.148	PTR	this.name.is.invalid.ufl.edu
8.6.244.173	PTR	this.name.is.invalid.ufl.edu
8.6.244.199	PTR	this.name.is.invalid.ufl.edu
8.6.244.206	PTR	this.name.is.invalid.ufl.edu
8.6.244.244	PTR	this.name.is.invalid.ufl.edu
8.6.245.6	PTR	this.name.is.invalid.ufl.edu
8.6.245.7	PTR	this.name.is.invalid.ufl.edu
8.6.245.11	PTR	this.name.is.invalid.ufl.edu
8.6.245.12	A+PTR	tsm3.cns.ufl.edu
8.6.245.13	A+PTR	tsm9.osg.ufl.edu
8.6.245.30	A+PTR	rns.name.ufl.edu
8.6.245.30	PTR	rns.name.ufl.edu.at.ufl.edu
8.6.245.30	A	d.ns.46.227.128.in-addr.arpa
8.6.245.32	A+PTR	rnsb.name.ufl.edu
8.6.245.79	PTR	this.name.is.invalid.ufl.edu
8.6.245.90	PTR	this.name.is.invalid.ufl.edu
8.6.245.108	PTR	this.name.is.invalid.ufl.edu
8.6.245.132	PTR	this.name.is.invalid.ufl.edu
8.6.245.200	PTR	this.name.is.invalid.ufl.edu
8.6.245.216	PTR	this.name.is.invalid.ufl.edu
8.6.245.235	PTR	this.name.is.invalid.ufl.edu
8.6.245.246	PTR	this.name.is.invalid.ufl.edu