Robtex

Up: 151.238.144.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 151.238.148.0/23
Down right: 151.238.150.0/23

IP	Type	Hostname
151.238.148.133	PTR	151-238-148-133.shatel.ir
151.238.148.180	PTR	151-238-148-180.rasana.net
151.238.149.23	PTR	151-238-149-23.rasana.net
151.238.149.106	PTR	151-238-149-106.rasana.net
151.238.149.128	PTR	151-238-149-128.shatel.ir
151.238.150.3	PTR	151-238-150-3.shatel.ir
151.238.150.24	PTR	151-238-150-24.shatel.ir
151.238.150.171	PTR	151-238-150-171.shatel.ir