Robtex

Up: 69.72.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 69.72.48.0/22
Down right: 69.72.52.0/22

IP	Type	Hostname
69.72.53.59	PTR	wlbr-69-72-53-59.dynamic-dialup.coretel.net
69.72.53.98	PTR	wlbr-69-72-53-98.dynamic-dialup.coretel.net
69.72.53.139	PTR	wlbr-69-72-53-139.dynamic-dialup.coretel.net
69.72.54.147	A+PTR	east-69-72-54-147.dynamic-dialup.coretel.net