Robtex

Up: 218.188.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 218.188.64.0/23
Down right: 218.188.66.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
218.188.65.11	A+PTR	mailgate1.hkbcf.com.hk
218.188.65.12	A+PTR	mailgate.hkbcf.com.hk
218.188.65.12	A	webmail.hkbcf.com.hk
218.188.65.36	A	mail.chechkbcf.com
218.188.65.54	A	mxhk.mailhost.sh.cn
218.188.65.54	A	mx.gdzhengxin.com
218.188.65.54	A	mx.royal-kincool.com
218.188.65.135	PTR	mail.ceicdata.com
218.188.65.138	A	mail10.bdo.com.hk
218.188.65.139	A	ns2.bdo.com.hk
218.188.65.141	PTR	mail.ceicdata.com
218.188.65.146	PTR	mail.ceicdata.com
218.188.65.147	A	smtp4.mccabe.com.hk
218.188.65.148	PTR	mail.ceicdata.com
218.188.65.148	A	webmail.bdo.com.hk
218.188.65.149	A+PTR	smtp1.bdo.com.hk
218.188.65.149	A+PTR	smtp1.mccabe.com.hk
218.188.65.150	PTR	webmail.bdo.com.hk
218.188.65.150	A	smtp2.bdo.com.hk
218.188.65.151	PTR	webmail.bdo.com.hk
218.188.65.152	PTR	smtp4.mccabe.com.hk
218.188.65.152	A+PTR	smtp4.bdo.com.hk
218.188.65.154	PTR	mg.bdo.com.hk
218.188.65.154	PTR	mg.mccabe.com.hk
218.188.65.154	A	mg2.bdo.com.hk
218.188.65.155	A	autodiscover.bdo.com.hk
218.188.65.157	PTR	smtp.mccabe-ehr.com
218.188.65.157	A	mail2.mccabe-ehr.com
218.188.65.157	A	mail2.bdo-valise.com
218.188.65.158	PTR	mail.ceicdata.com
218.188.65.164	PTR	mail.ceicdata.com
218.188.65.165	A	www.mccabe.com.hk
218.188.65.166	PTR	mail.ceicdata.com
218.188.65.171	PTR	mail.ceicdata.com
218.188.65.175	PTR	mail.ceicdata.com
218.188.65.184	PTR	mail.ceicdata.com
218.188.65.188	PTR	mail.ceicdata.com
218.188.65.194	PTR	mail.ceicdata.com
218.188.65.195	PTR	mail.ceicdata.com
218.188.65.195	A	*.geckos.sis.org.cn
218.188.65.195	A	geckos.sis.org.cn
218.188.65.196	PTR	mail.ceicdata.com
218.188.65.199	PTR	mail.sis.org.cn
218.188.65.200	PTR	mail.ceicdata.com
218.188.65.202	PTR	mail.ceicdata.com
218.188.65.205	PTR	mail.ceicdata.com
218.188.65.206	A	ns2.goipcloud.com
218.188.65.207	PTR	mail.ceicdata.com
218.188.65.210	PTR	smtp.concordiashanghai.org
218.188.65.210	A	smtp.ciss.com.cn
218.188.65.218	PTR	mail.ceicdata.com
218.188.65.225	PTR	mail.ceicdata.com
218.188.65.228	PTR	mail.ceicdata.com
218.188.65.230	PTR	mail.ceicdata.com
218.188.65.239	PTR	mail.ceicdata.com
218.188.65.243	PTR	mail.goipaula.com
218.188.65.243	A	mail.aulaedu.com
218.188.65.243	A	mail.goipaula.net
218.188.65.244	PTR	mail.aulaedu.com
218.188.65.246	PTR	mail.ceicdata.com
218.188.65.248	PTR	mail.ceicdata.com
218.188.65.251	PTR	mail.ceicdata.com
218.188.65.253	PTR	mail.ceicdata.com
218.188.67.82	A	link2vc.com
218.188.67.91	PTR	dam.clasp-infra.com
218.188.67.91	A	ns2.ceries-lab.com
218.188.67.179	A	www.s36.online