The Spamhaus Project
  Blocklist Removal Center
About Spamhaus  |  FAQs  |  News Blog   
The Top 10 Worst

The World's Worst Botnet ISPs

ISPs in this chart have the highest number of detected spam-bots as listed in the Spamhaus XBL zone. Most bots can be used for spam, phishing, click-fraud, DDoS and other malicious activities.

Many issues may relate to a country's bot density including technical, policy and socioeconomic factors.

Additional and more detailed statistics can be found at the Spamhaus CBL website:

CBL breakdown by Domain

CBL breakdown by Domain Traffic

CBL breakdown by Domain Infections

Source: Spamhaus (XBL) database. Data is compiled automatically every 24 hours from the XBL database using the number of currently listed bots for each network (ISP/NSP).
The 10 Worst Botnet ISPs
As of 01 April 2020 the world's worst botnet infected ISPs are:
1 Number of Bots: 982088

2 Number of Bots: 901882

3 Number of Bots: 888000

4 Number of Bots: 862810

5 Number of Bots: 409520

6 Number of Bots: 333705

7 Number of Bots: 295438

8 Number of Bots: 261521

9 Number of Bots: 226059

10 Number of Bots: 198002

© 1998-2020 The Spamhaus Project SLU. All rights reserved.
Legal  |  Privacy