Spam Activity in Hosting Networks (ASNs)
December 1,2022 - February 28,2023

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 2023)

Rank AS Name AS number # Routed
IPv4 Addresses		 # of Spammed Content
or Spambot Hosts ▼		 Spam Score
1 CLOUDFLARENET 13335 2,470,656 69,346 280.68
2 AMAZON-02 16509 44,713,472 25,001 5.59
3 XTOM - xTom GmbH 3214 29,440 12,559 4265.96
4 OVH - OVH SAS 16276 4,195,840 11,073 26.39
5 GOOGLE 15169 15,059,712 8,506 5.65
6 PACIFICRACK 64270 20,224 7,963 3937.40
7 AS62904 62904 614,656 6,704 109.07
8 AMAZON-AES 14618 16,436,480 6,529 3.97
9 MICROSOFT-CORP-MSN-AS-BLOCK 8075 53,060,608 6,512 1.23
10 HETZNER-AS - Hetzner Online GmbH 24940 2,357,760 6,321 26.81
11 DIGITALOCEAN-ASN 14061 2,813,696 5,377 19.11
12 UNIFIEDLAYER-AS-1 46606 804,864 5,367 66.68
13 GOOGLE-CLOUD-PLATFORM 396982 26,205,440 5,045 1.93
14 ROOT-NETWORKS - LoadEdge Limited 32708 55,040 5,039 915.52
15 CLAYERLIMITED-AS-AP Clayer Limited 137951 378,368 4,541 120.02
16 AS_DELIS - Delis LLC 211252 25,344 4,526 1785.83
17 IS-AS-1 19318 127,488 4,521 354.62
18 ASN-QUADRANET-GLOBAL 8100 645,888 4,459 69.04
19 DXTL-HK DXTL Tseung Kwan O Service 134548 1,393,152 4,180 30.00
20 AS-CHOOPA 20473 1,147,392 4,149 36.16

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 2023)

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 55,040 5,039 915.52
2 IS-AS-1 19318 127,488 4,521 354.62
3 NAMECHEAP-NET 22612 108,288 3,493 322.57
4 CLOUDFLARENET 13335 2,470,656 69,346 280.68
5 SGPL-AS-AP STARCLOUD GLOBAL PTE. 140224 211,712 3,774 178.26
6 ASBAXETN - LLC Baxet 49392 61,696 971 157.38
7 LAYER-HOST 46573 250,112 3,651 145.97
8 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED 135377 145,664 2,126 145.95
9 PEGTECHINC-AP-02 398823 196,864 2,426 123.23
10 CLAYERLIMITED-AS-AP Clayer Limited 137951 378,368 4,541 120.02
11 AS-HOSTINGER - Hostinger International Limited 47583 156,416 1,854 118.53
12 PONYNET 53667 62,720 722 115.11
13 BURSABIL - Bursabil Teknoloji A.S. 60721 73,984 849 114.75
14 AS62904 62904 614,656 6,704 109.07
15 WII 32097 98,048 1,044 106.48
16 NOCIX 33387 59,392 628 105.74
17 BIT-ISLE Equinix Japan Enterprise K.K. 17941 158,720 1,295 81.59
18 BEKKOAME BEKKOAME INTERNET INC. 4686 158,720 1,160 73.08
19 ENZUINC- 18978 76,032 525 69.05
20 ASN-QUADRANET-GLOBAL 8100 645,888 4,459 69.04

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