Autonomous Systems Emissions Index (AEI index)

Networks ranked by how much they probe our honeypots relative to the IPv4 space they announce, so a small busy network outranks a large quiet one. Refreshed hourly.

How the ranking works

The headline figure is the Autonomous Systems Emissions Index (AEI index): probes per 1,000 announced addresses over the last 7 days. Several networks near the top run internet-wide scans for research and security and carry a scanner tag, so you can read their position with that in mind.

Window7 days 30 days 90 daysScannersShow Hide

#	7d	Network	AEI ▾	Probes	IPs	Announced	Probes / IP	IPs / 1k
1	–	AS209334 Modat B.V.scanner 🇨🇦 27143 33074 62351 16379	178.6K	137.2K	88	768	1.6K	114.6
2	–	AS398705 Censys, Inc.scanner 🇺🇸 9090 4839 4841 44818	81.0K	41.5K	16	512	2.6K	31.2
3	–	AS213412 ONYPHE SASscanner 🇫🇷 554 5985 9401 6443	29.4K	37.6K	896	1.3K	42	700.0
4	▲ 4	AS219502 Storm Industries LLC 🇳🇱 23 22 8080 81	25.6K	6.6K	35	256	187	136.7
5	▼ 1	AS398722 Censys, Inc.scanner 🇺🇸 9090 1963 1962 18789	20.4K	10.5K	96	512	109	187.5
6	▲ 1	AS398324 Censys, Inc.scanner 🇺🇸 4841 9090 1962 1963	16.4K	62.9K	272	3.8K	231	70.8
7	▼ 1	AS215925 Vpsvault.host Ltd 🇺🇸 8728 8088 8080 80	15.4K	19.7K	29	1.3K	678	22.7
8	▼ 3	AS14987 Rethem Hosting LLC 🇺🇸 500 8580 1259 2821	14.4K	14.8K	114	1.0K	130	111.3
9	–	AS48090 Techoff Srv Limited 🇳🇱 80 22 8080 443	13.3K	10.3K	12	768	854	15.6
10	–	AS211486 Alferov Aleksey Aleksandrovich 🇧🇬 1911 36443 4443 45443	10.2K	7.9K	13	768	604	16.9
11	▼ 1	AS9465 AGOTOZ PTE. LTD. 🇭🇰 9200 5601 587 20201	7.3K	1.9K	52	256	36	203.1
12	▼ 1	AS213790 Limited Network LTD 🇮🇷 1000 8545 8332 22	5.6K	7.2K	42	1.3K	170	32.8
13	▲ 3	AS212512 Detai Prosperous Technologies Limited 🇩🇪 873 44443 11300 636	1.8K	2.7K	10	1.5K	271	6.5
14	▲ 5	AS202425 IP Volume inc 🇳🇱 2715 7777 5412 6501	1.7K	26.2K	48	15.1K	546	3.2
15	▼ 3	AS35042 Layer7 Networks GmbH 🇩🇪 276 209 778 802	1.5K	4.6K	12	3.1K	380	3.9
16	▼ 1	AS211680 Sistemas Informaticos, S.A. 🇵🇹 80 53 443 8080	1.4K	1.8K	171	1.3K	10	133.6
17	▼ 3	AS197170 TechTies Inc. 🇳🇱 2222 22 10001 1001	1.3K	4.5K	71	3.3K	63	21.3
18	–	AS201814 MEVSPACE sp. z o.o. 🇧🇬 7443 10443 8443 9443	1.1K	23.2K	11	20.7K	2.1K	0.5
19	▼ 6	AS49870 Alsycon B.V. 🇸🇨 8000 3005 3007 3003	1.1K	9.7K	11	9.0K	878	1.2
20	–	AS202412 Omegatech LTD 🇳🇱 465 5555 23 1723	567	2.9K	24	5.1K	121	4.7
21	▼ 4	AS51396 Pfcloud UG (haftungsbeschrankt) 🇳🇱 25565 3128 8080 8888	313	2.3K	37	7.4K	63	5.0
22	–	AS47890 Unmanaged Ltd 🇷🇴 22 6379 443 9200	289	2.7K	11	9.2K	242	1.2
23	–	AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED 🇭🇰 8188 6443 5985 7687	170	32.9K	687	192.8K	48	3.6
24	–	AS265691 WI-NET TELECOM S.A.C. 🇵🇪 39131 1433 445	118	6.2K	17	53.0K	367	0.3
25	▲ 20	AS14593 Space Exploration Technologies Corporation 🇨🇴 53 39131 1433 5985	67	56.3K	20	843.3K	2.8K	0.0
26	▼ 1	AS17072 TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE 🇲🇽 39131 11434 53	59	4.8K	24	80.9K	198	0.3
27	▼ 1	AS6939 Hurricane Electric LLC 🇺🇸 9090 8080 9060 11453	56	25.4K	909	456.7K	28	2.0
28	▲ 2	AS57269 Digi Spain Telecom S.A 🇪🇸 39131	39	10.9K	17	281.1K	644	0.1
29	–	AS24309 Atria Convergence Technologies Pvt. Ltd. B 🇮🇳 1433 135 445 5985	29	5.7K	13	193.5K	439	0.1
30	▼ 3	AS27882 Telefonica Celular de Bolivia S.A. 🇧🇴 39131 445	27	2.3K	11	83.5K	209	0.1
31	–	AS14061 DigitalOcean, LLC 🇺🇸 10000 10086 60000 1000	21	67.0K	1.7K	3.1M	40	0.5
32	▲ 2	AS63949 Akamai Connected Cloud 🇺🇸 62078 4369 3600 9997	17	22.6K	421	1.3M	54	0.3
33	▼ 1	AS10439 CariNet, Inc. 🇺🇸 80 6379 443 445	17	1.8K	36	106.8K	51	0.3
34	–	AS27887 WIND Telecom S.A. 🇩🇴 39131	17	1.1K	11	67.6K	103	0.2
35	▲ 6	AS52468 UFINET PANAMA S.A. 🇨🇴 39131 445 17000 6036	16	3.7K	29	229.6K	126	0.1
36	–	AS25369 Hydra Communications Ltd 🇬🇧 24107 61689 26246 60055	16	1.9K	902	119.0K	2	7.6
37	–	AS32475 Internap Holding LLC 🇺🇸 10 1234 16 7	15	5.2K	10	343.0K	519	0.0
38	▼ 1	AS27747 Telecentro S.A. 🇦🇷 39131 445	10	6.5K	22	623.6K	297	0.0
39	▼ 4	AS396982 Google LLC 🇺🇸 3389 21 990 110	10	204.9K	2.8K	20.0M	73	0.1
40	▼ 4	AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOC 🇧🇴 39131 445 17001	8	1.9K	18	228.4K	103	0.1
41	–	AS12876 Scaleway SAS 🇫🇷 80 8000 8888 25565	5	2.6K	53	504.1K	48	0.1
42	▼ 4	AS12252 America Movil Peru S.A.C. 🇵🇪 39131 445	5	3.2K	20	671.7K	160	0.0
43	▼ 4	AS27947 Telconet S.A 🇪🇨 39131 445 22 9898	4	2.1K	27	535.3K	79	0.1
44	–	AS22884 TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE 🇲🇽 39131 445 5985	4	1.1K	15	286.2K	72	0.1
45	▼ 5	AS11664 Techtel LMDS Comunicaciones Interactivas S 🇦🇷 39131 1433 9091 8088	3	4.0K	23	1.1M	172	0.0
46	▲ 1	AS13999 Mega Cable, S.A. de C.V. 🇲🇽 39131 445 17001 443	3	6.9K	18	2.0M	384	0.0
47	▲ 1	AS22927 Telefonica de Argentina 🇦🇷 39131 445	3	12.2K	31	4.2M	394	0.0
48	▼ 6	AS21859 Zenlayer Inc 🇵🇹 53 443 8443 3389	3	2.1K	154	722.4K	14	0.2
49	–	AS51167 Contabo GmbH 🇬🇧 3389 443 1000 80	3	1.5K	46	542.7K	33	0.1
50	▼ 4	AS45102 Alibaba (US) Technology Co., Ltd. 🇺🇸 443 1000 8888 18789	2	12.9K	2.3K	5.5M	6	0.4
51	–	AS137718 Beijing Volcano Engine Technology Co., Ltd 🇨🇳 22 80 443 1000	2	1.4K	22	630.3K	66	0.0
52	▼ 9	AS10620 Telmex Colombia S.A. 🇨🇴 39131 22	2	4.1K	16	1.8M	258	0.0
53	–	AS58461 CT-HangZhou-IDC 🇨🇳 1433 80 5060 9443	2	1.1K	10	500.0K	112	0.0
54	▼ 10	AS6400 Compania Dominicana de Telefonos S. A. 🇩🇴 39131 445 8080 5985	2	1.8K	16	844.0K	115	0.0
55	▼ 22	AS8560 IONOS SE 🇬🇧 3389 1000 1433 5060	2	1.6K	16	771.6K	103	0.0
56	▼ 6	AS7303 Telecom Argentina S.A. 🇦🇷 39131 445 10089 22	2	15.1K	33	8.4M	457	0.0
57	new	AS6739 Vodafone Ono, S.A. 🇪🇸 39131 1096 1234	2	3.0K	11	1.8M	276	0.0
58	▼ 7	AS6147 INTEGRATEL PERU S.A.A. 🇵🇪 39131 591	2	2.3K	19	1.5M	123	0.0
59	▼ 10	AS15704 Xtra Telecom S.A. 🇪🇸 39131 37777 1024	1	1.2K	13	848.6K	94	0.0
60	▼ 1	AS16276 OVH SAS 🇺🇸 554 264 1000 80	1	5.8K	76	4.6M	77	0.0
61	▼ 9	AS12479 Orange Espagne SA 🇪🇸 39131 1000 28188	1	8.3K	29	7.0M	287	0.0
62	▼ 9	AS7418 TELEFONICA CHILE S.A. 🇨🇱 39131	1	2.6K	38	2.4M	69	0.0
63	▼ 9	AS9009 M247 Europe SRL 🇩🇰 554 465 5601 3389	1	1.6K	26	1.6M	63	0.0
64	new	AS23969 TOT Public Company Limited 🇹🇭 135 445 6036 17000	1	1.1K	140	1.3M	8	0.1
65	▼ 9	AS3352 Telefonica De Espana S.a.u. 🇪🇸 39131 445	1	7.6K	19	10.6M	398	0.0
66	▼ 4	AS8151 UNINET 🇲🇽 445 39131 1433 5985	1	9.3K	93	13.4M	100	0.0
67	▼ 9	AS7713 PT Telekomunikasi Indonesia 🇮🇩 445 135 1433 1000	1	2.9K	119	4.3M	24	0.0
68	new	AS12430 Vodafone Spain 🇪🇸 39131 445 22	1	2.4K	11	4.5M	218	0.0
69	–	AS132203 Tencent Building, Kejizhongyi Avenue 🇸🇬 80 443 1000 135	1	1.1K	267	2.1M	4	0.1
70	▼ 15	AS6057 Administracion Nacional de Telecomunicacio 🇺🇾 39131 1433	0	1.1K	22	2.2M	49	0.0
71	▼ 4	AS12389 Rostelecom 🇷🇺 37777 445 8080 3128	0	4.6K	85	9.6M	54	0.0
72	–	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 🇨🇴 39131 1433 445	0	1.4K	25	3.1M	56	0.0
73	▼ 2	AS174 Cogent Communications, LLC 🇺🇸 8095 1001 8062 5051	0	11.8K	17	36.2M	695	0.0
74	–	AS13489 UNE EPM TELECOMUNICACIONES S.A. 🇨🇴 39131 445 1433 17000	0	1.0K	19	4.2M	53	0.0
75	▼ 12	AS45899 VNPT Corp 🇻🇳 445 135 139 1433	0	1.6K	93	7.7M	17	0.0
76	▼ 12	AS8075 Microsoft Corporation 🇺🇸 22 80 443 9200	0	11.7K	2.2K	81.1M	5	0.0
77	▼ 12	AS16509 Amazon.com, Inc. 🇺🇸 3389 443 22227 55555	0	20.9K	56	170.1M	372	0.0
78	▼ 10	AS14618 Amazon.com, Inc. 🇺🇸 443 80 8443 9200	0	2.2K	644	21.2M	3	0.0
79	▼ 13	AS4134 Chinanet 🇨🇳 445 1433 21 22	0	11.6K	1.3K	110.7M	9	0.0
80	–	AS4766 Korea Telecom 🇰🇷 1433 22 1000 3389	0	4.3K	102	47.2M	42	0.0
81	new	AS26599 TELEFONICA BRASIL S.A 🇧🇷 39131 3306 445 8000	0	1.0K	13	11.7M	79	0.0
82	▼ 13	AS4837 CHINA UNICOM China169 Backbone 🇨🇳 1433 80 6379 1000	0	2.6K	1.5K	57.7M	2	0.0
83	▼ 13	AS9808 China Mobile Communications Group Co., Ltd 🇨🇳 22 80 443 1433	0	1.3K	88	37.0M	15	0.0

A network reaches the ranking once it sends at least 1000 probes from at least 10 distinct addresses and announces at least 256 addresses. The announced figure comes from the global BGP table, and AS0 is left out because it is not a real network.

Networks that run internet-wide scans for research and security carry a scanner tag. They reach the top because they cover a lot of ground from a small address footprint, which is expected behaviour rather than a sign of abuse, so you can hide them with the toggle above when you want to look at everything else.

The up and down arrows track each network's change in rank over the past 7 days, so a single busy hour doesn't bounce the whole table. They begin to fill in once the snapshots have built up a week of history.