Robtex

Up: 5.45.58.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 5.45.59.0/25
Down right: 5.45.59.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.45.59.0	PTR	r-0-59-45-5.ff.avast.com
5.45.59.11	PTR	r-11-59-45-5.ff.avast.com
5.45.59.11	A	analytics.ns1.ff.avast.com
5.45.59.12	PTR	r-12-59-45-5.ff.avast.com
5.45.59.12	A	analytics.ns1.ff.avast.com
5.45.59.18	A	treemedusa-storage-prod-001.prg1.ff.avast.com
5.45.59.26	A+PTR	prg39-001.ff.avast.com
5.45.59.33	A+PTR	prg39-008.ff.avast.com
5.45.59.35	A+PTR	prg39-010.ff.avast.com
5.45.59.35	A	auth.ns1.ff.avast.com
5.45.59.36	A+PTR	prg39-011.ff.avast.com
5.45.59.36	A	auth.ns1.ff.avast.com
5.45.59.38	A	prg39-013.ff.avast.com
5.45.59.39	A	prg39-014.ff.avast.com
5.45.59.39	A	urlinfo.ns1.ff.avast.com
5.45.59.40	A+PTR	prg39-015.ff.avast.com
5.45.59.51	A+PTR	prg34-017.ff.avast.com
5.45.59.51	A	streamback.ns1.ff.avast.com
5.45.59.69	PTR	r-69-59-45-5.ff.avast.com
5.45.59.80	PTR	r-80-59-45-5.ff.avast.com
5.45.59.80	A	ff-hyp01-ai-test.ff.avast.com
5.45.59.84	A+PTR	ff-hyp01-ipm-provider-stage.ff.avast.com
5.45.59.87	PTR	r-087-059-045-005.ff.avast.com
5.45.59.92	A+PTR	ff-hyp01-streamback2-test.ff.avast.com
5.45.59.93	A+PTR	hyp04-rep-stage.prg.ff.avast.com
5.45.59.98	A+PTR	ff-hyp01-bconsole-stage-01.ff.avast.com
5.45.59.98	A	bconsole-stage.ff.avast.com
5.45.59.108	A+PTR	hyp03-feed-1-test.prg.ff.avast.com
5.45.59.110	PTR	hyp04-cassandra-dump.prg.ff.avast.com
5.45.59.114	A+PTR	ff-hyp01-lansec-test.ff.avast.com
5.45.59.117	PTR	ipa02.prg.ff.avast.com
5.45.59.141	A+PTR	hyp04-incidents.prg.ff.avast.com
5.45.59.152	PTR	r-152-59-45-5.ff.avast.com
5.45.59.152	A	ff-backup.avast.com
5.45.59.152	A	ff-at.avast.com
5.45.59.153	PTR	r-153-59-45-5.ff.avast.com
5.45.59.153	A	ff-backup.avast.com
5.45.59.153	A	ff-at.avast.com
5.45.59.154	A+PTR	hyp03-incidents.prg.ff.avast.com
5.45.59.156	PTR	ipa03.prg.ff.avast.com
5.45.59.157	PTR	ipa01.prg.ff.avast.com
5.45.59.159	A+PTR	hyp03-phone-rep-01.prg.ff.avast.com
5.45.59.159	A	callblocker.ns1.ff.avast.com
5.45.59.167	PTR	r-167-59-45-5.ff.avast.com
5.45.59.167	A	cookie-receiver.ns1.ff.avast.com
5.45.59.167	A	cookie-receiver.ff.avast.com
5.45.59.168	PTR	r-168-59-45-5.ff.avast.com
5.45.59.168	A	cookie-receiver.ns1.ff.avast.com
5.45.59.168	A	cookie-receiver.ff.avast.com
5.45.59.173	A+PTR	hyp05-feed.prg.ff.avast.com
5.45.59.173	A	feed.ns1.ff.avast.com
5.45.59.174	A+PTR	hyp06-feed.prg.ff.avast.com
5.45.59.174	A	feed.ns1.ff.avast.com
5.45.59.180	A+PTR	hyp05-idp-proxy01.prg.ff.avast.com
5.45.59.180	A	live-proxy.ns1.ff.avast.com
5.45.59.180	A	idp-proxy.ns1.ff.avast.com
5.45.59.181	PTR	hyp06-idp-proxy02.prg.ff.avast.com
5.45.59.181	A	live-proxy.ns1.ff.avast.com
5.45.59.181	A	idp-proxy.ns1.ff.avast.com
5.45.59.189	A+PTR	hyp06-cloudscanner-proxy.prg.ff.avast.com
5.45.59.190	A+PTR	hyp05-safeprice.prg.ff.avast.com
5.45.59.190	A	safeprice.ns1.ff.avast.com
5.45.59.191	PTR	r-191-59-45-5.ff.avast.com
5.45.59.191	A	safeprice.ns1.ff.avast.com
5.45.59.191	A	hyp06-safeprice.prg.ff.avast.com
5.45.59.192	A+PTR	hyp05-brno-parking.prg.ff.avast.com
5.45.59.192	A	brno.parking.avast.com
5.45.59.194	A+PTR	hyp05-bconsole-avm-prod-01.prg.ff.avast.com
5.45.59.194	A	bconsole-avm-prod-prg.ff.avast.com
5.45.59.194	A	bconsole-avm-prod.ff.avast.com
5.45.59.195	A+PTR	hyp06-bconsole-avm-prod-02.prg.ff.avast.com
5.45.59.195	A	bconsole-avm-prod-prg.ff.avast.com
5.45.59.198	A+PTR	hyp05-olv-proxy.prg.ff.avast.com
5.45.59.198	A	olv-proxy.ns1.ff.avast.com
5.45.59.199	A+PTR	hyp06-olv-proxy.prg.ff.avast.com
5.45.59.199	A	olv-proxy.ns1.ff.avast.com
5.45.59.200	PTR	r-200-59-45-5.ff.avast.com
5.45.59.200	A	olv-proxy.ff.avast.com
5.45.59.201	PTR	r-201-59-45-5.ff.avast.com
5.45.59.201	A	olv-proxy.ff.avast.com
5.45.59.202	A+PTR	hyp05-shepherd.prg.ff.avast.com
5.45.59.203	A+PTR	hyp06-shepherd.prg.ff.avast.com
5.45.59.204	A+PTR	sky-control-stage-001.prg.ff.avast.com
5.45.59.205	PTR	r-205-59-45-5.ff.avast.com
5.45.59.207	A+PTR	hyp03-packet-responder-prod.prg.ff.avast.com
5.45.59.207	A	packet-responder.ns1.ff.avast.com
5.45.59.207	A	packet-responder.ff.avast.com
5.45.59.208	A+PTR	hyp05-cloudscanner-proxy.prg.ff.avast.com
5.45.59.210	A+PTR	hyp06-doubleclick-proxy-prod.prg.ff.avast.com
5.45.59.210	A	doubleclick-proxy.ns1.ff.avast.com
5.45.59.210	A	doubleclick-proxy.ff.avast.com
5.45.59.211	PTR	r-211-59-45-5.ff.avast.com
5.45.59.241	A+PTR	prg34-004.ff.avast.com
5.45.59.241	A	antitheft.ns1.ff.avast.com
5.45.59.241	A	deviceid.ns1.ff.avast.com
5.45.59.242	A+PTR	prg34-005.ff.avast.com
5.45.59.242	A	antitheft.ns1.ff.avast.com
5.45.59.243	PTR	puppetmaster-prod-004.prg5.ff.avast.com
5.45.59.243	A	antitheft.ns1.ff.avast.com
5.45.59.243	A	prg34-006.ff.avast.com
5.45.59.246	A+PTR	filerep-prod-010.prg5.ff.avast.com
5.45.59.246	A	prg34-009.ff.avast.com
5.45.59.246	A	filerep.ns1.ff.avast.com
5.45.59.247	A+PTR	prg34-010.ff.avast.com
5.45.59.247	A	filerep-prod-011.prg5.ff.avast.com
5.45.59.249	A+PTR	prg34-012.ff.avast.com
5.45.59.250	A+PTR	filerep-prod-014.prg5.ff.avast.com
5.45.59.250	A	prg34-013.ff.avast.com
5.45.59.251	A+PTR	filerep-prod-015.prg5.ff.avast.com
5.45.59.251	A	prg34-014.ff.avast.com
5.45.59.252	A+PTR	prg34-015.ff.avast.com
5.45.59.252	A	filerep.ns1.ff.avast.com
5.45.59.252	A	filerep-prod-016.prg5.ff.avast.com
5.45.59.253	A+PTR	prg34-016.ff.avast.com
5.45.59.253	A	filerepv3-test-001.prg5.ff.avast.com