Robtex

Up: 192.84.16.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.84.16.0/25
Down right: 192.84.16.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.84.16.0	PTR	192-84-16-0.packet8.net
192.84.16.2	PTR	192-84-16-2.packet8.net
192.84.16.2	A	rtr1-eqix-sjo-int.packet8.net
192.84.16.3	PTR	192-84-16-3.packet8.net
192.84.16.3	A	rtr2-eqix-sjo-int.packet8.net
192.84.16.5	PTR	192-84-16-5.packet8.net
192.84.16.8	A	tun0-eqix-sjo.packet8.net
192.84.16.18	PTR	192-84-16-18.packet8.net
192.84.16.18	A	eps1.packet8.net
192.84.16.21	PTR	192-84-16-21.packet8.net
192.84.16.21	A	web1-eqix-sjo.packet8.net
192.84.16.23	A+PTR	ns1-eqix-sjo.packet8.net
192.84.16.23	A	ns1-l3-sjo.packet8.net
192.84.16.23	A	svc1-eqix-sjo.packet8.net
192.84.16.24	A+PTR	ns2-eqix-sjo.packet8.net
192.84.16.24	A	svc2-eqix-sjo.packet8.net
192.84.16.27	A+PTR	mx1.packet8.net
192.84.16.27	A	mx.packet8.net
192.84.16.27	A	mailman1-eq.packet8.net
192.84.16.30	PTR	192-84-16-30.packet8.net
192.84.16.30	A	voiptest.8x8.com
192.84.16.30	A	p1.packet8.net
192.84.16.31	PTR	192-84-16-31.packet8.net
192.84.16.31	A	pxy03-dc6.packet8.net
192.84.16.31	A	p2.packet8.net
192.84.16.32	A	p3.packet8.net
192.84.16.32	A	proxy3-eqix-sjo.packet8.net
192.84.16.33	A	p4.packet8.net
192.84.16.33	A	proxy4-eqix-sjo.packet8.net
192.84.16.34	A	p5.packet8.net
192.84.16.35	PTR	192-84-16-35.packet8.net
192.84.16.35	A	p3-eq.p8t.us
192.84.16.35	A	p24.packet8.net
192.84.16.40	A	switchboard1-eqix-sjo.packet8.net
192.84.16.41	A	switchboard2-eqix-sjo.packet8.net
192.84.16.42	A	switchboard3-eqix-sjo.packet8.net
192.84.16.43	A	switchboard4-eqix-sjo.packet8.net
192.84.16.46	PTR	192_84_16_46.packet8.net
192.84.16.46	A	vmproxy.packet8.net
192.84.16.47	PTR	192-84-16-47.packet8.net
192.84.16.47	A	st1b-eq.packet8.net
192.84.16.50	PTR	192-84-16-50.packet8.net
192.84.16.50	A	turn1-l3-sjo.packet8.net
192.84.16.56	PTR	192-84-16-56.packet8.net
192.84.16.56	A	pxy03-dc6.packet8.net
192.84.16.56	A	vovp2.packet8.net
192.84.16.59	A+PTR	mx3.packet8.net
192.84.16.60	A	inlvl1-eqix-sjo.packet8.net
192.84.16.61	PTR	192_84_16_61.packet8.net
192.84.16.61	A	outlvl1-eqix-sjo.packet8.net
192.84.16.62	A	peerproxy1-eqix-sjo.packet8.net
192.84.16.81	A	click2pop.8x8.com
192.84.16.82	PTR	192-84-16-82.packet8.net
192.84.16.82	A	voiptest.packet8.net
192.84.16.89	PTR	192-84-16-89.packet8.net
192.84.16.89	A	ip.packet8.net
192.84.16.92	A	voddebug.8x8.com
192.84.16.96	PTR	192-84-16-96.packet8.net
192.84.16.113	PTR	192-84-16-113.packet8.net
192.84.16.123	A	mediaswitch4-eqix-sjo.packet8.net
192.84.16.124	PTR	192-84-16-124.packet8.net
192.84.16.124	A	mediaswitch5-eqix-sjo.packet8.net
192.84.16.126	PTR	192-84-16-126.packet8.net
192.84.16.126	A	acata.8x8.com
192.84.16.126	A	mediaswitch7-eqix-sjo.packet8.net
192.84.16.131	A	turn1-eqix-sjo.packet8.net
192.84.16.139	PTR	192-84-16-139.packet8.net
192.84.16.140	PTR	192-84-16-140.packet8.net
192.84.16.140	A	uc1-eq.8x8.com
192.84.16.143	PTR	192-84-16-143.packet8.net
192.84.16.143	A	pcsbc-eq.packet8.net
192.84.16.146	PTR	192-84-16-146.packet8.net
192.84.16.158	A	turn1-l3-sjo.packet8.net
192.84.16.160	PTR	192-84-16-160.packet8.net
192.84.16.160	A	turn1-l3-sjo.packet8.net
192.84.16.161	PTR	192_84_16_161.packet8.net
192.84.16.167	A	turn1-l3-sjo.packet8.net
192.84.16.169	PTR	192-84-16-169.packet8.net
192.84.16.169	A	st2a-eq.packet8.net
192.84.16.170	A	tcs1-eqix-sjo.packet8.net
192.84.16.171	A	targus1-eqix-sjo.packet8.net
192.84.16.176	PTR	192-84-16-176.packet8.net
192.84.16.176	A	uc2-eq.8x8.com
192.84.16.176	A	uc.8x8.com
192.84.16.177	PTR	192_84_16_177.packet8.net
192.84.16.177	A	uc.8x8.com
192.84.16.177	A	uc3-eq.8x8.com
192.84.16.178	PTR	192-84-16-178.packet8.net
192.84.16.178	A	uc.8x8.com
192.84.16.178	A	uc4-eq.8x8.com
192.84.16.179	PTR	192-84-16-179.packet8.net
192.84.16.179	A	uc.8x8.com
192.84.16.179	A	uc5-eq.8x8.com
192.84.16.187	PTR	192-84-16-187.packet8.net
192.84.16.187	A	st2b-eq.packet8.net
192.84.16.188	PTR	192-84-16-188.packet8.net
192.84.16.190	A+PTR	voim01-eq.8x8.com
192.84.16.190	A	voim.8x8.com
192.84.16.196	A+PTR	voim02-eq.8x8.com
192.84.16.196	A	voim.8x8.com
192.84.16.212	PTR	192-84-16-212.packet8.net
192.84.16.212	A	st1a-eq.packet8.net
192.84.16.223	PTR	192_84_16_223.packet8.net
192.84.16.223	A	p1-eq.p8t.us
192.84.16.224	PTR	192-84-16-224.packet8.net
192.84.16.224	A	p22.packet8.net
192.84.16.224	A	p2-eq.p8t.us
192.84.16.244	PTR	192-84-16-244.packet8.net
192.84.16.244	A	ns2.8x8pilot.com
192.84.16.244	A	ns4.packet8-pilot.net
192.84.16.245	PTR	192-84-16-245.packet8.net
192.84.16.245	A	master02.packet8-pilot.net
192.84.16.245	A	ns3.packet8-pilot.net
192.84.16.246	A	proxy03.packet8-pilot.net
192.84.16.247	A	proxy04.packet8-pilot.net
192.84.16.248	PTR	192-84-16-248.packet8.net
192.84.16.248	A	voim.8x8.com
192.84.16.248	A	voim03-eq.8x8.com