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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| REXELUSA - Rexel |
| 512 |
| — |
| 2 |
| AS398219US | INMAR-DC2 - Inmar, Inc. | 512 | — | 1 |
| AS54890US | BBIX-USA-NET - BBIX USA, INC. | 512 | — | 1 |
| AS14679US | CURBASN - Curb Mobility, LLC | 512 | — | 2 |
| AS35907US | NANTHEALTH - NaviNet Inc. | 512 | — | 2 |
| AS1019US | SOTERAHEALTH - Sotera Health | 512 | — | 2 |
| AS400372US | ID-CL-01 - Murphy's Bowl LLC | 512 | — | 2 |
| AS32117US | BERKSHIRE-HEALTH-SYSTEMS - Berkshire Health Systems | 512 | — | 2 |
| AS394158US | ONCU-M - ONE NEVADA CREDIT UNION | 512 | — | 2 |
| AS36095US | FSBANK-1-36095 - FIRST SECURITY BANK | 512 | — | 2 |
| AS32352US | MGRC - MCGRATH RENTCORP | 512 | — | 2 |
| AS399568US | OFF-GRID-COMMUNICATIONS-LLC - Off-Grid Communications LLC | 512 | 4.1K | 3 |
| AS402063US | XANTIUM-AS-01 - XANTIUM CONTRACTCO LLC | 512 | — | 2 |
| AS398207US | EAITECH-ASN-01 - EAI Technologies | 512 | — | 2 |
| AS46137US | AAA-MWG-IO - AAA-Arizona, Inc. | 512 | — | 2 |
| AS40016US | MESIROW - MESIROW FINANCIAL HOLDINGS, INC. | 512 | — | 2 |
| AS19663US | CASS-STL - CASS INFORMATION SYSTEMS | 512 | — | 2 |
| AS54244US | ICS - ICSolutions | 512 | — | 2 |
| AS402453US | WEALTH - Wealth | 512 | — | 2 |
| AS54459US | TGS-1 - TGS Management Company, LLC | 512 | — | 2 |
| AS400586US | RDM-TECH - rdm.tech | 512 | 256 | 3 |
| AS201834US | SupplyFrame Supply Frame, Inc. | 512 | — | 2 |
| AS22694US | CNBC - NBCUniversal | 512 | — | 2 |
| AS398380US | DCH-ASN-01 - Driscoll Children's Hospital | 512 | — | 2 |
| AS46789US | LINEA-MEX - Linea Mex, LLC. | 512 | 16 | 3 |
| AS19449US | CONCURRENT - Concurrent Technologies Corp. | 512 | — | 2 |
| AS19961US | STARGAS-NET-1 - Star Gas Partners, LP | 512 | — | 2 |
| AS400503US | DAN-SMITH-LLC - Dan Smith LLC | 512 | 32 | 4 |
| AS11035US | KCPA1 - The Raymond F. Kravis Center for the Performing Arts, Inc. | 512 | — | 1 |
| AS399967US | HOMESERVEUSA-BGP-ASN - HomeServe USA Corp | 512 | — | 2 |
| AS12113US | DAWN-FOOD-PRODUCTS - Dawn Food Products, Inc. | 512 | — | 2 |
| AS23310US | TASTYLIME - TASTY LIME | 512 | — | 2 |
| AS16909US | IMPUT - imput | 512 | 6 | 8 |
| AS398145US | MHM-DATACENTER-01 - Centurion Group, Inc. | 512 | — | 2 |
| AS50389US | PHOENIXNAP-DE PHOENIX NAP, LLC. | 512 | 2 | 4 |
| AS53664US | PICOTRADING - Pico Quantitative Trading, LLC | 512 | — | 2 |
| AS398538US | HERITAGE-BROADBAND-LLC - HERITAGE BROADBAND, LLC | 512 | — | 2 |
| AS396918US | APPLE-BANK-FOR-SAVINGS - Apple Bank for Savings | 512 | — | 2 |
| AS11449US | INTERACTIVEBROKERS - Interactive Brokers LLC | 512 | — | 2 |
| AS62756US | DOTBLOCK-2 - HostRocket.com, Inc. | 512 | 256 | 2 |
| AS400952US | KISSUSA-GA - KISS NAIL PRODUCTS, INC | 512 | — | 2 |
| AS36595US | PPI - Payment Processing Inc. | 512 | — | 2 |
| AS12163US | AMHERST-HOLDINGS - Amherst Holdings LLC | 512 | — | 2 |
| AS13566US | UCCSDA - Upper Columbia Conference / SDA | 512 | — | 2 |
| AS394950US | COLLECTIVE-HEALTH - CollectiveHealth, Inc. | 512 | — | 2 |
| AS393929US | SIMPATICO - Simpatico Systems | 512 | — | 2 |
| AS23045US | ASKOH1 - Kohler Co. | 512 | — | 2 |