Robtex

Up: 187.142.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 187.142.32.0/20
Down right: 187.142.48.0/20

IP	Type	Hostname
187.142.36.144	A	mail.dialuc.com
187.142.37.224	PTR	dsl-187-142-37-224-dyn.prod-infinitum.com.mx
187.142.39.2	PTR	dsl-187-142-39-2-dyn.prod-infinitum.com.mx
187.142.49.226	PTR	dsl-187-142-49-226-dyn.prod-infinitum.com.mx
187.142.53.250	A	avehass.com