Robtex

Up: 189.239.96.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 189.239.112.0/21
Down right: 189.239.120.0/21

IP	Type	Hostname
189.239.114.109	PTR	dsl-189-239-114-109-dyn.prod-infinitum.com.mx
189.239.116.238	PTR	dsl-189-239-116-238-dyn.prod-infinitum.com.mx
189.239.120.71	PTR	dsl-189-239-120-71-dyn.prod-infinitum.com.mx
189.239.120.122	PTR	dsl-189-239-120-122-dyn.prod-infinitum.com.mx
189.239.120.240	PTR	dsl-189-239-120-240-dyn.prod-infinitum.com.mx
189.239.123.62	PTR	dsl-189-239-123-62-dyn.prod-infinitum.com.mx
189.239.124.200	PTR	dsl-189-239-124-200-dyn.prod-infinitum.com.mx
189.239.126.40	PTR	dsl-189-239-126-40-dyn.prod-infinitum.com.mx
189.239.127.5	PTR	dsl-189-239-127-5-dyn.prod-infinitum.com.mx