Robtex

Up: 41.223.24.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 41.223.28.0/23
Down right: 41.223.30.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
41.223.28.3	PTR	dladnsbox200.dnsbox
41.223.28.3	A+PTR	dns2.creolink.com
41.223.28.3	PTR	host28-3.creolink.com
41.223.28.4	PTR	host28-4.creolink.com
41.223.28.4	A+PTR	dns.creolink.com
41.223.28.4	PTR	dnsbox400.dnsbox
41.223.28.6	PTR	host28-6.creolink.com
41.223.28.6	A+PTR	dns2.creolink.net
41.223.28.6	PTR	douala.creolink.net
41.223.28.9	PTR	host28-9.creolink.com
41.223.28.10	PTR	host28-10.creolink.com
41.223.28.12	PTR	host28-12.creolink.com
41.223.28.16	PTR	host28-16.creolink.com
41.223.28.20	PTR	host28-20.creolink.com
41.223.28.30	PTR	host28-30.creolink.com
41.223.28.37	PTR	host28-37.creolink.com
41.223.28.38	PTR	host28-38.creolink.com
41.223.28.61	PTR	host28-61.creolink.com
41.223.28.69	PTR	host28-69.creolink.com
41.223.28.89	PTR	host28-89.creolink.com
41.223.28.89	A	cm-g4s.com
41.223.28.91	PTR	host28-91.creolink.com
41.223.28.92	PTR	host28-92.creolink.com
41.223.28.100	PTR	host28-100.creolink.com
41.223.28.109	PTR	host28-109.creolink.com
41.223.28.127	PTR	host28-127.creolink.com
41.223.28.130	PTR	host28-130.creolink.com
41.223.28.144	PTR	host28-144.creolink.com
41.223.28.147	PTR	host28-147.creolink.com
41.223.28.150	PTR	host28-150.creolink.com
41.223.28.189	PTR	mail.guichetunique.org
41.223.28.204	PTR	host28-204.creolink.com
41.223.28.207	PTR	host28-207.creolink.com
41.223.28.218	PTR	host28-218.creolink.com
41.223.28.220	PTR	host28-220.creolink.com
41.223.28.227	PTR	billing.creolink.com
41.223.28.227	PTR	callshop.creolink.com
41.223.28.227	PTR	host28-227.creolink.com
41.223.28.228	PTR	host28-228.creolink.com
41.223.28.228	A	maps.creolink.com
41.223.28.228	A	gpsonline.creolink.com
41.223.28.235	PTR	host28-235.creolink.com
41.223.28.239	PTR	host28-239.creolink.com
41.223.28.247	PTR	host28-247.creolink.com
41.223.28.250	PTR	host28-250.creolink.com
41.223.29.5	PTR	host29-5.creolink.com
41.223.29.110	PTR	host29-110.creolink.com
41.223.29.121	PTR	host29-121.creolink.com
41.223.29.140	PTR	host29-140.creolink.com
41.223.29.140	A	*.socomarcm.net
41.223.29.140	A	socomarcm.net
41.223.29.228	PTR	host29-228.creolink.com
41.223.29.248	PTR	host29-248.creolink.com
41.223.30.1	PTR	host30-1.creolink.com
41.223.30.2	PTR	host30-2.creolink.com
41.223.30.2	A+PTR	dns1.creolink.net
41.223.30.2	PTR	yaounde.creolink.net
41.223.30.3	A+PTR	dns1.creolink.com
41.223.30.4	PTR	autodiscover.creolink.com
41.223.30.4	PTR	crm.creolink.com
41.223.30.4	PTR	crm11.creolink.com
41.223.30.8	A+PTR	drweb.creolink.com
41.223.30.8	PTR	host30-8.creolink.com
41.223.30.9	PTR	host30-9.creolink.com
41.223.30.9	PTR	sales.gmcassurances.com
41.223.30.9	PTR	www.gmcassurances.com
41.223.30.11	PTR	pop3.creolink.cm
41.223.30.11	PTR	smtp.creolink.cm
41.223.30.11	A+PTR	cyberlink.creolink.com
41.223.30.13	PTR	host30-13.creolink.com
41.223.30.13	A+PTR	ntp.creolink.com
41.223.30.13	PTR	ts.creolink.com
41.223.30.19	A	billing.creolink.com
41.223.30.20	PTR	host30-20.creolink.com
41.223.30.22	A+PTR	smtp.agriexcam.cm
41.223.30.22	A+PTR	mail2.creolink.net
41.223.30.22	PTR	smtp.kidsofzion.net
41.223.30.25	PTR	radius.creolink.cm
41.223.30.25	PTR	billing2.creolink.com
41.223.30.38	A	callshop.creolink.net
41.223.30.41	PTR	pbx-cc.creolink.cm
41.223.30.41	A+PTR	elastix.creolink.com
41.223.30.41	PTR	host30-41.creolink.com
41.223.30.43	PTR	host30-43.creolink.com
41.223.30.44	PTR	creolink.cm
41.223.30.44	PTR	lebusinessici.cm
41.223.30.44	PTR	idieze.com
41.223.30.50	PTR	host30-50.creolink.com
41.223.30.53	PTR	host30-53.creolink.com
41.223.30.55	PTR	host30-55.creolink.com
41.223.30.58	A+PTR	imap.agriexcam.cm
41.223.30.58	PTR	pop.agriexcam.cm
41.223.30.58	PTR	host30-58.creolink.com
41.223.30.60	PTR	host30-60.creolink.com
41.223.30.66	PTR	cpsp.snh.cm
41.223.30.95	PTR	host30-95.creolink.com
41.223.30.172	PTR	cm.refer.org
41.223.30.245	PTR	host30-245.creolink.com
41.223.31.12	PTR	host31-12.creolink.com
41.223.31.34	PTR	host31-34.creolink.com
41.223.31.56	PTR	host31-56.creolink.com
41.223.31.114	PTR	host31-114.creolink.com
41.223.31.153	PTR	host31-153.creolink.com
41.223.31.242	PTR	host31-242.creolink.com
41.223.31.242	A+PTR	legacy.creolink.com
41.223.31.243	PTR	mail.snh.cm
41.223.31.245	PTR	mail.creolink.cm
41.223.31.245	PTR	host31-245.creolink.com