Robtex

Up: 189.240.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 189.240.128.0/20
Down right: 189.240.144.0/20

IP	Type	Hostname
189.240.129.49	PTR	customer-189-240-129-49.uninet-ide.com.mx
189.240.139.22	PTR	customer-189-240-139-22.uninet-ide.com.mx
189.240.139.25	PTR	customer-189-240-139-25.uninet-ide.com.mx
189.240.144.13	PTR	customer-189-240-144-13.uninet-ide.com.mx
189.240.146.34	PTR	customer-189-240-146-34.uninet-ide.com.mx
189.240.146.67	PTR	customer-189-240-146-67.uninet-ide.com.mx
189.240.146.194	PTR	customer-189-240-146-194.uninet-ide.com.mx
189.240.146.226	PTR	customer-189-240-146-226.uninet-ide.com.mx
189.240.152.152	PTR	customer-189-240-152-152.uninet-ide.com.mx
189.240.152.214	PTR	customer-189-240-152-214.uninet-ide.com.mx
189.240.155.5	PTR	customer-189-240-155-5.uninet-ide.com.mx