Robtex

Up: 203.184.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 203.184.0.0/21
Down right: 203.184.8.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.184.0.0	PTR	203-184-0-0-dynamic.callplus.net.nz
203.184.0.19	PTR	203-184-0-19-dynamic.callplus.net.nz
203.184.0.227	PTR	203-184-0-227-dynamic.callplus.net.nz
203.184.1.8	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.3.2	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.4.151	PTR	203-184-4-151-dynamic.callplus.net.nz
203.184.5.2	PTR	203-184-5-2-dynamic.callplus.net.nz
203.184.5.12	A	r1---sn-j5aa2a0n-fabe.googlevideo.com
203.184.5.12	A	r1.sn-j5aa2a0n-fabe.googlevideo.com
203.184.5.13	A	r2---sn-j5aa2a0n-fabe.googlevideo.com
203.184.5.13	A	r2.sn-j5aa2a0n-fabe.googlevideo.com
203.184.5.34	PTR	203-184-5-34-dynamic.callplus.net.nz
203.184.5.73	PTR	203-184-5-73-dynamic.callplus.net.nz
203.184.6.34	A	instagram.fwlg3-1.fna.fbcdn.net
203.184.6.99	PTR	203-184-6-99-dynamic.callplus.net.nz
203.184.7.12	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.7.12	A	r1.sn-j5aa2a0n-jije.googlevideo.com
203.184.7.12	A	r1---sn-j5aa2a0n-jije.googlevideo.com
203.184.7.13	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.7.13	A	r2.sn-j5aa2a0n-jije.googlevideo.com
203.184.7.13	A	r2---sn-j5aa2a0n-jije.googlevideo.com
203.184.7.68	A+PTR	chch.linetest.nz
203.184.7.97	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.7.252	PTR	203-184-7-252-dynamic.callplus.net.nz
203.184.8.12	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.8.12	A	r1---sn-j5aa2a0n-ia1e.googlevideo.com
203.184.8.12	A	r1.sn-j5aa2a0n-ia1e.googlevideo.com
203.184.8.13	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.8.13	A	r2---sn-j5aa2a0n-ia1e.googlevideo.com
203.184.8.13	A	r2.sn-j5aa2a0n-ia1e.googlevideo.com
203.184.8.14	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.8.65	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.8.193	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.11.166	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.11.166	A	5516kk.com
203.184.12.31	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.14.226	PTR	dynamic-cpe-pool.callplus.net.nz
203.184.15.2	PTR	203-184-15-2-dynamic.callplus.net.nz
203.184.15.56	PTR	203-184-15-56-dynamic.callplus.net.nz
203.184.15.84	PTR	dlit.co.nz
203.184.15.84	A	imap.dlit.co.nz
203.184.15.84	A	pcclinic.co.nz