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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.5M | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,247 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| 1.5K |
| — |
| 6 |
| AS402436US | LV-NETWORKS - BEACON | 1.5K | — | 6 |
| AS18447US | AFFINITY-INTER - Ntirety, Inc. | 1.5K | — | 6 |
| AS500US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 1.5K | — | 6 |
| AS46972US | WIRETAPTELECOM-ATL1 - Wiretap Telecom LLC | 1.5K | — | 6 |
| AS22803US | NOV-AS - National Oilwell Varco, Inc. | 1.5K | — | 6 |
| AS13945US | PRISMTECHNOLOGIESABQ - PRISM Technologies | 1.5K | — | 6 |
| AS54725US | MCKINSEY-US-AAP - McKinsey & Company, Inc. | 1.5K | — | 6 |
| AS36242US | BEEKS-AS-2 - Network Foundations LLC | 1.5K | — | 6 |
| AS399266US | PONENET - Z Plus LLC | 1.5K | 2 | 8 |
| AS402133US | NOVOSERVE-LLC-CUSTOMERS-AS - NovoServe LLC | 1.5K | 256 | 7 |
| AS400537US | AS-CHI-AURORA - Morningstar, Inc. | 1.5K | — | 4 |
| AS25771US | MAXIM-60 - PSI/Maximus | 1.5K | — | 4 |
| AS12186US | GVVME - GVVME | 1.5K | 65.6K | 8 |
| AS399888US | WIRECAT-LLC - WireCat LLC | 1.5K | 261 | 12 |
| AS396961US | INTERNET2-OSG - Internet2 | 1.5K | 6 | 12 |
| AS32622US | TWRS-PW - Towerstream I, Inc. | 1.5K | — | 2 |
| AS46246US | RAPTOR-DC-01 - Raptor Engineering, LLC | 1.5K | 4.1K | 5 |
| AS26679US | HELIACAL - Heliacal Networks | 1.5K | 18 | 6 |
| AS20251US | SOLARWINDSAUSTIN - SolarWinds North America, Inc. | 1.5K | 5 | 11 |
| AS402139US | PEEKABO-ANYCAST - Peekabo Networks | 1.5K | — | 6 |
| AS393582US | KHP-DLA-ASN-01 - VIDEO DIRECT SATELLITE & ENTERTAINMENT | 1.5K | 65.5K | 7 |
| AS13820US | VACARES - Vacares LLC | 1.5K | 1 | 7 |
| AS400799US | PUFFERFISH-STUDIOS - Pufferfish Studios LLC | 1.5K | 8 | 8 |
| AS402273US | INSTANTLY-AI - Instantly.ai | 1.5K | 65.5K | 5 |
| AS40458US | CMIGNET - CMFG Life Insurance Company | 1.5K | — | 6 |
| AS398929US | CLL - Loma Linda Connected Community Program | 1.5K | — | 4 |
| AS33476US | AS33476-TRADE-12 - SS&C Technologies, Inc. | 1.5K | — | 5 |
| AS14255US | AS-USD - University of San Diego | 1.5K | — | 6 |
| AS62490US | COMINTECH - Comintech Corp | 1.5K | — | 6 |
| AS46734US | GSENA1 - GDF Suez Energy North America, INC | 1.5K | — | 2 |
| AS398453US | INCOMM-NET3 - InComm | 1.5K | — | 3 |
| AS13698US | SHAWINDUSTRIES - Shaw Industries Group, Inc. | 1.5K | — | 6 |
| AS26524US | BUDCO - BUDCO | 1.5K | — | 5 |
| AS394457US | OMNIMODE - OMNI-MODE TRADE LLC | 1.5K | 65.5K | 4 |
| AS396881US | DRSERVER1 - drServer.net | 1.5K | 15 | 14 |
| AS395821US | PENNWISP - Penn Wisp, LLC | 1.5K | — | 2 |
| AS54603US | WEGMANS-FM - Wegmans Food Markets, Inc. | 1.5K | — | 4 |
| AS398876US | RVIT-7TRIBES - Round Valley Indian Tribes | 1.5K | — | 2 |
| AS397348US | UE-1 - University of Evansville | 1.5K | — | 6 |
| AS15005US | CIRCLE-B - Circle B Wireless | 1.5K | 256 | 6 |
| AS400132US | RTU-ASN - Reinbeck Telecommunications Utility | 1.5K | — | 4 |
| AS12239US | BLOOMINGTON-SD87 - Bloomington Public School District No. 87 | 1.5K | — | 2 |
| AS398810US | MXROUTE - MXroute LLC | 1.5K | 1 | 7 |
| AS393564US | WSU-SPO-AS - Washington State University | 1.5K | — | 3 |
| AS32541US | CCI-DATA-01 - CCI Networks Services | 1.5K | — | 6 |
| AS399254US | Z3N-LYCO - Lyons Communications | 1.5K | 4.1K | 4 |