Robtex

Up: 216.99.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 216.99.56.0/22
Down right: 216.99.60.0/22

IP	Type	Hostname
216.99.56.88	PTR	ip-88.56.99.216.dsl-cust.ca.inter.net
216.99.56.96	PTR	ip-96.56.99.216.dsl-cust.ca.inter.net
216.99.56.160	PTR	ip-160.56.99.216.dsl-cust.ca.inter.net
216.99.57.65	PTR	ip-65.57.99.216.dsl-cust.ca.inter.net
216.99.57.177	PTR	ip-177.57.99.216.dsl-cust.ca.inter.net
216.99.58.10	PTR	ip-10.58.99.216.dsl-cust.ca.inter.net
216.99.58.11	PTR	ip-11.58.99.216.dsl-cust.ca.inter.net
216.99.58.217	PTR	ip-217.58.99.216.dsl-cust.ca.inter.net
216.99.60.21	A	greateratlantaga.com
216.99.60.157	A	gapeach.com
216.99.61.58	PTR	ip-58.61.99.216.dsl-cust.ca.inter.net
216.99.61.138	PTR	ip-138.61.99.216.dsl-cust.ca.inter.net
216.99.61.146	PTR	ip-146.61.99.216.dsl-cust.ca.inter.net