Autonomous Systems Emissions 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.

How the ranking works

The headline figure, shortened to AEI in the table and the chart, is 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

5 recognised scanner networks hidden. Numbers stay at their position in the full index, so gaps are the scanners you filtered out.

Top ten by AEI, numbered 64 other ranked networks Declared scanner

Both axes multiply into the AEI, so the dotted diagonals are lines of equal rank and the index reads as distance up and to the right. The corners separate how a network probes: the top ten announce 37.4K addresses between them and sent 159.8K probes.

#	7d	Network	AEI ▾	Probes	IPs	Announced	Probes / IP	IPs / 1k
2	▼ 1	AS208137 Feo Prest SRL 🇩🇪 82 4433 8001 88	44.3K	22.7K	11	512	2.1K	21.5
4	▼ 1	AS48090 Techoff Srv Limited 🇧🇬 22 443 80 1723	19.3K	14.8K	19	768	781	24.7
6	–	AS14987 Rethem Hosting LLC 🇺🇸 30067 31632 3472 8237	9.4K	9.6K	114	1.0K	84	111.3
7	▲ 5	AS199457 SolidCore Hosting LTD 🇭🇰 1433 80 443 2222	7.9K	8.1K	22	1.0K	370	21.5
8	–	AS9465 AGOTOZ PTE. LTD. 🇭🇰 5601 5432 9200 9100	7.9K	2.0K	53	256	38	207.0
9	▲ 2	AS213790 Limited Network LTD 🇩🇪 1433 443 4444 2222	7.2K	7.4K	14	1.0K	525	13.7
10	▲ 10	AS212512 Detai Prosperous Technologies Limited 🇩🇪 389 5200 56738 7778	4.9K	1.2K	12	256	104	46.9
11	▲ 8	AS197170 TechTies Inc. 🇳🇱 5432 5433 5434 5435	4.4K	13.6K	34	3.1K	400	11.1
13	▲ 7	AS219326 SULAVI LTD 🇺🇸 11443 33443 4443 65443	3.1K	1.6K	153	512	10	298.8
14	▼ 7	AS201814 MEVSPACE sp. z o.o. 🇧🇬 443 1 3629 16379	2.7K	78.8K	20	28.9K	3.9K	0.7
15	▼ 2	AS202425 IP Volume inc 🇳🇱 8787 53 3306 7001	2.7K	37.6K	60	14.1K	627	4.3
16	▼ 1	AS51396 Pfcloud UG (haftungsbeschrankt) 🇳🇱 25565 8080 80 8000	2.4K	16.4K	60	6.9K	273	8.7
17	▲ 4	AS211680 Sistemas Informaticos, S.A. 🇵🇹 443 53 3388 2559	2.1K	2.1K	207	1.0K	10	202.1
18	▼ 2	AS215925 Vpsvault.host Ltd 🇺🇸 9090 8080 80 8081	2.0K	1.5K	18	768	83	23.4
19	▲ 3	AS50219 Valence Technology Co. 🇺🇸 33389 3389 19022 33060	1.2K	1.2K	12	1.0K	102	11.7
21	▼ 4	AS209630 LLC Vash Kredit Bank 🇦🇪 3000 5000 8080 993	658	1.3K	56	2.0K	24	27.3
22	new	AS49870 Alsycon B.V. 🇳🇱 2053 54321 2052 8888	602	5.2K	11	8.7K	476	1.3
23	▼ 9	AS47890 Unmanaged Ltd 🇷🇴 22 7890 443 1080	190	1.1K	12	5.9K	93	2.0
24	▲ 2	AS265691 WI-NET TELECOM S.A.C. 🇵🇪 39131	158	8.4K	18	53.2K	468	0.3
25	▲ 2	AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED 🇭🇰 448 82 10443 9001	143	27.7K	630	193.8K	44	3.3
26	new	AS399629 BL Networks 🇬🇧 8888 11601 7443 4443	82	1.4K	16	17.4K	89	0.9
27	▲ 2	AS52341 WOM SpA 🇨🇱 39131	78	1.7K	17	22.3K	102	0.8
28	▲ 2	AS6939 Hurricane Electric LLC 🇺🇸 80 4434 11434 10514	32	15.3K	690	475.9K	22	1.4
29	▲ 2	AS17072 TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE 🇲🇽 39131 37777 445	31	2.6K	27	81.7K	95	0.3
30	▲ 3	AS57269 Digi Spain Telecom S.A 🇪🇸 39131 445 8547 5555	27	7.7K	28	281.1K	275	0.1
31	▲ 1	AS10439 CariNet, Inc. 🇺🇸 443 8443 80 6379	24	2.5K	43	106.8K	59	0.4
32	new	AS55577 Atria Convergence Technologies Ltd., 🇮🇳 8086 8084 445 1433	21	1.9K	10	91.1K	188	0.1
33	▲ 7	AS63199 CDS Global Cloud Co., Ltd 🇺🇸 8089 8101 8800 4063	18	2.7K	18	148.7K	148	0.1
34	▲ 5	AS14061 DigitalOcean, LLC 🇺🇸 27017 5984 4444 3389	16	51.7K	2.7K	3.2M	19	0.9
35	▼ 1	AS27882 Telefonica Celular de Bolivia S.A. 🇧🇴 39131 445	15	1.2K	13	84.2K	95	0.2
36	▲ 10	AS63949 Akamai Connected Cloud 🇺🇸 8443 8080 443 4443	14	19.7K	433	1.4M	46	0.3
37	–	AS27747 Telecentro S.A. 🇦🇷 39131	12	7.2K	28	623.6K	258	0.0
38	–	AS396982 Google LLC 🇺🇸 443 3389 3390 3388	10	214.4K	2.4K	22.0M	91	0.1
39	▲ 2	AS27947 Telconet S.A 🇪🇨 39131 445 1433	10	5.2K	29	534.5K	179	0.1
40	▼ 4	AS52468 UFINET PANAMA S.A. 🇨🇴 39131 445 22 12850	10	2.4K	19	249.1K	126	0.1
41	▲ 10	AS20473 The Constant Company, LLC 🇺🇸 3389 443 8080 2000	5	8.0K	39	1.5M	206	0.0
42	▲ 1	AS21859 Zenlayer Inc 🇵🇹 53 52010 9398 12579	5	3.9K	262	741.9K	15	0.4
43	–	AS19318 Interserver, Inc 🇺🇸 1433 6379 3000 5432	5	1.0K	23	204.3K	44	0.1
44	▲ 15	AS212238 Datacamp Limited 🇳🇱 6379 1433 8000 25565	4	4.9K	39	1.1M	125	0.0
45	–	AS12252 America Movil Peru S.A.C. 🇵🇪 39131 445	4	2.8K	19	655.4K	146	0.0
46	▲ 15	AS15169 Google LLC 🇧🇪 990 21 143 23	3	7.9K	266	2.6M	30	0.1
47	▲ 7	AS22927 Telefonica de Argentina 🇦🇷 39131 22	2	10.8K	59	4.4M	183	0.0
48	▲ 5	AS45102 Alibaba (US) Technology Co., Ltd. 🇸🇬 445 22 2000 1723	2	13.7K	2.3K	5.7M	6	0.4
49	▲ 7	AS14593 Space Exploration Technologies Corporation 🇨🇴 39131 1433 2222 5985	2	2.3K	32	985.6K	72	0.0
50	–	AS12876 Scaleway SAS 🇫🇷 554 443 80 8080	2	1.0K	27	553.2K	38	0.0
51	new	AS51167 Contabo GmbH 🇫🇷 3000 6379 443 1433	2	1.0K	70	557.1K	14	0.1
52	▼ 5	AS11664 Techtel LMDS Comunicaciones Interactivas S 🇦🇷 39131 1433 445 554	2	2.0K	22	1.1M	89	0.0
53	▼ 5	AS6147 INTEGRATEL PERU S.A.A. 🇵🇪 39131 1433	2	2.6K	19	1.5M	139	0.0
54	▲ 6	AS36352 HostPapa 🇺🇸 22 27017 1433 80	1	1.5K	40	1.0M	36	0.0
55	▼ 3	AS6057 Administracion Nacional de Telecomunicacio 🇺🇾 39131 445 85	1	3.0K	39	2.2M	77	0.0
56	▼ 1	AS10620 Telmex Colombia S.A. 🇨🇴 39131 1433 445	1	2.5K	26	1.8M	96	0.0
57	▼ 7	AS14754 TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD 🇬🇹 39131 445	1	1.2K	13	982.8K	94	0.0
58	▲ 7	AS13999 Mega Cable, S.A. de C.V. 🇲🇽 39131 445 1433	1	2.5K	23	2.0M	109	0.0
59	▼ 1	AS7303 Telecom Argentina S.A. 🇦🇷 39131 1433 445 25574	1	8.5K	41	8.4M	207	0.0
60	▲ 6	AS13489 UNE EPM TELECOMUNICACIONES S.A. 🇨🇴 39131 1433 445	1	2.9K	24	4.2M	119	0.0
61	▲ 9	AS28573 Claro NXT Telecomunicacoes Ltda 🇧🇷 39131 22 37777 12850	1	6.2K	18	10.0M	342	0.0
62	▼ 13	AS9299 Philippine Long Distance Telephone Company 🇵🇭 445 1433 22 389	1	1.8K	18	3.0M	98	0.0
63	▲ 10	AS8151 UNINET 🇲🇽 39131 445 1433 22	1	6.9K	91	13.6M	76	0.0
64	▲ 5	AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 🇨🇳 22 443 2222 1433	0	6.3K	317	13.2M	20	0.0
65	▼ 2	AS12479 Orange Espagne SA 🇪🇸 39131 1433	0	3.4K	20	7.0M	168	0.0
66	▼ 2	AS7713 PT Telekomunikasi Indonesia 🇮🇩 135 445 1433 22	0	1.6K	87	4.3M	19	0.0
67	▲ 5	AS16276 OVH SAS 🇨🇦 22 3000 80 20081	0	1.7K	74	4.6M	24	0.0
68	–	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 🇨🇴 39131 445 389 1433	0	1.0K	18	3.1M	56	0.0
69	▲ 8	AS31898 Oracle Corporation 🇺🇸 443 3000 8443 5173	0	1.5K	70	5.9M	21	0.0
70	▲ 6	AS4808 China Unicom Beijing Province Network 🇨🇳 1433 80 443 8000	0	1.3K	58	7.9M	22	0.0
71	▲ 6	AS8075 Microsoft Corporation 🇺🇸 80 3389 443 22	0	11.0K	2.0K	81.1M	6	0.0
72	▲ 3	AS3352 Telefonica De Espana S.a.u. 🇪🇸 39131 1433 8291 41293	0	1.4K	19	10.4M	74	0.0
73	▼ 2	AS12389 Rostelecom 🇷🇺 445 1080 7890 3128	0	1.2K	83	9.6M	14	0.0
74	▲ 7	AS16509 Amazon.com, Inc. 🇺🇸 443 445 3306 8084	0	17.4K	248	174.5M	70	0.0
75	▲ 5	AS14618 Amazon.com, Inc. 🇺🇸 443 8443 3000 3232	0	2.0K	813	21.8M	2	0.0
76	▲ 3	AS4134 Chinanet 🇨🇳 1433 445 41293 139	0	9.0K	498	110.7M	18	0.0
77	▲ 6	AS9808 China Mobile Communications Group Co., Ltd 🇨🇳 135 1433 445 1088	0	2.8K	44	37.0M	63	0.0
78	▲ 4	AS174 Cogent Communications, LLC 🇺🇸 2080 32014 6331 443	0	1.8K	17	36.3M	105	0.0
79	▼ 1	AS4837 CHINA UNICOM China169 Backbone 🇨🇳 1433 22 6379 5555	0	1.2K	525	57.7M	2	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.