Robtex

Up: 23.228.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 23.228.128.0/21
Down right: 23.228.136.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
23.228.128.216	PTR	23-228-128-216.mci.googlefiber.net
23.228.129.12	A	r1.sn-bvvbax4pcxg-hjpl.gvt1.com
23.228.129.12	A	r1---sn-bvvbax4pcxg-hjpl.googlevideo.com
23.228.129.13	A	r2---sn-bvvbax4pcxg-hjpl.googlevideo.com
23.228.129.13	A	r2.sn-bvvbax4pcxg-hjpl.gvt1.com
23.228.129.16	A	r5---sn-bvvbax4pcxg-hjpl.gvt1.com
23.228.129.16	A	r5.sn-bvvbax4pcxg-hjpl.gvt1.com
23.228.129.16	A	r5---sn-bvvbax4pcxg-hjpl.googlevideo.com
23.228.129.17	A	r6.sn-bvvbax4pcxg-hjpl.snap.gvt1.com
23.228.129.65	A	occ-0-436-1722.1.nflxso.net
23.228.129.65	A	occ-2-436-1722.1.nflxso.net
23.228.129.65	A	occ-2-436-2218.1.nflxso.net
23.228.129.67	A	occ-0-436-1722.1.nflxso.net
23.228.129.67	A	occ-2-436-1722.1.nflxso.net
23.228.129.67	A	occ-2-436-2218.1.nflxso.net
23.228.129.69	PTR	23-228-129-69.mci.googlefiber.net
23.228.129.71	PTR	23-228-129-71.mci.googlefiber.net
23.228.129.81	A+PTR	23-228-129-81.mci.googlefiber.net
23.228.129.81	A	ipv4-c016-mci001-google-isp.1.oca.nflxvideo.net
23.228.129.85	A+PTR	23-228-129-85.mci.googlefiber.net
23.228.129.85	A	ipv4-c004-aus001-google-isp.1.oca.nflxvideo.net
23.228.129.87	PTR	23-228-129-87.mci.googlefiber.net
23.228.129.210	A+PTR	23-228-129-210.mci.googlefiber.net
23.228.129.225	A+PTR	23-228-129-225.mci.googlefiber.net
23.228.129.225	A	ipv4-c001-atl001-google-isp.ftl.nflxvideo.net
23.228.129.225	A	occ-0-181-2433.1.nflxso.net
23.228.129.227	PTR	23-228-129-227.mci.googlefiber.net
23.228.129.229	PTR	23-228-129-229.mci.googlefiber.net
23.228.129.231	PTR	23-228-129-231.mci.googlefiber.net
23.228.129.239	A	occ-0-436-1722.1.nflxso.net
23.228.129.239	A	occ-2-436-1722.1.nflxso.net
23.228.129.239	A	occ-2-436-2218.1.nflxso.net
23.228.129.245	A+PTR	23-228-129-245.mci.googlefiber.net
23.228.129.245	A	ipv4-c005-slc001-google-isp.1.oca.nflxvideo.net
23.228.129.247	A+PTR	23-228-129-247.mci.googlefiber.net
23.228.129.247	A	ipv4-c017-mci001-google-isp.1.oca.nflxvideo.net
23.228.130.4	PTR	23-228-130-4.mci.googlefiber.net
23.228.130.12	A+PTR	23-228-130-12.mci.googlefiber.net
23.228.130.12	A	r1.sn-bvvbax4pcxg-co5e.googlevideo.com
23.228.130.13	A+PTR	23-228-130-13.mci.googlefiber.net
23.228.130.13	A	r2.sn-bvvbax4pcxg-co5e.googlevideo.com
23.228.130.14	PTR	23-228-130-14.mci.googlefiber.net
23.228.130.76	A+PTR	23-228-130-76.mci.googlefiber.net
23.228.130.76	A	r1.sn-bvvbax4pcxg-jaue.googlevideo.com
23.228.130.77	A+PTR	23-228-130-77.mci.googlefiber.net
23.228.130.77	A	r2.sn-bvvbax4pcxg-jaue.googlevideo.com
23.228.130.78	PTR	23-228-130-78.mci.googlefiber.net
23.228.130.102	A+PTR	23-228-130-102.mci.googlefiber.net
23.228.130.140	A+PTR	23-228-130-140.mci.googlefiber.net
23.228.130.140	A	r1.sn-bvvbax4pcxg-gq0e.googlevideo.com
23.228.130.140	A	r1.sn-bvvbax4pcxg-gq0e.gvt1.com
23.228.130.141	PTR	23-228-130-141.mci.googlefiber.net
23.228.130.141	A	r2.sn-bvvbax4pcxg-gq0e.googlevideo.com
23.228.130.142	PTR	23-228-130-142.mci.googlefiber.net
23.228.130.191	A+PTR	23-228-130-191.mci.googlefiber.net
23.228.130.204	A+PTR	23-228-130-204.mci.googlefiber.net
23.228.130.204	A	r1---sn-bvvbax4pcxg-hjps.googlevideo.com
23.228.130.204	A	r1.sn-bvvbax4pcxg-hjps.snap.gvt1.com
23.228.130.208	A+PTR	23-228-130-208.mci.googlefiber.net
23.228.130.208	A	r5.sn-bvvbax4pcxg-hjps.googlevideo.com
23.228.130.208	A	r5.sn-bvvbax4pcxg-hjps.gvt1.com
23.228.130.209	PTR	23-228-130-209.mci.googlefiber.net
23.228.130.209	A	r6.sn-bvvbax4pcxg-hjps.googlevideo.com
23.228.130.210	PTR	23-228-130-210.mci.googlefiber.net
23.228.130.211	PTR	23-228-130-211.mci.googlefiber.net
23.228.131.65	A+PTR	23-228-131-65.mci.googlefiber.net
23.228.131.81	A+PTR	23-228-131-81.mci.googlefiber.net
23.228.131.81	A	scontent.fmkc1-1.fna.fbcdn.net
23.228.131.81	A	external.fmkc1-1.fna.fbcdn.net
23.228.131.82	PTR	23-228-131-82.mci.googlefiber.net
23.228.131.82	A	video.fmkc1-1.fna.fbcdn.net
23.228.131.94	PTR	23-228-131-94.mci.googlefiber.net
23.228.131.96	A+PTR	23-228-131-96.mci.googlefiber.net
23.228.131.96	A	instagram.fmkc1-1.fna.fbcdn.net
23.228.131.97	A+PTR	23-228-131-97.mci.googlefiber.net
23.228.131.97	A	sonar.fmkc1-1.fna.whatsapp.net
23.228.131.98	PTR	23-228-131-98.mci.googlefiber.net
23.228.131.145	A+PTR	23-228-131-145.mci.googlefiber.net
23.228.131.145	A	scontent.faus1-1.fna.fbcdn.net
23.228.131.146	A	video.faus1-1.fna.fbcdn.net
23.228.131.161	A+PTR	23-228-131-161.mci.googlefiber.net
23.228.131.161	A	instagram.faus1-1.fna.fbcdn.net
23.228.131.171	A	tylervivanco.com
23.228.131.204	A+PTR	23-228-131-204.mci.googlefiber.net
23.228.131.204	A	r1.sn-bvvbax4pcxg-hjpz.googlevideo.com
23.228.131.205	PTR	23-228-131-205.mci.googlefiber.net
23.228.131.205	A	r2.sn-bvvbax4pcxg-hjpz.gvt1.com
23.228.131.205	A	r2.sn-bvvbax4pcxg-hjpz.googlevideo.com
23.228.131.206	PTR	23-228-131-206.mci.googlefiber.net
23.228.131.207	PTR	23-228-131-207.mci.googlefiber.net
23.228.131.225	A+PTR	23-228-131-225.mci.googlefiber.net
23.228.131.225	A	ipv4-c001-skf001-google-isp.ftl.nflxvideo.net
23.228.131.225	A	occ-0-4191-116.1.nflxso.net
23.228.131.227	PTR	23-228-131-227.mci.googlefiber.net
23.228.131.227	A	occ-0-4191-116.1.nflxso.net
23.228.131.227	A	occ-0-4191-114.1.nflxso.net
23.228.131.239	PTR	23-228-131-239.mci.googlefiber.net
23.228.134.233	A+PTR	23-228-134-233.mci.googlefiber.net
23.228.135.71	A	server.sennboswell.com
23.228.136.58	A+PTR	23-228-136-58.mci.googlefiber.net
23.228.136.202	A	mail.pallotto.net
23.228.139.186	A	mail.nathanfettinger.com
23.228.139.240	A	mail.bostoncommons.com
23.228.140.11	A+PTR	23-228-140-11.mci.googlefiber.net
23.228.140.11	A	mail.rdikc.org
23.228.140.135	A+PTR	23-228-140-135.mci.googlefiber.net
23.228.140.135	A	lumen-presentation-parish.org
23.228.140.233	A+PTR	23-228-140-233.mci.googlefiber.net
23.228.140.233	A	thesummerstorms.com
23.228.140.233	A	ns1.revalence.net
23.228.141.5	PTR	23-228-141-5.mci.googlefiber.net
23.228.141.5	A	certifiednewhomesalesspecialists.com
23.228.141.5	A	builderssocialmarketing.com
23.228.141.24	A	23-228-141-24.mci.googlefiber.net
23.228.141.49	A	mail.ppsinc.com
23.228.141.73	A	mail.embassypropertiesinc.com
23.228.141.76	A+PTR	23-228-141-76.mci.googlefiber.net
23.228.141.85	A+PTR	23-228-141-85.mci.googlefiber.net
23.228.141.97	A	mail.sorg.me
23.228.141.102	PTR	23-228-141-102.mci.googlefiber.net
23.228.141.102	A	mail.clinical-assoc.com
23.228.141.105	A	team.geneshinc.com
23.228.141.106	PTR	23-228-141-106.mci.googlefiber.net
23.228.141.106	A	stjremote.com
23.228.141.124	A+PTR	23-228-141-124.mci.googlefiber.net
23.228.141.142	A+PTR	23-228-141-142.mci.googlefiber.net
23.228.141.173	A+PTR	23-228-141-173.mci.googlefiber.net
23.228.141.209	A+PTR	23-228-141-209.mci.googlefiber.net
23.228.141.210	PTR	23-228-141-210.mci.googlefiber.net
23.228.141.210	A	kansys.com
23.228.141.230	A+PTR	23-228-141-230.mci.googlefiber.net
23.228.141.230	A	sip2020.com
23.228.142.7	A+PTR	23-228-142-7.mci.googlefiber.net
23.228.142.37	A+PTR	mail.ha-kc.org
23.228.142.46	A+PTR	23-228-142-46.mci.googlefiber.net
23.228.142.49	A	webmail.waldeckpatterson.com
23.228.142.74	A+PTR	23-228-142-74.mci.googlefiber.net
23.228.142.94	A	www.wightcastle.com
23.228.142.94	A	home.wightcastle.com
23.228.142.104	A+PTR	23-228-142-104.mci.googlefiber.net
23.228.142.120	PTR	remote.lawrenceglass.net
23.228.142.120	A	lawrenceglass.net
23.228.142.120	A	23-228-142-120.mci.googlefiber.net
23.228.142.133	A+PTR	23-228-142-133.mci.googlefiber.net
23.228.142.144	A+PTR	23-228-142-144.mci.googlefiber.net
23.228.142.144	A	www.wallboardspecialties.com
23.228.142.151	A+PTR	23-228-142-151.mci.googlefiber.net
23.228.142.208	A+PTR	23-228-142-208.mci.googlefiber.net
23.228.142.208	A	faaserver.com
23.228.143.109	A+PTR	23-228-143-109.mci.googlefiber.net
23.228.143.109	A	burdissvpn.com
23.228.143.207	A+PTR	23-228-143-207.mci.googlefiber.net
23.228.143.207	A	macrokc.net
23.228.143.229	A+PTR	23-228-143-229.mci.googlefiber.net
23.228.143.229	A	sdcactonline.com
23.228.143.243	A+PTR	23-228-143-243.mci.googlefiber.net
23.228.143.243	A	mclineylumberandsupply.com