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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) | 227.7M | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,186 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,373 |
| 256 |
| — |
| 1 |
| AS395691US | XTTRIUM-ASN - XTTRIUM LABORATORIES, Inc. | 256 | — | 1 |
| AS40902US | CURTISS-WRIGHT-EMS - Curtiss-Wright Electro-Mechanical Corporation | 256 | — | 1 |
| AS400797US | PIC-EXT - Ping Identity Corporation | 256 | 1 | 2 |
| AS395750US | BHC-ASN1 - Baptist Health Care, Inc, | 256 | — | 1 |
| AS6955US | DANDH - D&H Distributing Company | 256 | — | 1 |
| AS40783US | CPC - Combined Public Communications, Inc. | 256 | — | 1 |
| AS397129US | LIFESCAN-GLOBAL-CORP - LifeScan Global Corporation | 256 | — | 1 |
| AS33370US | AS-RIVCTY - City of Riverside | 256 | — | 1 |
| AS399442US | OLELO-COMMUNITY-MEDIA-01 - OLELO COMMUNITY MEDIA | 256 | — | 1 |
| AS33245US | JABIL-AS-SINU-PH - Jabil | 256 | — | 1 |
| AS40569US | AS-HTR - Hosting Tornado LLC | 256 | 256 | 2 |
| AS26647US | MSS1 - Movers Specialty Service | 256 | — | 1 |
| AS21630US | SHV1 - Sports South, L.L.C. | 256 | 1 | 2 |
| AS401830US | KEYSTONE-COLLECTIONS-GROUP-01 - Keystone Collections Group | 256 | — | 1 |
| AS399207US | AM-AN-ASN-01 - ACCU-MOLD LLC | 256 | — | 1 |
| AS27028US | SNEDG-LAN-WAN - SNET Diversified Group | 256 | — | 1 |
| AS401002US | NM-NOC-CONN-01 - Bridgers & Paxton Consulting Engineers, Inc. | 256 | — | 1 |
| AS395348US | DATASPINDLE - DataSpindle | 256 | 1K | 2 |
| AS46928US | ACADEMY-SPORTS-OUTDOORS - Academy Sports + Outdoors | 256 | — | 1 |
| AS40566US | HEC-HOU - Hilcorp Energy Company | 256 | — | 1 |
| AS402035US | SGTLABS - Sergeant Laboratories, Inc | 256 | — | 1 |
| AS400761US | MUN-NIDR - PIMCO | 256 | — | 1 |
| AS54297US | SRS-AS - Savannah River Site | 256 | 1 | 2 |
| AS399332US | ASJ2SW - J2 Technology LLC | 256 | — | 1 |
| AS394631US | SHS-NET-1 - SAMARITAN HEALTH SERVICES | 256 | — | 1 |
| AS54544US | WM-549-01 - Woodward McCoach Inc. | 256 | 1 | 2 |
| AS33200US | JABIL-AS-SILU-PH - Jabil | 256 | — | 1 |
| AS401720US | UNREDACTED-AS - Unredacted Inc | 256 | 1 | 2 |
| AS395018US | NPD-EURO - The NPD Group Inc. | 256 | — | 1 |
| AS32920US | ITHAKA-AS32920 - ITHAKA Harbors, Inc. | 256 | — | 1 |
| AS27344US | READING-HOSPITAL - Reading Hospital | 256 | — | 1 |
| AS35930US | DCOD - Datacenter on demand LLC | 256 | 4.1K | 2 |
| AS401312US | TUPELO - Gray Media, Inc. | 256 | — | 1 |
| AS36484US | ALIGN-JS-CAPITAL - JS CAPITAL MANAGEMENT LLC | 256 | — | 1 |
| AS53678US | OFFICERING-ASH - OFFICERING LLC | 256 | — | 1 |
| AS40075US | RADIOLOGYLTD-ASN - Radiology LTD | 256 | — | 1 |
| AS27177US | SIMPLEASN-SIMPLEHUMAN-US - SIMPLEHUMAN, LLC | 256 | — | 1 |
| AS396274US | SVGKC1 - Spring Venture Group LLC | 256 | — | 1 |
| AS400282US | UPX - UPX US LLC | 256 | 65.5K | 3 |
| AS32721US | WESBANCO - WesBanco Bank, Inc. | 256 | — | 1 |
| AS393708US | 4EOS-COM - 4EOS | 256 | — | 1 |
| AS401282US | ORIC-REPUBLIC-01 - Old Republic International Corporation | 256 | — | 1 |
| AS396188US | UMOJO - Umojo, Inc. | 256 | — | 1 |
| AS206023US | TUNSLAB TUNSLAB LLC | 256 | 2 | 3 |
| AS399198US | OKCCC - Oklahoma City Convention Center | 256 | — | 1 |
| AS54476US | EMGTELECOM - VOX CONNECT INC | 256 | 65.5K | 2 |