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 30 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 🇨🇦 16379 58185 60931 28171	885.8K	680.3K	127	768	5.4K	165.4
2	–	AS398705 Censys, Inc.scanner 🇺🇸 4841 9090 1962 4369	344.6K	176.5K	16	512	11.0K	31.2
3	–	AS211590 Bucklog SARL 🇫🇷 8417 50050 2000 8140	120.0K	61.4K	16	512	3.8K	31.2
4	–	AS213412 ONYPHE SASscanner 🇺🇸 554 8015 5985 8085	111.4K	142.6K	896	1.3K	159	700.0
5	▲ 1	AS398722 Censys, Inc.scanner 🇺🇸 4840 1962 9090 44818	82.8K	42.4K	96	512	442	187.5
6	▲ 2	AS398324 Censys, Inc.scanner 🇺🇸 9090 1962 18244 4841	69.4K	266.5K	272	3.8K	980	70.8
7	▲ 2	AS48090 Techoff Srv Limited 🇳🇱 80 443 22 8080	65.4K	50.2K	25	768	2.0K	32.6
8	▲ 3	AS215925 Vpsvault.host Ltd 🇺🇸 8728 8080 80 9000	65.3K	83.6K	53	1.3K	1.6K	41.4
9	▲ 1	AS14987 Rethem Hosting LLC 🇺🇸 8678 198 8782 143	61.8K	63.2K	114	1.0K	555	111.3
10	▼ 5	AS204428 SS-Net 🇷🇴 443 80 3389 13389	58.2K	14.9K	11	256	1.4K	43.0
11	▲ 3	AS219502 Storm Industries LLC 🇳🇱 22 23 8080 17000	50.1K	12.8K	50	256	256	195.3
12	–	AS211486 Alferov Aleksey Aleksandrovich 🇧🇬 9044 8326 9814 8068	45.8K	35.2K	13	768	2.7K	16.9
13	▼ 1	AS9465 AGOTOZ PTE. LTD. 🇭🇰 9200 5601 443 8000	30.1K	7.7K	105	256	73	410.2
14	▼ 7	AS213790 Limited Network LTD 🇮🇷 1000 8545 8332 9001	19.7K	25.2K	57	1.3K	443	44.5
15	–	AS201814 MEVSPACE sp. z o.o. 🇧🇬 22 1487 1454 1429	15.8K	327.9K	39	20.7K	8.4K	1.9
16	▼ 3	AS208137 Feo Prest SRL 🇹🇼 80 443 5432 8080	14.9K	11.4K	17	768	673	22.1
17	–	AS197170 TechTies Inc. 🇳🇱 5432 5434 5433 5435	11.1K	36.9K	158	3.3K	234	47.5
18	–	AS202412 Omegatech LTD 🇳🇱 80 8000 8443 1443	9.9K	50.7K	39	5.1K	1.3K	7.6
19	▼ 3	AS49870 Alsycon B.V. 🇸🇨 29022 9023 9011 9024	9.7K	87.3K	21	9.0K	4.2K	2.3
20	–	AS35042 Layer7 Networks GmbH 🇩🇪 1066 2085 1035 1057	8.9K	27.5K	12	3.1K	2.3K	3.9
21	–	AS212512 Detai Prosperous Technologies Limited 🇩🇪 20010 6692 1521 9300	7.1K	10.8K	10	1.5K	1.1K	6.5
22	–	AS211680 Sistemas Informaticos, S.A. 🇵🇹 443 53 80 8080	5.7K	7.3K	205	1.3K	36	160.2
23	–	AS51396 Pfcloud UG (haftungsbeschrankt) 🇳🇱 11235 25565 8080 8081	5.0K	37.4K	92	7.4K	407	12.4
24	–	AS263432 CORPORATIVA TELECOMUNICACOES EIRELI ME 🇧🇷 443 445	4.5K	27.5K	10	6.1K	2.7K	1.6
25	▼ 1	AS202425 IP Volume inc 🇳🇱 7777 1198 9955 1293	4.1K	61.4K	56	15.1K	1.1K	3.7
26	–	AS213388 Iic Rail Limited 🇷🇴 3389 443 12478 10443	3.4K	4.4K	16	1.3K	273	12.5
27	▼ 2	AS209630 LLC Vash Kredit Bank 🇦🇪 443 80 8443 8801	2.5K	3.9K	11	1.5K	353	7.2
28	▼ 1	AS401626 Netiface America, Inc. 🇺🇸 465 27017 5432 8080	2.2K	1.7K	30	768	57	39.1
29	▼ 1	AS42969 Alpha Strike Labs GmbH 🇺🇸 3389 3387 6363 9998	1.7K	1.3K	252	768	5	328.1
30	–	AS215778 Alpha Strike Labs GmbH 🇭🇰 3390 2079 15323 50999	1.5K	1.5K	253	1.0K	6	247.1
31	▼ 2	AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED 🇭🇰 443 8188 7687 80	1.3K	242.7K	926	192.8K	262	4.8
32	–	AS208843 Alpha Strike Labs GmbH 🇩🇪 3389 80 443 33389	1.1K	2.2K	254	2.0K	9	124.0
33	▲ 1	AS47890 Unmanaged Ltd 🇷🇴 22 443 5000 3000	1.0K	9.6K	21	9.2K	455	2.3
34	▼ 15	AS213438 ColocaTel Inc. 🇩🇪 443 4443 10443 4433	938	4.3K	14	4.6K	309	3.0
35	▼ 4	AS206264 Amarutu Technology Ltd 🇳🇱 82 80 83 8080	933	16.5K	20	17.7K	824	1.1
36	▼ 1	AS197769 VPS Dedicated LLC 🇸🇮 10022 4145 4185 6287	816	1.9K	20	2.3K	94	8.7
37	▼ 4	AS137409 GSL Networks Pty LTD 🇺🇸 37777 1080 9050 7777	802	105.0K	35	130.8K	3.0K	0.3
38	▼ 1	AS209605 UAB Host Baltic 🇱🇹 8080 83 8081 81	646	1.5K	10	2.3K	149	4.3
39	▼ 3	AS270068 DESARROLLO DE INFRAESTRUCTURA DE TELECOMUN 🇵🇪 39131 445	556	9.1K	38	16.4K	240	2.3
40	▼ 2	AS265691 WI-NET TELECOM S.A.C. 🇵🇪 39131 135 1433 445	493	26.1K	44	53.0K	594	0.8
41	▼ 2	AS207043 Dedik Services Limited 🇩🇪 80 443 8443 8080	386	2.8K	21	7.2K	132	2.9
42	–	AS63737 VIETSERVER SERVICES TECHNOLOGY COMPANY LIM 🇻🇳 8443 10808 1083 8118	297	7.0K	13	23.6K	538	0.6
43	▼ 3	AS142002 Scloud Pte Ltd 🇺🇸 80 22 49152 1	233	4.9K	20	21.0K	245	1.0
44	▼ 2	AS17072 TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE 🇲🇽 39131 37777 445 11434	231	18.7K	78	80.9K	240	1.0
45	▼ 4	AS6939 Hurricane Electric LLC 🇺🇸 9060 14443 33443 9443	227	103.9K	982	456.7K	106	2.2
46	▼ 4	AS52341 WOM SpA 🇨🇱 39131	226	5.0K	14	22.3K	360	0.6
47	–	AS27882 Telefonica Celular de Bolivia S.A. 🇧🇴 39131 445 22	95	7.9K	34	83.5K	233	0.4
48	▲ 4	AS57269 Digi Spain Telecom S.A 🇪🇸 39131 1433 445	91	25.5K	54	281.1K	473	0.2
49	▼ 5	AS51852 Private Layer INC 🇨🇭 443 8291 135 80	89	3.1K	10	34.3K	305	0.3
50	▼ 7	AS396982 Google LLC 🇺🇸 8240 8190 9443 8140	86	1.7M	6.5K	20.0M	266	0.3
51	▼ 6	AS12252 America Movil Peru S.A.C. 🇵🇪 53 39131 445 1433	84	56.5K	49	671.7K	1.2K	0.1
52	▼ 6	AS14061 DigitalOcean, LLC 🇺🇸 80 443 554 27017	73	227.0K	4.9K	3.1M	47	1.6
53	▲ 34	AS14593 Space Exploration Technologies Corporation 🇨🇴 53 39131 1433 22	71	59.8K	59	843.3K	1.0K	0.1
54	▼ 4	AS10439 CariNet, Inc. 🇺🇸 443 6379 80 445	63	6.7K	39	106.8K	173	0.4
55	–	AS7738 V tal 🇧🇷 8080 39131 445 1000	59	94.5K	19	1.6M	5.0K	0.0
56	▼ 3	AS27887 WIND Telecom S.A. 🇩🇴 39131 445	57	3.9K	25	67.6K	155	0.4
57	▼ 6	AS23470 ReliableSite.Net LLC 🇺🇸 11434 8188 8211 29999	57	2.8K	30	49.9K	95	0.6
58	▼ 9	AS12876 Scaleway SAS 🇫🇷 5173 25565 25566 80	54	27.3K	154	504.1K	177	0.3
59	▼ 3	AS27901 Pacifico Cable SPA. 🇨🇱 39131 445	51	2.7K	24	52.0K	111	0.5
60	▼ 12	AS212238 Datacamp Limited 🇺🇸 39131 8000 465 1433	45	45.8K	71	1.0M	645	0.1
61	▼ 6	AS63949 Akamai Connected Cloud 🇺🇸 9200 3388 3389 49669	44	57.4K	629	1.3M	91	0.5
62	▼ 8	AS53667 FranTech Solutions 🇺🇸 5038 80 2095 443	37	1.2K	20	31.7K	58	0.6
63	–	AS24309 Atria Convergence Technologies Pvt. Ltd. B 🇮🇳 1433 135 445 17000	34	6.6K	52	193.5K	126	0.3
64	▼ 1	AS32475 Internap Holding LLC 🇺🇸 8000 8443 8080 83	34	11.5K	11	343.0K	1.1K	0.0
65	▲ 2	AS27747 Telecentro S.A. 🇦🇷 39131 445 1433 3389	28	17.3K	56	623.6K	309	0.1
66	▼ 6	AS41745 Baykov Ilya Sergeevich 🇩🇪 80 22 8443 54321	27	1.4K	15	51.7K	93	0.3
67	▼ 1	AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOC 🇧🇴 39131 445 1433 22	25	5.8K	61	228.4K	95	0.3
68	▼ 11	AS63199 CDS Global Cloud Co., Ltd 🇺🇸 8089 443 7443 1024	24	3.7K	19	150.0K	192	0.1
69	▼ 11	AS22047 VTR BANDA ANCHA S.A. 🇨🇱 3306 39131 445	23	36.2K	21	1.6M	1.7K	0.0
70	▼ 9	AS8560 IONOS SE 🇬🇧 3389 443 1000 3015	23	17.4K	61	771.6K	285	0.1
71	▲ 7	AS52468 UFINET PANAMA S.A. 🇨🇴 39131 445 17000 6036	22	5.2K	41	229.6K	126	0.2
72	▼ 8	AS17995 PT iForte Global Internet 🇮🇩 135 445 1433 22	22	2.3K	45	106.0K	52	0.4
73	▼ 11	AS51167 Contabo GmbH 🇫🇷 3389 443 80 1433	20	10.7K	147	542.7K	73	0.3
74	▼ 9	AS6057 Administracion Nacional de Telecomunicacio 🇺🇾 80 39131 445 1433	18	39.3K	93	2.2M	423	0.0
75	–	AS25369 Hydra Communications Ltd 🇬🇧 8940 26561 58255 61689	17	2.1K	957	119.0K	2	8.0
76	▼ 4	AS11664 Techtel LMDS Comunicaciones Interactivas S 🇦🇷 39131 445 1433 22	17	18.8K	60	1.1M	313	0.1
77	▼ 4	AS27947 Telconet S.A 🇪🇨 39131 445 1433 22	16	8.8K	66	535.3K	133	0.1
78	new	AS262210 VIETTEL PERU S.A.C. 🇵🇪 39131 445	16	1.0K	25	66.6K	42	0.4
79	▼ 11	AS45102 Alibaba (US) Technology Co., Ltd. 🇺🇸 443 1000 9443 18789	15	81.7K	3.7K	5.5M	22	0.7
80	▼ 10	AS23674 Nayatel (Pvt) Ltd 🇵🇰 445 1433 3389 8088	15	2.1K	27	144.1K	78	0.2
81	▼ 7	AS21859 Zenlayer Inc 🇵🇹 53 8443 443 20000	13	9.2K	172	722.4K	53	0.2
82	▼ 13	AS17451 BIZNET NETWORKS 🇮🇩 135 445 1433 139	12	1.4K	24	121.1K	59	0.2
83	▼ 8	AS58461 CT-HangZhou-IDC 🇨🇳 1433 22 9443 9527	8	4.1K	18	500.0K	227	0.0
84	▲ 2	AS13999 Mega Cable, S.A. de C.V. 🇲🇽 39131 445 1433 17001	8	16.3K	42	2.0M	388	0.0
85	▼ 4	AS6400 Compania Dominicana de Telefonos S. A. 🇩🇴 39131 445 1433 8080	8	6.6K	55	844.0K	120	0.1
86	▼ 4	AS10620 Telmex Colombia S.A. 🇨🇴 39131 22	8	14.0K	41	1.8M	341	0.0
87	▲ 4	AS22927 Telefonica de Argentina 🇦🇷 39131 445 22 5000	7	27.9K	129	4.2M	216	0.0
88	▼ 3	AS15704 Xtra Telecom S.A. 🇪🇸 39131 445 37777 1433	6	5.3K	54	848.6K	98	0.1
89	▼ 6	AS150436 Byteplus Pte. Ltd. 🇸🇬 443 80 9443 8452	6	1.5K	29	244.5K	52	0.1
90	▼ 10	AS3215 Orange 🇫🇷 80 3306 445 37777	6	122.8K	19	20.0M	6.5K	0.0
91	▼ 14	AS36352 HostPapa 🇺🇸 443 80 8194 42110	6	5.9K	55	975.4K	108	0.1
92	▼ 16	AS38365 Beijing Baidu Netcom Science and Technolog 🇨🇳 22 3389 443 6379	6	2.1K	71	347.1K	29	0.2
93	–	AS6697 Republican Unitary Telecommunication Enter 🇧🇾 443 445 1433 17000	6	6.4K	17	1.1M	376	0.0
94	–	AS22884 TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE 🇲🇽 39131 445 22 1433	6	1.6K	35	286.2K	47	0.1
95	▼ 3	AS7303 Telecom Argentina S.A. 🇦🇷 39131 445 80 1433	5	45.3K	84	8.4M	539	0.0
96	▼ 17	AS9329 Sri Lanka Telecom Internet 🇱🇰 1433 445 5985 22	5	1.4K	100	265.5K	14	0.4
97	▼ 13	AS8167 V tal 🇧🇷 3306 39131 445 139	5	15.9K	16	3.2M	993	0.0
98	▼ 10	AS137718 Beijing Volcano Engine Technology Co., Ltd 🇨🇳 22 443 80 1000	5	3.1K	71	630.3K	44	0.1
99	▼ 5	AS6147 INTEGRATEL PERU S.A.A. 🇵🇪 39131 1433 445 591	5	7.4K	48	1.5M	155	0.0
100	▼ 10	AS27699 TELEFONICA BRASIL S.A 🇧🇷 53 3389 39131 445	4	20.6K	27	4.6M	765	0.0
101	▼ 8	AS701 Verizon Business 🇺🇸 443 3306 445 1433	4	156.3K	20	41.6M	7.8K	0.0
102	▼ 7	AS9009 M247 Europe SRL 🇱🇰 554 22 8554 465	3	5.2K	75	1.6M	69	0.0
103	▼ 5	AS27651 ENTEL CHILE S.A. 🇨🇱 39131 445 8000 60888	3	1.8K	44	571.4K	41	0.1
104	new	AS21826 Corporacion Telemic C.A. 🇻🇪 39131 17001 3389 6036	3	1.0K	28	339.2K	37	0.1
105	▼ 3	AS6739 Vodafone Ono, S.A. 🇪🇸 39131 1096 1234	3	5.5K	18	1.8M	307	0.0
106	▼ 8	AS12479 Orange Espagne SA 🇪🇸 39131 445 1000 28188	3	20.4K	57	7.0M	358	0.0
107	▼ 8	AS7418 TELEFONICA CHILE S.A. 🇨🇱 39131 8000	3	6.7K	85	2.4M	79	0.0
108	▼ 8	AS31133 PJSC MegaFon 🇷🇺 39131 445	3	2.0K	30	794.1K	68	0.0
109	▼ 13	AS16276 OVH SAS 🇫🇷 554 3389 8080 5985	2	11.5K	160	4.6M	72	0.0
110	▼ 21	AS29465 MTN NIGERIA Communication limited 🇳🇬 445 3389 22 80	2	1.4K	135	605.2K	11	0.2
111	▼ 14	AS7713 PT Telekomunikasi Indonesia 🇮🇩 445 135 22 1433	2	8.7K	403	4.3M	22	0.1
112	▼ 41	AS28573 Claro NXT Telecomunicacoes Ltda 🇧🇷 53 443 39131 1433	2	18.8K	38	10.0M	494	0.0
113	▼ 12	AS13335 Cloudflare, Inc. 🇦🇷 39131 11235 37777 25565	2	2.4K	45	1.3M	53	0.0
114	▼ 8	AS3352 Telefonica De Espana S.a.u. 🇪🇸 39131 445 1433 443	2	18.3K	69	10.6M	266	0.0
115	▼ 11	AS14754 TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD 🇬🇹 39131 445 1433	2	1.7K	25	982.5K	67	0.0
116	▼ 9	AS23969 TOT Public Company Limited 🇹🇭 445 135 6036 17000	2	2.1K	230	1.3M	9	0.2
117	▼ 2	AS8151 UNINET 🇲🇽 39131 445 1433 5985	1	17.4K	348	13.4M	50	0.0
118	▼ 15	AS132203 Tencent Building, Kejizhongyi Avenue 🇸🇬 80 443 1000 135	1	2.6K	488	2.1M	5	0.2
119	▼ 6	AS12430 Vodafone Spain 🇪🇸 39131 445 1433 22	1	5.3K	36	4.5M	147	0.0
120	▼ 9	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 🇨🇴 39131 445 1433 22	1	3.7K	69	3.1M	53	0.0
121	▼ 2	AS56041 China Mobile communications corporation 🇨🇳 445 1433 5555 1080	1	3.3K	24	3.0M	137	0.0
122	–	AS4811 China Telecom (Group) 🇨🇳 22 445 6379 1000	1	1.1K	51	1.1M	21	0.0
123	▼ 18	AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 🇨🇳 10034 443 21 2222	1	11.8K	377	13.0M	31	0.0
124	–	AS20473 The Constant Company, LLC 🇺🇸 443 80 8080 1000	1	1.3K	24	1.4M	53	0.0
125	▼ 7	AS174 Cogent Communications, LLC 🇺🇸 80 443 8032 8095	1	31.4K	21	36.2M	1.5K	0.0
126	▲ 4	AS12389 Rostelecom 🇷🇺 37777 445 8080 3128	1	7.3K	236	9.6M	31	0.0
127	▼ 19	AS45899 VNPT Corp 🇻🇳 445 135 1433 139	1	5.9K	399	7.7M	15	0.1
128	▼ 14	AS8048 CANTV Servicios, Venezuela 🇻🇪 445 39131 139 1433	1	1.9K	48	2.6M	40	0.0
129	▼ 12	AS9498 BHARTI Airtel Ltd. 🇮🇳 445 22 1433 443	1	1.7K	64	2.3M	27	0.0
130	▼ 21	AS31898 Oracle Corporation 🇺🇸 80 443 1000 8000	1	3.8K	91	5.3M	42	0.0
131	▼ 15	AS58224 Iran Telecommunication Company PJS 🇮🇷 445 135 1433 17000	1	2.1K	191	3.2M	11	0.1
132	▼ 22	AS45090 Shenzhen Tencent Computer Systems Company 🇨🇳 135 52869 443 22	1	3.8K	185	6.2M	20	0.0
133	▼ 13	AS4808 China Unicom Beijing Province Network 🇨🇳 22 135 1433 54321	1	4.8K	103	7.9M	46	0.0
134	▼ 13	AS8075 Microsoft Corporation 🇺🇸 80 443 25565 9200	1	47.1K	2.5K	81.1M	19	0.0
135	▼ 13	AS24940 Hetzner Online GmbH 🇩🇪 30120 1000 3389 1433	1	1.8K	47	3.2M	38	0.0
136	▼ 24	AS7552 Viettel Group 🇻🇳 445 22 135 1433	1	3.0K	219	5.5M	13	0.0
137	▼ 14	AS16509 Amazon.com, Inc. 🇺🇸 666 1521 9600 443	0	84.5K	1.1K	170.1M	80	0.0
138	▼ 13	AS4134 Chinanet 🇨🇳 445 22 1433 21	0	47.4K	4.8K	110.7M	10	0.0
139	▼ 10	AS14618 Amazon.com, Inc. 🇺🇸 443 8443 9200 3232	0	8.1K	1.3K	21.2M	6	0.1
140	▼ 16	AS24560 Bharti Airtel Ltd., Telemedia Services 🇮🇳 445 1433 5985 22	0	1.1K	106	3.0M	11	0.0
141	▼ 14	AS36947 Telecom Algeria 🇩🇿 445 22 39131 1433	0	1.6K	88	4.3M	18	0.0
142	▼ 16	AS8452 IDDQD-AS 🇪🇬 445 1433 37777 139	0	2.7K	233	7.6M	12	0.0
143	–	AS13489 UNE EPM TELECOMUNICACIONES S.A. 🇨🇴 39131 445 1433 17000	0	1.5K	32	4.2M	47	0.0
144	new	AS17557 Pakistan Telecommunication Company Limited 🇵🇰 445 1433 3389 80	0	1.0K	112	3.9M	9	0.0
145	▼ 14	AS9121 Turk Telekom 🇹🇷 445 1433 465 557	0	1.7K	125	6.9M	14	0.0
146	▼ 13	AS4837 CHINA UNICOM China169 Backbone 🇨🇳 22 1433 6379 80	0	12.5K	5.9K	57.7M	2	0.1
147	▼ 13	AS3462 Data Communication Business Group 🇹🇼 445 1433 4173 5010	0	2.5K	201	12.2M	13	0.0
148	–	AS9829 National Internet Backbone 🇮🇳 22 445 1433 17000	0	1.2K	117	6.1M	11	0.0
149	▼ 12	AS26599 TELEFONICA BRASIL S.A 🇧🇷 39131 445 3306 1433	0	2.1K	38	11.7M	56	0.0
150	▼ 18	AS25019 Saudi Telecom Company JSC 🇸🇦 135 1433 445 5985	0	1.0K	49	5.7M	21	0.0
151	▼ 16	AS9808 China Mobile Communications Group Co., Ltd 🇨🇳 445 80 443 22	0	6.5K	219	37.0M	30	0.0
152	▼ 16	AS4812 China Telecom (Group) 🇨🇳 445 1433 6379 1000	0	1.3K	93	8.5M	14	0.0
153	▼ 15	AS4766 Korea Telecom 🇰🇷 1433 22 3389 80	0	5.0K	381	47.2M	13	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.