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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 |
| 256 |
| — |
| 1 |
| AS31787US | MPORTHO - Microport Orthopedics, Inc. | 256 | — | 1 |
| AS400134US | BON-ASN-01 - Balance of Nature | 256 | — | 1 |
| AS53614US | 53614 - Bob's Discount Furniture, LLC | 256 | — | 1 |
| AS54093US | NORTHERN-LIGHT-MAYO-HOSPITAL - Eastern Maine Healthcare Systems | 256 | — | 1 |
| AS53962US | 21FORTY - 2140 Networks LLC | 256 | — | 1 |
| AS40734US | LOMBARD-ODIER-1798 - 1798 Global Partners (USA), Corp. | 256 | — | 1 |
| AS11208US | HCPL-AS - HALL CAPITAL PARTNERS, LLC | 256 | — | 1 |
| AS1065US | TANGERINE-LV - Tangerine Global | 256 | — | 1 |
| AS393656US | AS393656 - WIT.COM Inc. | 256 | 65.5K | 2 |
| AS12215US | RAVANALLC01 - Right Ascension, Inc. | 256 | — | 1 |
| AS139705US | TNSI-AS-AP - Transaction Network Services | 256 | — | 1 |
| AS399920US | DAYNET-01 - Dayton | 256 | 4.1K | 2 |
| AS54561US | SECUREDRAGON - Secure Dragon LLC. | 256 | 1 | 2 |
| AS32219US | SHS-AS-1 - Sparrow Health System | 256 | — | 1 |
| AS22233US | CNB-AS - City National Bank of Florida | 256 | — | 1 |
| AS19348US | CITY-OF-BRENTWOOD---TENNESSEE - City of Brentwood | 256 | — | 1 |
| AS30629US | LCLARK - Lewis & Clark College | 256 | — | 1 |
| AS32928US | ITECHTOOL-ASN-LAH - ITechTool Incorporated | 256 | — | 1 |
| AS23213US | THRIVE-CA4-MTL - Thrive Operations, LLC | 256 | — | 1 |
| AS19277US | IMAGEMASTER-01 - ImageMaster LLC | 256 | — | 1 |
| AS400396US | JCMH - Jackson County Memorial Hospital | 256 | — | 1 |
| AS63037US | ERISCO - ERISCO, LLC | 256 | 65.5K | 2 |
| AS16588US | POLITICO - Politico, LLC | 256 | — | 1 |
| AS27217US | ACN-2 - Jewelry Television | 256 | 3 | 3 |
| AS401337US | PLOVER - Plover LLC | 256 | 4.1K | 2 |
| AS393441US | NIOBRARA-RD - NIOBRARA RESEARCH AND DEVELOPMENT CORPORATION | 256 | — | 1 |
| AS40228US | LLL-NBRK - Levin & Levy, LLP | 256 | — | 1 |
| AS399935US | HAYASHIMO - Hayashimo LLC | 256 | 1 | 2 |
| AS27244US | SMI-NET - Speedway Motorsports, LLC | 256 | — | 1 |
| AS396383US | SEC-98-100-228-0 - SECURA INSURANCE HOLDINGS, INC. | 256 | — | 1 |
| AS14132US | BLUEMATRIX-AS-BLUEMATRIX-INC - Blue Matrix I LLC | 256 | — | 1 |
| AS16850US | SMITH-WESSON - Smith & Wesson | 256 | — | 1 |
| AS30412US | COR-3516 - CITY OF CORONA | 256 | — | 1 |
| AS399807US | MERBIO-01 - Meridian Bioscience Inc. | 256 | — | 1 |
| AS396103US | AGORA - WB Games Inc. | 256 | — | 1 |
| AS399027US | AHH-MAIN-01 - ARKANSAS HEART HOSPITAL ENCORE | 256 | — | 1 |
| AS54269US | PROVIDENTCU - Provident Credit Union | 256 | — | 1 |
| AS1553US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 256 | — | 1 |
| AS401340US | HCIFIRSTASNAME - Hussey Communications Inc | 256 | — | 1 |
| AS401876US | WBC-ASN-02 - Weigel Broadcasting Co | 256 | — | 1 |
| AS46165US | RESOUND GENISYS-PUBLIC - Resound Networks, LLC | 256 | — | 1 |
| AS30111US | COMMAUTO - Commonwealth Automobile Reinsurers | 256 | — | 1 |
| AS47070US | VINEYARDCOLUMBUS - Vineyard Columbus | 256 | — | 1 |
| AS50842US | SERVERFORGE - ServerForge LLC | 256 | 64 | 2 |
| AS32445US | XHOP - XHOP LLC | 256 | — | 1 |
| AS511US | PRISMA HEALTH - Prisma Health | 256 | — | 1 |