The internet’s networks
Every autonomous system our collectors can see, ranked by what it announces and by how much of the internet sits behind it.
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87,058 networks — try , or
At a glance
Networks seen
87,058
In 241 countries and regions
IPv4 prefixes
1,192,670
IPv6 prefixes
286,770
Announcing IPv6
43%
37,751 of 87,058
Most prefixes announced
IPv4
- 1AS16509Amazon.com, Inc.
United States18,752 - 2AS577Bell Canada
Canada16,239 - 3AS9808China Mobile Backbone
China14,264 - 4AS8151Telmex (Uninet)
Mexico13,498 - 5AS47331TTNet A.S.
Türkiye8,470 - 6AS22773Cox Communications Inc.United States8,414
- 7AS12479Orange Espagne SA
Spain6,987 - 8AS28573Claro NXT Telecomunicacoes Ltda
Brazil5,144 - 9AS4538China Education and Research Network CenterChina5,142
- 10AS9498Bharti Airtel Ltd.
India5,124
IPv6
- 1AS9808China Mobile BackboneChina7,193
- 2AS16509Amazon.com, Inc.United States5,984
- 3AS4538China Education and Research Network CenterChina5,020
- 4AS7552Viettel Group
Vietnam4,040 - 5AS18403FPT Telecom CompanyVietnam3,769
- 6AS45609Bharti Airtel Ltd. AS for GPRS ServiceIndia3,562
- 7AS11172Alestra, S. de R.L. de C.V.Mexico3,060
- 8AS13335Cloudflare, Inc.United States2,971
- 9AS22773Cox Communications Inc.United States2,415
- 10AS39891Saudi Telecom Company JSC
Saudi Arabia2,328
Most address space announced
IPv4 addresses
- 1AS749United States Department of Defense (DoD)United States227M
- 2AS16509Amazon.com, Inc.United States218M
- 3AS7018AT&T Enterprises, LLCUnited States117M
- 4AS4134China Telecom BackboneChina112M
- 5AS8075Microsoft CorporationUnited States81.8M
- 6AS721United States Department of Defense (DoD)United States73.1M
- 7AS4766Korea Telecom
South Korea70M - 8AS7922Comcast Cable Communications, LLCUnited States68.3M
- 9AS4837China Unicom BackboneChina59.5M
- 10AS9808China Mobile BackboneChina56.6M
IPv6 /64s
- 1AS6939Hurricane Electric LLCUnited States283T
- 2AS7725Comcast Cable Communications, LLCUnited States281T
- 3AS7922Comcast Cable Communications, LLCUnited States36.3T
- 4AS3320Deutsche Telekom AG
Germany35.3T - 5AS11492CABLE ONE, INC.United States30.1T
- 6AS4134China Telecom BackboneChina25.2T
- 7AS9808China Mobile BackboneChina19T
- 8AS17676SoftBank Corp.
Japan18.7T - 9AS4538China Education and Research Network CenterChina17.9T
- 10AS5713Telkom SA Ltd.
South Africa17.7T
Most connected
Most networks behind them
- 1AS6939Hurricane Electric LLCUnited States11,024
- 2AS3356Lumen (Level 3)United States6,547
- 3AS35280F5 Networks SARL
France6,480 - 4AS174Cogent Communications, LLCUnited States6,374
- 5AS49544i3D.net B.V
Netherlands6,126 - 6AS132337Axclusive
Singapore4,742 - 7AS32590Valve CorporationUnited States4,636
- 8AS24482SG.GSSingapore4,571
- 9AS14537Continent 8 LLCUnited States4,187
- 10AS24940Hetzner Online GmbHGermany4,134
Most networks in front of them
- 1AS13335Cloudflare, Inc.United States220
- 2AS14789Cloudflare, Inc.United States217
- 3AS20940Akamai International B.V.Netherlands194
- 4AS6939Hurricane Electric LLCUnited States193
- 5AS54994Meteverse LimitedCanada167
- 6AS139341WeChat/QQ CDNSingapore156
- 7AS24429Alibaba CloudChina143
- 8AS21859Zenlayer IncUnited States141
- 9AS54113Fastly, Inc.United States135
- 10AS174Cogent Communications, LLCUnited States134
Where they are registered
Countries
- United States21.5%18,756
- Brazil10.1%8,770
Russia5.7%4,991
Australia4.3%3,743- China3.5%3,054
Indonesia3.4%2,958- India3.4%2,945
- Germany2.9%2,543
United Kingdom2.6%2,243
Poland2.5%2,149- Canada1.9%1,630
Ukraine1.8%1,557
Registries
- RIPE NCC36.3%31,638
- ARIN23.2%20,233
- APNIC23.2%20,231
- LACNIC14.4%12,579
- AFRINIC2.5%2,145
Prefixes and address space as seen at the last snapshot, from RouteViews MRT archives and public registry data. Plenty of the networks above are mobile carriers; eSIM Guide covers which of them sell travel data, country by country.