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

Top ten by AEI, numbered 66 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 11.0K addresses between them and sent 234.9K probes. Three of them are declared scanners.

#	7d	Network	AEI ▾	Probes	IPs	Announced	Probes / IP	IPs / 1k
1	–	AS398705 Censys, Inc.scanner 🇺🇸 9090 1963 445 1080	108.7K	55.6K	15	512	3.7K	29.3
2	▼ 1	AS208137 Feo Prest SRL 🇩🇪 4433 82 8001 88	51.6K	26.4K	11	512	2.4K	21.5
3	▼ 1	AS213412 ONYPHE SASscanner 🇺🇸 3133 554 5432 1433	33.2K	42.5K	1.0K	1.3K	42	800.0
4	▼ 1	AS48090 Techoff Srv Limited 🇧🇬 22 443 80 1723	24.0K	18.4K	19	768	968	24.7
5	▼ 1	AS398324 Censys, Inc.scanner 🇺🇸 9090 4841 1963 4840	14.9K	64.8K	448	4.4K	145	102.9
6	–	AS14987 Rethem Hosting LLC 🇺🇸 31632 30067 3472 30862	9.4K	9.6K	114	1.0K	84	111.3
7	▲ 1	AS9465 AGOTOZ PTE. LTD. 🇭🇰 5601 5432 9200 9100	7.9K	2.0K	53	256	38	207.0
8	▲ 4	AS199457 SolidCore Hosting LTD 🇭🇰 1433 80 443 8080	7.9K	8.0K	17	1.0K	473	16.6
9	▲ 2	AS213790 Limited Network LTD 🇩🇪 1433 443 9001 9000	5.9K	6.0K	13	1.0K	465	12.7
10	▲ 10	AS212512 Detai Prosperous Technologies Limited 🇩🇪 389 5200 1875 3389	5.4K	1.4K	12	256	116	46.9
11	▲ 8	AS197170 TechTies Inc. 🇳🇱 5432 5433 5434 5435	4.4K	13.4K	34	3.1K	394	11.1
12	▼ 3	AS209334 Modat B.V.scanner 🇫🇷 6379 1344 10443 50002	4.0K	3.1K	25	768	123	32.6
13	▲ 7	AS219326 SULAVI LTD 🇺🇸 33443 4445 446 4443	3.2K	1.6K	153	512	11	298.8
14	▼ 1	AS202425 IP Volume inc 🇳🇱 8787 53 3306 7001	2.7K	37.5K	61	14.1K	615	4.3
15	▼ 8	AS201814 MEVSPACE sp. z o.o. 🇧🇬 443 3629 10801 16379	2.4K	70.7K	20	28.9K	3.5K	0.7
16	▼ 2	AS51396 Pfcloud UG (haftungsbeschrankt) 🇳🇱 25565 80 8080 8081	2.4K	16.3K	56	6.9K	292	8.1
17	▲ 4	AS211680 Sistemas Informaticos, S.A. 🇵🇹 53 443 3388 2559	2.1K	2.1K	199	1.0K	11	194.3
18	▼ 2	AS215925 Vpsvault.host Ltd 🇺🇸 9090 8080 80 8081	1.9K	1.5K	19	768	78	24.7
19	▲ 4	AS50219 Valence Technology Co. 🇺🇸 33389 3389 19022 6001	1.2K	1.2K	12	1.0K	99	11.7
20	▲ 4	AS22168 The Shadowserver Foundation, Inc.scanner 🇺🇸 10443 4444 5665 9090	1.0K	9.2K	216	9.0K	43	24.1
21	▼ 4	AS209630 LLC Vash Kredit Bank 🇦🇪 5000 2095 8080 3000	641	1.3K	56	2.0K	23	27.3
22	new	AS49870 Alsycon B.V. 🇳🇱 2053 54321 2052 8888	602	5.2K	11	8.7K	476	1.3
23	▼ 8	AS47890 Unmanaged Ltd 🇷🇴 22 7890 443 1080	191	1.1K	12	5.9K	94	2.0
24	▲ 3	AS265691 WI-NET TELECOM S.A.C. 🇵🇪 39131	159	8.4K	18	53.2K	469	0.3
25	▲ 1	AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED 🇭🇰 448 10443 82 8291	139	26.9K	636	193.8K	42	3.3
26	▲ 3	AS52341 WOM SpA 🇨🇱 39131	78	1.7K	17	22.3K	102	0.8
27	▲ 3	AS6939 Hurricane Electric LLC 🇺🇸 4434 80 11434 11453	32	15.4K	696	476.2K	22	1.5
28	▲ 3	AS17072 TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE 🇲🇽 39131 37777 445	29	2.3K	24	81.7K	97	0.3
29	▲ 4	AS57269 Digi Spain Telecom S.A 🇪🇸 39131 445 8547 5555	25	7.1K	26	281.1K	275	0.1
30	▲ 2	AS10439 CariNet, Inc. 🇺🇸 443 80 8443 53	24	2.5K	43	106.8K	59	0.4
31	▲ 9	AS63199 CDS Global Cloud Co., Ltd 🇺🇸 3003 8089 4000 9100	17	2.6K	18	148.7K	144	0.1
32	▲ 7	AS14061 DigitalOcean, LLC 🇺🇸 27017 5984 5432 3388	15	48.8K	2.7K	3.2M	18	0.8
33	▲ 1	AS27882 Telefonica Celular de Bolivia S.A. 🇧🇴 39131 445	15	1.2K	13	84.2K	94	0.2
34	▲ 11	AS63949 Akamai Connected Cloud 🇺🇸 8443 8080 443 4443	13	18.2K	412	1.4M	44	0.3
35	▲ 2	AS27747 Telecentro S.A. 🇦🇷 39131	12	7.4K	28	623.6K	265	0.0
36	▲ 2	AS396982 Google LLC 🇺🇸 443 3389 20256 3390	10	215.8K	2.4K	22.0M	92	0.1
37	▲ 5	AS27947 Telconet S.A 🇪🇨 39131 445 1433	9	5.1K	29	534.5K	175	0.1
38	▼ 2	AS52468 UFINET PANAMA S.A. 🇨🇴 39131 445 22 12850	9	2.4K	19	248.6K	124	0.1
39	▲ 12	AS20473 The Constant Company, LLC 🇺🇸 3389 443 8080 2000	5	7.6K	38	1.5M	201	0.0
40	▲ 3	AS21859 Zenlayer Inc 🇵🇹 52010 9398 12579 3067	5	3.8K	260	741.9K	15	0.4
41	–	AS19318 Interserver, Inc 🇺🇸 1433 6379 3000 5432	5	1.0K	26	204.3K	40	0.1
42	▲ 4	AS12252 America Movil Peru S.A.C. 🇵🇪 39131 445	4	2.9K	19	655.4K	152	0.0
43	▲ 16	AS212238 Datacamp Limited 🇳🇱 6379 1433 8000 25565	4	4.9K	39	1.1M	125	0.0
44	▲ 18	AS15169 Google LLC 🇧🇪 990 143 21 23	3	7.7K	265	2.6M	29	0.1
45	▲ 10	AS22927 Telefonica de Argentina 🇦🇷 39131 22	3	10.9K	59	4.4M	185	0.0
46	▲ 8	AS45102 Alibaba (US) Technology Co., Ltd. 🇸🇬 445 22 2000 9443	2	13.8K	2.3K	5.7M	6	0.4
47	▲ 10	AS14593 Space Exploration Technologies Corporation 🇨🇴 39131 1433 2222 5985	2	2.3K	34	985.6K	68	0.0
48	▼ 7	AS51167 Contabo GmbH 🇫🇷 3000 6379 443 1433	2	1.0K	66	557.1K	15	0.1
49	▼ 1	AS6147 INTEGRATEL PERU S.A.A. 🇵🇪 39131 1433	2	2.7K	19	1.5M	145	0.0
50	▲ 10	AS36352 HostPapa 🇺🇸 27017 22 1433 80	2	1.8K	37	1.0M	49	0.0
51	▼ 4	AS11664 Techtel LMDS Comunicaciones Interactivas S 🇦🇷 39131 1433 445 554	2	2.0K	22	1.1M	89	0.0
52	–	AS6057 Administracion Nacional de Telecomunicacio 🇺🇾 39131 445 85	1	3.1K	39	2.2M	79	0.0
53	–	AS10620 Telmex Colombia S.A. 🇨🇴 39131 1433 445	1	2.5K	27	1.8M	94	0.0
54	▼ 5	AS14754 TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD 🇬🇹 39131 445	1	1.2K	13	982.8K	93	0.0
55	▲ 8	AS13999 Mega Cable, S.A. de C.V. 🇲🇽 39131 445 1433	1	2.4K	23	2.0M	106	0.0
56	▲ 2	AS7303 Telecom Argentina S.A. 🇦🇷 39131 445 1433 25553	1	8.3K	41	8.4M	203	0.0
57	▼ 7	AS9299 Philippine Long Distance Telephone Company 🇵🇭 445 1433 22 389	1	2.5K	18	3.0M	137	0.0
58	▲ 9	AS13489 UNE EPM TELECOMUNICACIONES S.A. 🇨🇴 39131 1433 445	1	2.6K	25	4.2M	105	0.0
59	▲ 11	AS28573 Claro NXT Telecomunicacoes Ltda 🇧🇷 39131 22 37777 12850	1	5.9K	18	10.0M	329	0.0
60	▲ 13	AS8151 UNINET 🇲🇽 39131 445 1433 22	1	7.4K	93	13.6M	79	0.0
61	▲ 8	AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 🇨🇳 22 443 2222 459	0	6.6K	321	13.2M	20	0.0
62	▲ 2	AS12479 Orange Espagne SA 🇪🇸 39131 1433	0	3.3K	20	7.0M	165	0.0
63	▲ 9	AS16276 OVH SAS 🇨🇦 22 3000 80 20081	0	1.8K	77	4.6M	23	0.0
64	▲ 1	AS7713 PT Telekomunikasi Indonesia 🇮🇩 135 445 1433 22	0	1.6K	88	4.3M	19	0.0
65	▲ 3	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 🇨🇴 39131 445 389 22	0	1.0K	18	3.1M	58	0.0
66	▲ 11	AS31898 Oracle Corporation 🇺🇸 443 3000 8443 5174	0	1.5K	81	5.9M	19	0.0
67	▲ 9	AS4808 China Unicom Beijing Province Network 🇨🇳 1433 80 443 8000	0	1.3K	58	7.9M	23	0.0
68	▲ 6	AS3352 Telefonica De Espana S.a.u. 🇪🇸 39131 1433 8291 41293	0	1.5K	19	10.4M	76	0.0
69	▲ 8	AS8075 Microsoft Corporation 🇺🇸 80 3389 443 9200	0	11.0K	2.0K	81.1M	6	0.0
70	▲ 1	AS12389 Rostelecom 🇷🇺 445 1080 7890 1433	0	1.2K	83	9.6M	14	0.0
71	▲ 10	AS16509 Amazon.com, Inc. 🇺🇸 443 8084 22225 80	0	17.6K	259	174.6M	68	0.0
72	▲ 7	AS14618 Amazon.com, Inc. 🇺🇸 443 8443 3232 3000	0	2.0K	809	21.8M	2	0.0
73	▲ 7	AS4134 Chinanet 🇨🇳 1433 445 41293 139	0	9.2K	500	110.7M	18	0.0
74	▲ 9	AS9808 China Mobile Communications Group Co., Ltd 🇨🇳 135 1433 445 22	0	2.8K	47	37.0M	59	0.0
75	▲ 7	AS174 Cogent Communications, LLC 🇺🇸 2080 32014 4449 6331	0	1.8K	18	36.3M	100	0.0
76	▲ 2	AS4837 CHINA UNICOM China169 Backbone 🇨🇳 1433 22 6379 5555	0	1.3K	513	57.7M	3	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.