Robtex

Up: 222.164.56.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 222.164.56.0/23
Down right: 222.164.58.0/23

IP	Type	Hostname
222.164.56.210	PTR	cm210.epsilon56.maxonline.com.sg
222.164.57.61	PTR	unknown.maxonline.com.sg
222.164.57.90	PTR	90.57.164.222.starhub.net.sg
222.164.57.90	A	coke2code.net
222.164.57.193	PTR	193.57.164.222.starhub.net.sg
222.164.58.4	PTR	4.58.164.222.starhub.net.sg
222.164.59.110	PTR	110.59.164.222.starhub.net.sg
222.164.59.200	PTR	200.59.164.222.starhub.net.sg