Top Attacking ISPs and ASNs

Ranking of Internet providers and ASNs with highest number of malicious IPs and detected attacks.

#	ISP/ASN	Country	IPs	Attacks	%
1	Alsycon B.V.	🇳🇱	5	5,094,033	81.9%
2	Unmanaged Ltd	🇷🇴	6	317,208	5.1%
3	GOOGLE-CLOUD-PLATFORM	🇺🇸	282	70,193	1.1%
4	HURRICANE	🇺🇸	75	66,914	1.1%
5	Tamatiya EOOD	🇧🇬	1	52,854	0.9%
6	Pfcloud UG (haftungsbeschrankt)	🇳🇱	6	45,326	0.7%
7	Akamai Connected Cloud	🇺🇸	37	43,160	0.7%
8	Amazon.com, Inc.	🇺🇸	5	43,031	0.7%
9	OVH SAS	🇸🇬	10	40,152	0.6%
10	ONYPHE SAS	🇺🇸	162	39,856	0.6%
11	RETHEMHOSTING	🇺🇸	59	39,444	0.6%
12	CENSYS-ARIN-01	🇺🇸	84	36,559	0.6%
13	Railnet LLC	🇺🇸	3	32,745	0.5%
14	AMAZON-02	🇺🇸	7	32,398	0.5%
15	Unknown		9	27,752	0.4%
16	IP Volume inc	🇺🇸	8	26,240	0.4%
17	Vpsvault.host Ltd	🇺🇸	2	24,748	0.4%
18	NewVM B.V.	🇳🇱	3	23,967	0.4%
19	Hangzhou Alibaba Advertising Co.,Ltd.	🇨🇳	12	23,542	0.4%
20	CENSYS-ARIN-02	🇺🇸	12	13,359	0.2%
21	Optibounce, LLC	🇳🇱	1	12,799	0.2%
22	UCLOUD INFORMATION TECHNOLOGY HK LIMITED	🇭🇰	38	10,853	0.2%
23	Inside Network LTD	🇩🇪	1	10,542	0.2%
24	CARINET	🇺🇸	10	6,403	0.1%
25	PebbleHost Ltd	🇬🇧	3	6,201	0.1%
26	Detai Prosperous Technologies Limited	🇩🇪	3	5,873	0.1%
27	CENSYS-ARIN-03	🇺🇸	37	5,796	0.1%
28	LEASEWEB SINGAPORE PTE. LTD.	🇸🇬	4	5,666	0.1%
29	FOP Dmytro Nedilskyi	🇺🇦	1	5,360	0.1%
30	Censys, Inc.	🇺🇸	38	4,805	0.1%
31	Orange	🇫🇷	2	4,597	0.1%
32	Amarutu Technology Ltd	🇳🇱	3	3,977	0.1%
33	JSC Buduschee	🇷🇺	2	3,526	0.1%
34	DigitalOcean, LLC	🇩🇪	16	3,485	0.1%
35	Sino Worldwide Trading Limited	🇳🇱	1	3,400	0.1%
36	SS-Net	🇷🇴	1	3,116	0.1%
37	AGOTOZ PTE. LTD.	🇭🇰	10	2,949	0.0%
38	DIGITALOCEAN-ASN	🇸🇬	3	2,787	0.0%
39	Bunea TELECOM SRL	🇷🇴	1	2,280	0.0%
40	VT-255-50219	🇺🇸	3	2,185	0.0%
41	SINGLEHOP-LLC	🇺🇸	2	1,884	0.0%
42	Black HOST Ltd	🇳🇱	3	1,858	0.0%
43	globacom-as	🇳🇬	1	1,777	0.0%
44	TCA SERVICES C.A.	🇻🇪	1	1,361	0.0%
45	Sistemas Informaticos, S.A.	🇵🇹	7	1,344	0.0%
46	netcup GmbH	🇦🇹	1	1,212	0.0%
47	Chinanet	🇨🇳	2	1,135	0.0%
48	Techoff Srv Limited	🇧🇬	1	984	0.0%
49	ZEN-ECN	🇵🇹	5	803	0.0%
50	GLFIBRA SERVICOS DE TELECOMUNICACOES LTDA	🇧🇷	1	767	0.0%
51	CDSC-AS1	🇺🇸	2	648	0.0%
52	GMO-Z com NetDesign Holdings Co., Ltd.	🇹🇭	1	637	0.0%
53	MICROSOFT-CORP-MSN-AS-BLOCK	🇳🇱	1	479	0.0%
54	Flyservers S.A.	🇵🇦	1	406	0.0%
55	China Telecom Group	🇨🇳	1	403	0.0%
56	Petersburg Internet Network ltd.	🇷🇺	1	338	0.0%
57	China Unicom Beijing Province Network	🇨🇳	1	279	0.0%
58	UFINET PANAMA S.A.	🇪🇨	1	188	0.0%
59	ReliableSite.Net LLC	🇺🇸	1	173	0.0%

ISPs/ASNs

1000

Unique IPs

6,216,757

Total Attacks

What is an ASN?

An ASN (Autonomous System Number) is a unique identifier assigned to Internet networks. Each ISP and organization with Internet presence has one or more ASNs. Some ASNs have higher concentration of malicious activity due to lax abuse policies.