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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,138 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,417 |
| 256 |
| — |
| 1 |
| AS63285US | ML-PROD-INTERNET-NORTH - Merchant-Link, LLC | 256 | — | 1 |
| AS62561US | IEHP - Inland Empire Health Plan | 256 | — | 1 |
| AS395124US | KLG - Keller Logistics Group, INC | 256 | — | 1 |
| AS395773US | COLLEGIS - Collegis Education | 256 | — | 1 |
| AS14466US | ARIBA-PGH - SAP America Inc. | 256 | — | 1 |
| AS399367US | KIRKLAND-ELLIS-HU - Kirkland & Ellis LLP | 256 | — | 1 |
| AS29966US | VGRS-AC22 - VeriSign Global Registry Services | 256 | — | 1 |
| AS30615US | MITCHELL-INTERNATIONAL - Mitchell International | 256 | — | 1 |
| AS40503US | AS40503 - Hiram College | 256 | — | 1 |
| AS394999US | K0MWB - K0MWB | 256 | 17 | 3 |
| AS11974US | DOS-GPADN-01 - US Department of State | 256 | — | 1 |
| AS36177US | EASTWESTBANK - EWB | 256 | — | 1 |
| AS36028US | TYSON-ENT-DC-VA1 - NEW CCH, LLC | 256 | 256 | 2 |
| AS396029US | ACT-SVCS-01 - Account Services | 256 | — | 1 |
| AS14809US | MARTEK-WIRELESS - Martek Wireless LLC | 256 | — | 1 |
| AS4888US | USPSOIG-AS1 - United States Postal Service Office of Inspector General | 256 | — | 1 |
| AS11444US | ISHK-NTK - Neuteck LLC | 256 | — | 1 |
| AS398736US | IRIDIUM-SATELLITE-ENT - IRIDIUM SATELLITE,LLC | 256 | 3 | 4 |
| AS10935US | RLC-INTERNET - RLC INTERNET | 256 | — | 1 |
| AS62829US | PL-BGP - Prime-Line Products Company | 256 | — | 1 |
| AS27614US | ELDERHOSTEL - Elderhostel, Inc. | 256 | — | 1 |
| AS398277US | AS - Miller Advertising Agency Inc. | 256 | — | 1 |
| AS6645US | OLEAN-GENERAL-HOSPITAL - OLEAN GENERAL HOSPITAL | 256 | — | 1 |
| AS19861US | WCBE - Washington County Board of Education | 256 | — | 1 |
| AS394934US | UBT-ASN - Union Bank and Trust Company | 256 | — | 1 |
| AS64273US | ORCAS - Orca Networking Services | 256 | 1 | 2 |
| AS394252US | CC-ASN - Clear Creek ISD | 256 | — | 1 |
| AS14597US | TRANS-SYSTEM - Trans-System inc. | 256 | — | 1 |
| AS399498US | PRIVATE-NETWORKS - Private Networks Labs LLC | 256 | — | 1 |
| AS401454US | REDLINEINTERNET - Red Line Internet Services LLC | 256 | — | 1 |
| AS55136US | CF-ASN - CARLTON FIELDS, P.A. | 256 | — | 1 |
| AS1098US | SNAPONE-LEHI-01 - Snap One, LLC. | 256 | — | 1 |
| AS401579US | RYTEL - RyTel LLC | 256 | — | 1 |
| AS401829US | PIPEWORKS-01 - Pipeworks Inc. | 256 | 1 | 2 |
| AS14067US | FOUROVER-GLN-CA - 4 Over, Inc. | 256 | — | 1 |
| AS17247US | TU - The Times Union | 256 | — | 1 |
| AS394633US | ASCENSION-MINISTRYSERVICECENTER - Ascension Technologies | 256 | — | 1 |
| AS393749US | GWDCPW - Greenwood CPW | 256 | — | 1 |
| AS22743US | AS22743 - Corelogic Solutions, LLC | 256 | — | 1 |
| AS399242US | CODINGFLYBOY-LLC - CodingFlyBoy LLC | 256 | 1 | 2 |
| AS397664US | WSC-CHANDLER-AZ - Weidenhammer Systems Corp. | 256 | — | 1 |
| AS398081US | AS-GIGAPOP - GigaPop Internet Services LLC | 256 | 65.5K | 2 |
| AS402017US | RAFASN01 - Radiologic Associates of Fredericksburg, LTD. | 256 | — | 1 |
| AS396053US | DAA - Daikin Applied Americas Inc | 256 | — | 1 |
| AS17214US | GUIDEWIRE - Guidewire Software, Inc. | 256 | — | 1 |
| AS399447US | ECS-NET-01 - The Purple Guys, L.L.C. | 256 | — | 1 |