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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| PLEXUSSYSTEMS-DV - ROCKWELL AUTOMATION Inc. |
| 256 |
| — |
| 1 |
| AS401724US | HAMILTON-CONNECTS - Hamilton Connects | 256 | 65.5K | 2 |
| AS54516US | T3TRADING - T3 Trading Group LLC | 256 | — | 1 |
| AS396231US | ABILITY-BUSINESS - Ability Business | 256 | 1 | 2 |
| AS672US | DNIC-AS-00672 - Headquarters, USAISC | 256 | — | 1 |
| AS30034US | VCS-ASN - The Vermont Country Store, Inc. | 256 | — | 1 |
| AS53322US | AHALVORSEN-NET - Viking Global Investors LP | 256 | — | 1 |
| AS393986US | BRIGHTRIDGE-1945 - Johnson City Power Board | 256 | 4.1K | 2 |
| AS140890US | MCDCORP-GLOBAL-AS-AP - McDonald's Corporation | 256 | — | 1 |
| AS11926US | HARTSOFTWARE - Hart Software, Inc. | 256 | — | 1 |
| AS22695US | PLAYGROUND - Playground Global, LLC | 256 | 1 | 2 |
| AS33407US | STRAYERUNVERSITY - Strayer University | 256 | — | 1 |
| AS26711US | ICANN-MDR - ICANN | 256 | 1 | 2 |
| AS14748US | BIG5CORP - Big 5 Corp. | 256 | — | 1 |
| AS402382US | NETRIO - Netrio, | 256 | — | 1 |
| AS401471US | TICKETNETWORK-DC-01 - TicketNetwork Inc. | 256 | — | 1 |
| AS14108US | LOGIVISION-01 - Logivision Technologies | 256 | — | 1 |
| AS218981US | Astral-Clocktower-LLC Astral Clocktower LLC | 256 | — | 1 |
| AS401968US | APTAR-GLO-01 - AptarGroup Inc. | 256 | — | 1 |
| AS396999US | TURNEL - TURNEL | 256 | — | 1 |
| AS15097US | FFF-AS - FFF Enterprises, Inc | 256 | — | 1 |
| AS398455US | MERIDIANCC - Meridian Community College | 256 | — | 1 |
| AS62912US | VICTORIA-COLLEGE - Victoria College | 256 | — | 1 |
| AS393739US | AJN-DC-USA - Al Jazeera International (USA), Inc. | 256 | — | 1 |
| AS397729US | FCMC-68234330 - Fulton County Medical Center | 256 | — | 1 |
| AS27637US | MPC-USA-ASN - Mission Pharmacal Company | 256 | — | 1 |
| AS402573US | GAIA-01 - GAIA | 256 | — | 1 |
| AS395412US | VS-MEDIA-IPV4 - VS Media Inc. | 256 | — | 1 |
| AS398711US | QG-AS-1 - Quality Gold, Inc. | 256 | — | 1 |
| AS401766US | THE-LOT - Studio Lending Group, LLC | 256 | — | 1 |
| AS394248US | S1-SUWANEE-DC - SiteOne Landscape Supply | 256 | — | 1 |
| AS219050US | TERAFLOW Teraflow LLC | 256 | — | 1 |
| AS26431US | HAPPYPEERING - Happy Telecommunications LLC | 256 | 32 | 3 |
| AS30668US | MADISONCOUNTYNY-01 - Madison County New York | 256 | — | 1 |
| AS395427US | PH-LSK-003 - Parker Hannifin Corporation | 256 | — | 1 |
| AS393840US | CAG-AS01 - Chapman Automotive Group | 256 | — | 1 |
| AS53557US | PITTS-18 - Pittsburgh Penguins LP | 256 | — | 1 |
| AS63403US | AS-AFILIAS-LAX1 - Afilias, Inc. | 256 | 1 | 2 |
| AS401051US | MEDPACE-NA1 - Medpace, Inc. | 256 | — | 1 |
| AS33249US | ZNT-AS-01 - Zurita Network Technologies LLC | 256 | — | 1 |
| AS36036US | M-FINANCIAL - M Financial Group | 256 | — | 1 |
| AS32657US | TENNESSEE-AQUARIUM - Tennessee Aquarium | 256 | — | 1 |
| AS18821US | IOSOCKET-CLOUD - Iosocket LLC | 256 | — | 1 |
| AS46480US | PEKIN-INSURANCE-HOME-OFFICE - Pekin Insurance | 256 | — | 1 |
| AS40791US | COR-ASN - City of Redding | 256 | — | 1 |
| AS32395US | LNFCU-01 - L & N Federal Credit Union | 256 | — | 1 |
| AS30138US | ARTECH-INFO - Artech Information Systems LLC | 256 | — | 1 |