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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 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 | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 131.1K |
| 28 |
| AS53266US | DFNSYSRSWL - DFN Systems | 3.1K | — | 2 |
| AS26400US | IAMOTEL - IAMO Communications Inc | 2.8K | — | 9 |
| AS16992US | FLT-15 - FIRST LINK TECHNOLOGY, INC. | 2.8K | — | 11 |
| AS396944US | UNFI - UNFI | 2.8K | — | 8 |
| AS8000US | DWX-AS - Waddell Digital Imaging Center | 2.8K | — | 11 |
| AS35871US | RCI - Reynolds Cable, Inc | 2.8K | — | 7 |
| AS401514US | KVW-AS01 - Kern Valley Wireless, Inc | 2.8K | 69.6K | 8 |
| AS29967US | ARAMARK-NS - Aramark Services, Inc. | 2.8K | — | 11 |
| AS53285US | WCIN - Evolve Cellular Inc. | 2.8K | — | 8 |
| AS36213US | DWASKG - DreamWorks Animation SKG, Inc. | 2.8K | — | 3 |
| AS22732US | LINKNET - Kitsap Regional Library | 2.8K | — | 4 |
| AS397772US | NTS-MCALLEN-01 - Vexus Fiber | 2.8K | — | 5 |
| AS55077US | LIGHTSPEED-TECHNOLOGIES - LIGHT SPEED TECHNOLOGIES LLC | 2.8K | 4.1K | 6 |
| AS9087US | RACKDOG-EU Rackdog, LLC | 2.8K | — | 9 |
| AS393514US | NEW-HAMPTON-MUNICIPAL-LIGHT-PLANT-01 - New Hampton Municipal Light Plant | 2.8K | — | 3 |
| AS394345US | WSU-SEA-AS - Washington State University | 2.8K | — | 4 |
| AS19329US | MCNET - Martin County Board of County Commissioners | 2.8K | — | 3 |
| AS21633US | DOI-NBC-NET - U.S. Department of the Interior | 2.8K | — | 4 |
| AS398879US | SUSQ-BROADBAND - Susquehanna Broadband, LLC | 2.8K | — | 5 |
| AS54720US | CLOUDKEY - Global IP Networks INC | 2.8K | — | 8 |
| AS57US | NL-GIGAPOP - University of Minnesota | 2.8K | 65.5K | 5 |
| AS46970US | ALLBANDCOMMUNICATIONS - Allband Communications Cooperative | 2.8K | — | 7 |
| AS6482US | THRYV - Thryv | 2.8K | — | 9 |
| AS19936US | GORDONFOODS - Gordon Food Service | 2.8K | — | 6 |
| AS30419US | PAEDAE-INC - PaeDae, Inc. | 2.8K | — | 11 |
| AS15086US | QVC - QVC, Inc. | 2.8K | — | 9 |
| AS17082US | SMART-CITY-MBCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 2.8K | — | 7 |
| AS11690US | COGNIZANT-US - Cognizant | 2.8K | — | 5 |
| AS7775US | IRONTRUST-NETWORKS - Irontrust Networks | 2.8K | 65.5K | 8 |
| AS397475US | FBCOM - F&B Communications, Inc. | 2.8K | — | 11 |
| AS400759US | AMERICAN-CLOUD-01 - American Cloud LLC | 2.8K | 65.5K | 11 |
| AS19690US | HYATT-CORP - Hyatt Corporation | 2.8K | 4 | 10 |
| AS16900US | SEDGWICK-CMS - Sedgwick Claims Management Services, Inc. | 2.8K | — | 4 |
| AS62834US | PALIG - Pan-American Life Insurance Group, Inc. | 2.8K | — | 3 |
| AS36824US | ADTAQ - Adtaq Internet, LLC | 2.8K | 1 | 5 |
| AS26127US | FRONTIERLABRESEARCH - Frontier Communications of America, Inc. | 2.8K | 1 | 11 |
| AS62819US | PACIFIC-WAVE-01 - Cetra Group Inc. | 2.8K | — | 3 |
| AS10660US | SYSNET-AS - SYSNET Communications | 2.8K | — | 11 |
| AS14450US | GEICO01 - GEICO | 2.8K | — | 10 |
| AS16912US | 4-LESS-NETWORK - 4 Less Communications, Inc. | 2.8K | — | 5 |
| AS1311US | BARRA-NET-AS - Barra International, LLC | 2.8K | — | 10 |
| AS18892US | MCCORMACK-NETWORKS - Ellington Telephone Company | 2.8K | — | 4 |
| AS11785US | E8-CORE-01 - Element 8 Internet | 2.8K | — | 3 |
| AS400080US | GRUNDY-CENTER-MUNICIPAL-01 - Grundy Center Municipal Utilities | 2.8K | — | 6 |
| AS21738US | ROZINT - Rozint | 2.8K | 517 | 15 |
| AS12122US | STJHS - St. Joseph Health System | 2.8K | — | 9 |