Spam Activity in Hosting Networks (ASNs)
September 1,2022 - November 30,2022

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 (September to November 2022)

Rank AS Name AS number # Routed
IPv4 Addresses		 # of Spammed Content
or Spambot Hosts ▼		 Spam Score
1 CLOUDFLARENET 13335 2,464,000 57,010 231.37
2 AMAZON-02 16509 44,145,152 18,146 4.11
3 OVH - OVH SAS 16276 4,144,384 16,552 39.94
4 IS-AS-1 19318 127,232 13,062 1026.63
5 GOOGLE 15169 15,362,816 11,730 7.64
6 AS62904 62904 611,072 11,345 185.66
7 CLAYERLIMITED-AS-AP Clayer Limited 137951 410,880 9,482 230.77
8 AMAZON-AES 14618 16,397,824 9,480 5.78
9 LAYER-HOST 46573 252,160 9,377 371.87
10 KDC-AS-AP CONA HOSTING SDN BHD 136209 12,800 8,609 6725.78
11 DIGITALOCEAN-ASN 14061 2,763,520 6,794 24.58
12 HETZNER-AS - Hetzner Online GmbH 24940 2,292,992 6,541 28.53
13 ROOT-NETWORKS - LoadEdge Limited 32708 52,992 6,450 1217.16
14 UNIFIEDLAYER-AS-1 46606 1,014,528 6,363 62.72
15 TYKHYI-AS - EURO LIR LLC 203973 1,024 6,074 59316.41
16 ASN-QUADRANET-GLOBAL 8100 682,496 5,978 87.59
17 NAMECHEAP-NET 22612 106,240 5,453 513.27
18 GOOGLE-CLOUD-PLATFORM 396982 24,194,560 5,107 2.11
19 AS-CHOOPA 20473 1,112,576 3,844 34.55
20 DXTL-HK DXTL Tseung Kwan O Service 134548 1,388,544 3,782 27.24

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 (September to November 2022)

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 ROOT-NETWORKS - LoadEdge Limited 32708 52,992 6,450 1217.16
2 IS-AS-1 19318 127,232 13,062 1026.63
3 NAMECHEAP-NET 22612 106,240 5,453 513.27
4 LAYER-HOST 46573 252,160 9,377 371.87
5 WII 32097 96,256 2,388 248.09
6 CLOUDFLARENET 13335 2,464,000 57,010 231.37
7 CLAYERLIMITED-AS-AP Clayer Limited 137951 410,880 9,482 230.77
8 ASBAXETN - LLC Baxet 49392 77,056 1,695 219.97
9 AS62904 62904 611,072 11,345 185.66
10 NOCIX 33387 58,624 886 151.13
11 BURSABIL - Bursabil Teknoloji A.S. 60721 80,128 1,201 149.89
12 AS-HOSTINGER - Hostinger International Limited 47583 144,384 1,724 119.40
13 WORLDSTREAM - WorldStream B.V. 49981 71,168 800 112.41
14 ABOVE-AS-AP AboveNet Communications Taiwan 17408 72,704 804 110.59
15 CONTABO 40021 71,936 762 105.93
16 GROUP-IID-01 398968 60,672 612 100.87
17 LIQUIDWEB 32244 255,488 2,239 87.64
18 ASN-QUADRANET-GLOBAL 8100 682,496 5,978 87.59
19 INTERQ GMO Internet 7506 263,424 2,298 87.24
20 SERVERS-COM 7979 308,480 2,672 86.62

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