Robtex

Up: 220.229.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 220.229.248.0/22
Down right: 220.229.252.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
220.229.248.1	PTR	ns1.secom.com.tw
220.229.248.1	A	ns1.leebao.com.tw
220.229.248.1	A	ns1.bonboncity.tw
220.229.248.3	PTR	send.secom.com.tw
220.229.248.6	PTR	mail.babyboss.tw
220.229.248.32	A+PTR	kptodo.secom.com.tw
220.229.248.33	A+PTR	kstodo.kssecurity.com.tw
220.229.248.37	A	www.bonboncity.tw
220.229.248.37	A	smtp.bonboncity.tw
220.229.248.74	A	smtp.leebao.com.tw
220.229.248.74	A	leebao.com.tw
220.229.248.83	A+PTR	qus.secom.com.tw
220.229.248.90	A+PTR	email.sigmu.com.tw
220.229.248.90	A	sigmu.com.tw
220.229.248.204	PTR	smtp.aiontech.com.tw
220.229.248.204	PTR	smtp.leebao.com.tw.248.229.220.in-addr.arpa
220.229.248.204	A	smtp.leebao.com.tw
220.229.248.205	PTR	aiontech.com.tw
220.229.248.205	PTR	pop3.aiontech.com.tw
220.229.248.205	PTR	webmail.aiontech.com.tw
220.229.248.206	PTR	groupmail.aiontech.com.tw
220.229.248.206	PTR	email.myvita.com.tw
220.229.248.216	A	www.mybiz.tw
220.229.248.216	A	www.mybiz.net.tw
220.229.248.233	A+PTR	secom.com.tw
220.229.248.233	A	secom.tw
220.229.248.240	A	mybiz.tw
220.229.249.6	A	tomoplace.com
220.229.249.217	A	na-ims01.nextanimation.com.tw
220.229.249.218	A	na-ims02.nextanimation.com.tw
220.229.250.12	PTR	email.tna.com.tw
220.229.250.12	A	tna.com.tw
220.229.250.13	PTR	dns2.tna.com.tw
220.229.250.13	PTR	ecard.tna.com.tw
220.229.250.13	A	dns2.flytransasia.jp
220.229.250.37	PTR	mg1.tna.com.tw
220.229.250.37	PTR	mg1.vair.com.tw
220.229.250.54	A	flytransasia.jp
220.229.250.54	A	flytransasia.com
220.229.250.61	PTR	dns1.tna.com.tw
220.229.250.61	A+PTR	edm.tna.com.tw
220.229.250.61	A	dns1.legendtravel.com.tw
220.229.253.8	PTR	webmail.ctdgroup.com
220.229.253.8	A+PTR	pmhah.ctdgroup.com
220.229.253.8	PTR	smtp.ctdgroup.com
220.229.253.10	A	mg.pmhah.com
220.229.253.10	A	mg.pmhgroup.com
220.229.253.36	A	smg.ctdgroup.com
220.229.253.208	PTR	ll-220-229-253-208.ll.sparqnet.net
220.229.253.209	PTR	ll-220-229-253-209.ll.sparqnet.net
220.229.253.211	PTR	ll-220-229-253-211.ll.sparqnet.net
220.229.253.216	PTR	ll-220-229-253-216.ll.sparqnet.net
220.229.253.217	PTR	ll-220-229-253-217.ll.sparqnet.net
220.229.253.218	PTR	ll-220-229-253-218.ll.sparqnet.net
220.229.253.219	PTR	ll-220-229-253-219.ll.sparqnet.net
220.229.253.224	PTR	ll-220-229-253-224.ll.sparqnet.net
220.229.253.225	PTR	ll-220-229-253-225.ll.sparqnet.net
220.229.253.226	PTR	ll-220-229-253-226.ll.sparqnet.net
220.229.253.227	PTR	ll-220-229-253-227.ll.sparqnet.net
220.229.253.232	PTR	ll-220-229-253-232.ll.sparqnet.net
220.229.253.233	PTR	ll-220-229-253-233.ll.sparqnet.net
220.229.253.234	PTR	ll-220-229-253-234.ll.sparqnet.net
220.229.253.235	PTR	ll-220-229-253-235.ll.sparqnet.net
220.229.253.240	PTR	ll-220-229-253-240.ll.sparqnet.net
220.229.253.241	PTR	ll-220-229-253-241.ll.sparqnet.net
220.229.253.243	PTR	ll-220-229-253-243.ll.sparqnet.net
220.229.253.248	PTR	ll-220-229-253-248.ll.sparqnet.net
220.229.253.249	PTR	ll-220-229-253-249.ll.sparqnet.net
220.229.253.250	PTR	ll-220-229-253-250.ll.sparqnet.net
220.229.253.251	PTR	ll-220-229-253-251.ll.sparqnet.net
220.229.254.11	PTR	sp03.yuanta.com
220.229.254.21	PTR	sp01.yuanta.com
220.229.254.22	PTR	sp02.yuanta.com
220.229.254.31	PTR	kb-fhchub01.yuanta.com
220.229.254.32	PTR	kb-fhchub02.yuanta.com
220.229.254.33	PTR	webmail.yuanta.com