OSN

Blocklists

Blocklisted networks and addresses

As of 2026-10-10, current public blocklists hold 78 191 entries in public address space, covering 15 012 005 addresses.

Public blocklists name addresses and networks that attacked others, served malware, ran botnet servers, or are hijacked. An entry is not proof of wrongdoing, and lists change by the hour. Private, reserved and unallocated space is left out.

Summary

78 191list entries
15 012 005addresses covered

Counted 2026-10-10 04:26 UTC

By category

CategoryNetworks / addresses listedAddresses covered
aggregated attack lists31 531100%1 345 248
attack source23 74775%23 747
scanning, poor reputation15 48649%20 586
botnet command and control2 4267%2 426
hijacked or criminal network1 7745%14 901 083
malware distribution1 4974%1 497

By list

ListNetworks / addresses listedAddresses covered
reported attack sources (48 h)23 589100%23 589
aggregated attack lists (level 2)19 17081%35 097
addresses with poor reputation on a sensor network15 00063%15 000
aggregated attack lists (level 3)12 08551%33 706
malware command-and-control endpoints2 42510%2 425
hijacked or criminal-operated networks (do-not-route list)1 7747%14 901 083
hosts serving malware downloads1 4936%1 493
aggregated attack lists (level 1)8103%1 291 777
top attacking addresses5002%500
persistent attack sources (> 2 months)3811%381
top attacking /24 networks (3 days)201%5 120
botnet command-and-control servers51%5

Networks with the most listed entries

NetworkNetworks / addresses listedAddresses covered
Google LLC AS3969823 717100%6 059
Hydra Communications Ltd AS253693 47693%6 513
Alibaba (US) Technology Co., Ltd. AS451022 86577%2 891
Microsoft Corporation AS80752 44365%3 017
JSC "ER-Telecom Holding" AS570262 05055%4 097
Leaseweb USA, Inc. AS3961902 04955%4 096
OVH SAS AS162761 97453%2 426
DigitalOcean, LLC AS140611 82148%1 822
No.31,Jin-rong Street AS413499626%4 331
CHINA UNICOM China169 Backbone AS483793425%944
Korea Telecom AS476693025%1 190
Akamai Connected Cloud AS6394985022%1 206
Cisco Webex LLC AS1344577120%1 536
Leaseweb USA, Inc. AS39438077120%2 560
Cox Communications Inc. AS2277369918%731
UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED AS13537766517%8 860
Amazon.com, Inc. AS1461857315%835
Petersburg Internet Network ltd. AS3466551813%1 284
Beamspeed LLC AS1423751413%1 024
Hangzhou Alibaba Advertising Co.,Ltd. AS3796348112%481
Amazon.com, Inc. AS1650945012%25 130
Hurricane Electric LLC AS693937810%2 472
F.N.S. HOLDINGS LIMITED AS2060923549%432
Bharti Airtel Ltd., Telemedia Services AS245603389%338
Reliance Jio Infocomm Limited AS558363268%326
TechTies Inc. AS1971703208%3 639
Shenzhen Tencent Computer Systems Company Limited AS450903088%308
Zenlayer Inc AS218593028%5 211
Censys, Inc. AS3983242867%1 321
ONYPHE SAS AS2134122837%1 319
Megasurf Wireless Internet CC AS3279912727%273
"Kyivstar" PJSC AS158952596%514
4830.org e. V. AS2068132576%512
Contabo GmbH AS511672496%250
Oracle Corporation AS318982356%235
Claro NXT Telecomunicacoes Ltda AS285732225%222
Datacamp Limited AS2122382055%1 993
China Mobile Communications Group Co., Ltd. AS98082005%202
M247 Europe SRL AS90091915%34 746
BHARTI Airtel Ltd. AS94981905%193
Tencent Building, Kejizhongyi Avenue AS1322031814%181
Sistemas Informaticos, S.A. AS2116801744%689
Beijing Baidu Netcom Science and Technology Co., Ltd. AS383651734%173
BANATSYNC SRL AS1983641724%767
National Internet Backbone AS98291664%166
MASTER S/A AS282021584%160
Clouvider Limited AS622401564%178
Cyber Internet Services (Pvt) Ltd. AS95411534%155
Byteplus Pte. Ltd. AS1504361514%152
China Telecom (Group) AS48111494%155

Countries (where the networks are registered)

CountryNetworks / addresses listedAddresses covered
China CN4 675100%5 440 275
Australia AU3 53675%1 292 469
United Kingdom GB3 38572%685 540
Russia RU3 25669%86 415
India IN2 27248%84 701
Germany DE2 12945%236 600
United States US2 12845%74 443
Brazil BR2 00642%6 870
Netherlands NL1 57533%90 985
South Korea KR1 16724%156 043
Singapore SG1 16124%24 742
Indonesia ID1 03922%27 656
France FR86118%137 845
Hong Kong HK74015%123 554
Ukraine UA62913%8 291
Pakistan PK52111%1 049
Vietnam VN49810%92 915
South Africa ZA4469%880 042
Italy IT3938%86 149
EU3497%2 137
Mexico MX3297%105 277
Argentina AR3196%831
Bangladesh BD3136%2 895
Philippines PH2946%2 084
Japan JP2826%961 741
Poland PL2675%2 054
Taiwan TW2515%11 264
Sweden SE2495%66 295
Türkiye TR2164%2 273
Malaysia MY2104%76 219
Spain ES1994%6 074
Thailand TH1894%141 754
Colombia CO1753%181
United Arab Emirates AE1593%1 692
Bulgaria BG1423%2 950
Canada CA1382%3 219
Iran IR1292%11 128
Egypt EG1112%111
Finland FI1102%1 271
Ghana GH1012%101
Iraq IQ982%98
Nigeria NG921%100 689
Chile CL911%131 416
Seychelles SC871%403 770
Andorra AD821%1 105
Israel IL811%84
Romania RO791%6 719
Kenya KE681%68
Lithuania LT671%5 430
Kazakhstan KZ661%832

Examples

A few current entries per category; each address page says which lists name it and since when.

EntryCategoryNetwork
2001:678:6c0::/48hijacked or criminal networkKP "CLUB NADIYA" AS202388
2001:678:6c4::/48hijacked or criminal networkEL.K.STIL LLC AS202383
2001:678:254::/48hijacked or criminal networkSTAT CONSULTING LTD AS201824
2001:678:11b8::/48hijacked or criminal networkSTART BUILDING LTD AS200671
1.92.101.221malware distributionHuawei Cloud Service data center AS55990
1.92.136.152malware distributionHuawei Cloud Service data center AS55990
1.94.221.183malware distributionHuawei Cloud Service data center AS55990
1.12.229.231aggregated attack listsShenzhen Tencent Computer Systems Company Limited AS45090
1.12.48.131aggregated attack listsShenzhen Tencent Computer Systems Company Limited AS45090
1.12.55.42aggregated attack listsShenzhen Tencent Computer Systems Company Limited AS45090
1.117.72.220attack sourceShenzhen Tencent Computer Systems Company Limited AS45090
1.14.192.95attack sourceShenzhen Tencent Computer Systems Company Limited AS45090
1.14.240.247attack sourceShenzhen Tencent Computer Systems Company Limited AS45090
1.117.73.61botnet command and controlShenzhen Tencent Computer Systems Company Limited AS45090
1.12.253.219botnet command and controlShenzhen Tencent Computer Systems Company Limited AS45090
1.14.104.208botnet command and controlShenzhen Tencent Computer Systems Company Limited AS45090
1.14.234.68botnet command and controlShenzhen Tencent Computer Systems Company Limited AS45090
1.14.76.111botnet command and controlShenzhen Tencent Computer Systems Company Limited AS45090
1.12.229.231scanning, poor reputationShenzhen Tencent Computer Systems Company Limited AS45090
1.0.164.165aggregated attack listsTOT Public Company Limited AS23969
1.10.206.21aggregated attack listsTOT Public Company Limited AS23969
1.0.164.165attack sourceTOT Public Company Limited AS23969
1.0.243.191attack sourceTOT Public Company Limited AS23969
1.0.215.19scanning, poor reputationTOT Public Company Limited AS23969
1.57.109.163malware distributionCHINA UNICOM China169 Backbone AS4837
1.62.112.38malware distributionCHINA UNICOM China169 Backbone AS4837
1.24.16.101scanning, poor reputationCHINA UNICOM China169 Backbone AS4837
1.24.16.106scanning, poor reputationCHINA UNICOM China169 Backbone AS4837
1.192.129.106scanning, poor reputationNo.31,Jin-rong Street AS4134
2001:43f8:a21::/48hijacked or criminal network—

Tag: blocklisted · Tag: botnet C2 · Reserved ranges