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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 | 21,160 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 4,372 |
| 256 |
| — |
| 1 |
| AS63464US | SUNSASN - THE PHOENIX SUNS | 256 | — | 1 |
| AS55262US | ANTHEMCONNECT-LA2 - Anthem Broadband | 256 | 65.5K | 2 |
| AS398177US | ITV-AMERICA-AS1 - ITV America Inc | 256 | — | 1 |
| AS398433US | MANATT - Manatt, Phelps & Phillips | 256 | — | 1 |
| AS396069US | NBC-64-ASN1 - Nazarene Bible College | 256 | 1 | 2 |
| AS400865US | TRICKSOLUTIONS - Trick Solutions | 256 | 256 | 2 |
| AS16676US | BARCHARTCOM - Barchart.com, Inc. | 256 | — | 1 |
| AS393553US | MINERVANETWORKS-US-CA-ALV-HEADQUARTERS - Minerva Networks, Inc. | 256 | — | 1 |
| AS19534US | LCTC-AS1 - Lee County Tax Collector | 256 | — | 1 |
| AS402101US | ALLOY-CLOUD - ALLOY, Inc. | 256 | — | 1 |
| AS1650US | CAMBRIDGEMA-PUBLIC-SCHOOLS - Cambridge Public Schools | 256 | — | 1 |
| AS400225US | NORDSON-192 - Nordson Corporation | 256 | — | 1 |
| AS54970US | NORTHERN-AIR-CARGO - NORTHERN AIR CARGO | 256 | — | 1 |
| AS398972US | MORGAN-ASN-EV-3 - Morgan Stanley | 256 | — | 1 |
| AS399436US | CORTLAND-COUNTY - Cortland County Health Department | 256 | — | 1 |
| AS397510US | CPI - Consumers Power, Inc. | 256 | — | 1 |
| AS26093US | HAR - Houston Association of Realtors | 256 | — | 1 |
| AS26573US | NY-DC - Luxoft USA Inc | 256 | — | 1 |
| AS48652US | V6Market Tnex Inc. | 256 | 65.5K | 2 |
| AS394711US | KORGRID - KorGrid, LLC | 256 | — | 1 |
| AS397918US | ADIDAS-AMERICA - adidas America, Inc. | 256 | — | 1 |
| AS25632US | NORTHBAYHEALTHCARECORP - NorthBay Healthcare Corporation | 256 | — | 1 |
| AS22425US | FL-AS - Finish Line | 256 | — | 1 |
| AS203888US | USKVM - USKVM LLC | 256 | 16 | 2 |
| AS26364US | RDV-CORP - RDV Corporation | 256 | — | 1 |
| AS62854US | CBI1925 - Cheney Bros, Inc. | 256 | — | 1 |
| AS399999US | LYON-BV-01 - LYON COLLEGE | 256 | — | 1 |
| AS32119US | WESLEYAN-SCHOOL - Wesleyan School, Inc. | 256 | 256 | 2 |
| AS398558US | EASTMS-MISSON-01 - East Mississippi Community College | 256 | — | 1 |
| AS27356US | PCCU-ASN-207-SUBNET - Park Community Credit Union, Inc. | 256 | — | 1 |
| AS46229US | MDE - Million Dollar Elm Casino | 256 | — | 1 |
| AS46565US | COC-AS - City of Columbia | 256 | — | 1 |
| AS63137US | DOMDIAGASN211 - Dominion Diagnostics, LLC | 256 | — | 1 |
| AS40274US | PALISADE-CAPITAL - Palisade Capital Management, LP | 256 | — | 1 |
| AS14705US | ROXBURYCC-1234-MH - Roxbury Community College | 256 | — | 1 |
| AS397620US | CITYMENLOPARK - City of Menlo Park | 256 | — | 1 |
| AS14756US | LYNX - LYNX COMMUNICATIONS | 256 | 4.1K | 2 |
| AS32128US | ASN-RICHLINE-NY - Richline Group Inc | 256 | — | 1 |
| AS54547US | BCCLS-AS - Bergen County Cooperative Library System | 256 | — | 1 |
| AS30053US | DUQUESNE-CAPITAL-MANAGEMENT-LLC - DUQUESNE CAPITAL MANAGEMENT LLC | 256 | — | 1 |
| AS16480US | FHMI - FLOYD HEALTHCARE MANAGEMENT, INC. | 256 | — | 1 |
| AS54684US | PPD-WILMINGTON - PPDI | 256 | — | 1 |
| AS399692US | TCAD - Travis Central Appraisal District | 256 | — | 1 |
| AS63146US | WC-28 - Wolf Creek Nuclear Operating Corporation | 256 | — | 1 |
| AS398948US | CCRWEST-AS - Institute for Defense Analyses | 256 | — | 1 |
| AS397730US | MILDPANIC2 - coresdev, LLC | 256 | 32 | 3 |