Robtex

Up: 81.199.96.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 81.199.96.0/22
Down right: 81.199.100.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.199.96.59	PTR	mail.ahc-mms.com.zm
81.199.96.67	PTR	router.boc.com.zm
81.199.96.84	PTR	router.simba.edu.zm
81.199.96.86	PTR	mail.ssm.co.zm
81.199.96.113	PTR	router.cbu.edu.zm
81.199.96.115	PTR	webserver.cbu.edu.zm
81.199.96.130	PTR	mail.cec.com.zm
81.199.96.147	PTR	mail.mukuba.com.zm
81.199.96.194	PTR	mail.dyno.com.zm
81.199.96.199	PTR	mail.workers.com.zm
81.199.96.218	PTR	mail.tvtc.edu.zm
81.199.96.226	PTR	mail.ofmconv.org.zm
81.199.97.2	PTR	mail.indeni.com.zm
81.199.97.2	A	stelecom.cd
81.199.97.2	A	ns1.stelecom.cd
81.199.97.69	A	manica-zambia.com
81.199.97.166	A	mail2.cobil.cd
81.199.97.184	A	mail.stelecom.cd
81.199.100.163	PTR	galaxy.coppernet.zm
81.199.100.184	A	encoder.coppernet.zm
81.199.100.229	PTR	mail.chaminuka.com.zm
81.199.101.39	PTR	81.199.101.39.satcom-systems.net
81.199.101.40	PTR	81.199.101.40.satcom-systems.net
81.199.101.41	PTR	81.199.101.41.satcom-systems.net
81.199.101.48	PTR	81.199.101.48.satcom-systems.net
81.199.101.64	PTR	81.199.101.64.satcom-systems.net
81.199.101.81	PTR	81.199.101.81.satcom-systems.net
81.199.101.81	A	boz.zm
81.199.101.82	PTR	81.199.101.82.satcom-systems.net
81.199.101.82	A	mail.boz.zm
81.199.101.83	A+PTR	smtp01.boz.zm
81.199.101.87	A	mail.edp.co.zm
81.199.101.120	PTR	81.199.101.120.satcom-systems.net
81.199.102.8	A	mail01.accesszambia.com
81.199.102.34	PTR	mail.interconti.com.zm
81.199.102.64	PTR	mail.libes.edu.zm
81.199.102.141	PTR	mail.mtnzambia.co.zm
81.199.103.51	A	mail.flykorongo.com
81.199.103.51	A	mail.korongoairlines.com