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The Top 10 Worst

The World's Worst Spam Support ISPs

Spam continues to plague the internet because a small number of Internet Service Providers knowingly sell service to professional spammers for profit, or do not enough or nothing to prevent spammers operating from their networks.

The World's Worst Spam Support ISPs
As of 25 September 2017 the ISPs with the highest numbers of known ongoing spam problems are:
1
tencent.com Number of Current Known Spam Issues: 1348

2
anchnet.com Number of Current Known Spam Issues: 233

3
zzidc.com Number of Current Known Spam Issues: 160

4
pangintl.com Number of Current Known Spam Issues: 141

5
aruba.it Number of Current Known Spam Issues: 137

6
chinanet-sn Number of Current Known Spam Issues: 132

7
htu.cc Number of Current Known Spam Issues: 122

8
huawei.com Number of Current Known Spam Issues: 111

9
cnisp.org.cn Number of Current Known Spam Issues: 106

10
google.com Number of Current Known Spam Issues: 92



Source: Spamhaus Blocklist (SBL) database. Data is compiled automatically every 24 hours from the SBL database and sorted by the number of currently listed SBL records for each network (ISP/NSP). The source data, including record information on each spam issue listed can be viewed by clicking on the Number of Known Spam Issues links.
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