Spam Activity in Hosting Networks (ASNs) December 1,2023 - February 29,2024

To see where spammed content or spambots were being hosted, we collected the IP addresses that spam domains were resolving to when spam activity was detected and added to a threat or block list. We then identified the ASN where the IP prefix containing the IP address was allocated. This number identifies the hosting network where spammed content or a spambot was reported.

In the table below, we show the twenty hosting networks with the highest numbers of reports of spammed content or spambots. Complete lists of ASNs reported for the period can be downloaded in CSV format from the Records page.

Ranking of Hosting Networks (ASNs) by Hosted Spammed Content or Spambots (December to February 2024)

Rank AS Name AS number # Routed
IPv4 Addresses		 # of Spammed Content
or Spambot Hosts ▼		 Spam Score
1 Google LLC 15169 11,300,608 427,087 377.93
2 GIR-AS 207713 35,585 215,170 60466.49
3 Clayer Limited 137951 778,752 70,408 904.11
4 Cloudflare, Inc. 13335 2,572,544 60,668 235.83
5 BGP Consultancy Pte Ltd 64050 1,114,368 40,008 359.02
6 Amazon.com, Inc. 16509 46,380,288 29,480 6.36
7 Microsoft Corporation 8075 53,432,320 24,418 4.57
8 OVH SAS 16276 4,360,704 18,984 43.53
9 Dimension Network & Communication Limited 59371 53,760 14,643 2723.77
10 Amazon.com, Inc. 14618 17,047,296 9,259 5.43
11 SEDO GmbH 47846 1,280 8,987 70210.94
12 Shenzhen Tencent Computer Systems Company Limited 132203 2,628,864 8,741 33.25
13 Eonix Corporation 62904 950,784 8,273 87.01
14 Unified Layer 46606 810,496 7,301 90.08
15 Google LLC 396982 35,102,208 6,850 1.95
16 PROSPERO llc 200593 512 6,434 125664.06
17 CNSERVERS LLC 40065 1,409,280 6,180 43.85
18 Sun Network (Hong Kong) Limited 136800 1,581,568 5,820 36.80
19 QuadraNet Enterprises LLC 64270 19,968 5,279 2643.73
20 DigitalOcean, LLC 14061 2,912,768 5,090 17.47

To allow comparison of large and small Hosting Networks (ASNs), we also rank Hosting Networks based on a metric, hosting network spam score, which is calculated by dividing the number of spammed content or spambot hosts reported against an ASN by the number of routable IPv4 addresses allocated to that ASN.

Hosting (ASN) Spam Score = (number of spammed content or spambot hosts /IP Addresses in ASN) * 10,000

In the table below, we show the top 20 hosting operators based on spam score.

Ranking of Hosting Networks (ASNs) by Spam Attack Score (December to February 2024)

Hosting Networks (ASNs) with a minimum of 50,000 IPv4 addresses and 25 spam attacks

Rank AS Name AS number # Routed IPv4
Addresses		 # of Spammed Content
or Spambot Hosts		 Spam Score ▼
1 Dimension Network & Communication Limited 59371 53,760 14,643 2723.77
2 Clayer Limited 137951 778,752 70,408 904.11
3 Namecheap, Inc. 22612 95,424 3,769 394.97
4 Google LLC 15169 11,300,608 427,087 377.93
5 BGP Consultancy Pte Ltd 64050 1,114,368 40,008 359.02
6 Hong Kong Communications International Co., Limited 140227 59,392 1,765 297.18
7 Forewin Telecom Group Limited 38186 68,352 2,031 297.14
8 BEKKOAME INTERNET INC. 4686 157,696 4,460 282.82
9 PDR 394695 77,568 2,080 268.15
10 Beijing Baidu Netcom Science and Technology Co., Ltd. 55967 68,352 1,716 251.05
11 Cloudflare, Inc. 13335 2,572,544 60,668 235.83
12 Dream Wave Shizuoka Co. Ltd. 18068 51,456 1,071 208.14
13 Equinix Japan Enterprise K.K. 17941 152,832 3,158 206.63
14 Network Solutions, LLC 19871 267,520 5,055 188.96
15 SonderCloud Limited 133199 65,024 1,210 186.09
16 Cloudie Limited 55933 161,280 2,959 183.47
17 FranTech Solutions 53667 59,648 925 155.08
18 WholeSale Internet, Inc. 32097 243,200 3,715 152.75
19 Cloudflare London, LLC 209242 111,616 1,641 147.02
20 Sharktech 46844 109,056 1,366 125.26

Quarterly Update:
Key Statistics		 Quarterly Update:
Top Level Domains		 Quarterly Update:
Registrars		 Quarterly Update:
Hosting Networks
Quarter over Quarter:
Hosting Networks