subnet.im

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.

86,750 networks — try , or

At a glance

Networks seen

86,750

In 240 countries and regions

IPv4 prefixes

1,174,553

IPv6 prefixes

282,240

Announcing IPv6

43%

37,313 of 86,750

Most prefixes announced

IPv4

  1. 1AS577Bell CanadaCanada16,167
  2. 2AS16509Amazon.com, Inc.United States15,811
  3. 3AS9808China Mobile BackboneChina14,320
  4. 4AS8151UNINETMexico13,231
  5. 5AS22773Cox Communications Inc.United States8,309
  6. 6AS9121Turk TelekomTürkiye8,286
  7. 7AS12479Orange Espagne SASpain6,987
  8. 8AS7545TPG Telecom LimitedAustralia5,836
  9. 9AS4538China Education and Research Network CenterChina5,174
  10. 10AS28573Claro NXT Telecomunicacoes LtdaBrazil5,165

IPv6

  1. 1AS9808China Mobile BackboneChina7,131
  2. 2AS16509Amazon.com, Inc.United States5,789
  3. 3AS4538China Education and Research Network CenterChina5,017
  4. 4AS7552Viettel GroupVietnam4,039
  5. 5AS45609Bharti Airtel Ltd. AS for GPRS ServiceIndia3,647
  6. 6AS18403FPT Telecom CompanyVietnam3,457
  7. 7AS11172Alestra, S. de R.L. de C.V.Mexico2,907
  8. 8AS13335Cloudflare, Inc.United States2,905
  9. 9AS22773Cox Communications Inc.United States2,459
  10. 10AS56041China Mobile Group Zhejiang CompanyChina2,257

Most address space announced

IPv4 addresses

  1. 1AS749United States Department of Defense (DoD)United States228M
  2. 2AS16509Amazon.com, Inc.United States213M
  3. 3AS7018AT&T Enterprises, LLCUnited States114M
  4. 4AS4134China Telecom BackboneChina112M
  5. 5AS8075Microsoft CorporationUnited States81.8M
  6. 6AS721United States Department of Defense (DoD)United States73.1M
  7. 7AS4766Korea TelecomSouth Korea70M
  8. 8AS7922Comcast Cable Communications, LLCUnited States68.3M
  9. 9AS4837China Unicom BackboneChina59.3M
  10. 10AS9808China Mobile BackboneChina56.7M

IPv6 /64s

  1. 1AS6939Hurricane Electric LLCUnited States283T
  2. 2AS7725Comcast Cable Communications, LLCUnited States281T
  3. 3AS7922Comcast Cable Communications, LLCUnited States36.3T
  4. 4AS3320Deutsche Telekom AGGermany35.3T
  5. 5AS4134China Telecom BackboneChina25.2T
  6. 6AS11492CABLE ONE, INC.United States19.9T
  7. 7AS9808China Mobile BackboneChina19T
  8. 8AS17676SoftBank Corp.Japan18.7T
  9. 9AS4538China Education and Research Network CenterChina17.9T
  10. 10AS5713Telkom SA Ltd.South Africa17.7T

Most connected

Most networks behind them

  1. 1AS6939Hurricane Electric LLCUnited States10,832
  2. 2AS3356Lumen (Level 3)United States6,518
  3. 3AS174Cogent Communications, LLCUnited States6,406
  4. 4AS49544i3D.net B.VNetherlands6,113
  5. 5AS1000LINK AMERICANUnited States5,344
  6. 6AS132337AxclusiveSingapore4,869
  7. 7AS14537Continent 8 LLCUnited States4,804
  8. 8AS32590Valve CorporationUnited States4,781
  9. 9AS24482SG.GSSingapore4,552
  10. 10AS38255China Education and Research Network (CERNET)China4,099

Most networks in front of them

  1. 1AS13335Cloudflare, Inc.United States230
  2. 2AS14789Cloudflare, Inc.United States208
  3. 3AS6939Hurricane Electric LLCUnited States201
  4. 4AS20940Akamai International B.V.Netherlands200
  5. 5AS54994Meteverse LimitedCanada165
  6. 6AS139341WeChat/QQ CDNSingapore160
  7. 7AS24429Alibaba CloudChina144
  8. 8AS21859Zenlayer IncUnited States140
  9. 9AS54113Fastly, Inc.United States134
  10. 10AS174Cogent Communications, LLCUnited States132

Where they are registered

Countries

  • United States21.6%18,748
  • Brazil10.1%8,780
  • Russia5.7%4,980
  • Australia4.3%3,743
  • China3.5%3,045
  • India3.4%2,946
  • Indonesia3.3%2,900
  • Germany2.9%2,541
  • United Kingdom2.6%2,225
  • Poland2.5%2,141
  • Canada1.9%1,628
  • Ukraine1.8%1,580

Registries

  • RIPE NCC36.3%31,458
  • ARIN23.3%20,249
  • APNIC23.2%20,118
  • LACNIC14.5%12,558
  • AFRINIC2.4%2,114

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.