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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 |
| 2K |
| — |
| 1 |
| AS396973US | DHS-39H - Department of Homeland Security | 2K | 2 | 10 |
| AS29805US | WPP-ET-APAC - The Ogilvy Group, LLC | 2K | — | 6 |
| AS1643US | BROC-11-ASN - Brockway Television Inc. | 2K | — | 1 |
| AS14228US | NEW-DULCINA-AGRIDATA - New Dulcina Agridata LLC | 2K | — | 5 |
| AS394660US | NORVADO-NE - Chequamegon Communications Cooperative, Inc. | 2K | — | 2 |
| AS399962US | CCECA-1 - Cherokee County Electric Cooperative Association | 2K | — | 2 |
| AS11900US | DATACRUZ - Datacruz, Inc. | 2K | 65.5K | 2 |
| AS398149US | NTS-HARLINGEN-01 - Vexus Fiber | 2K | — | 4 |
| AS397405US | LINCOLN-ELECTRIC-SYSTEM - Lincoln Electric System | 2K | — | 1 |
| AS21951US | STOLAF - St. Olaf College | 2K | 256 | 3 |
| AS63392US | DELTASTATE-ASN-01 - Delta State University | 2K | — | 1 |
| AS27337US | PASTY1 - PASTY.NET, INC. | 2K | 4.1K | 3 |
| AS15148US | BLACKBAUD-ASN - Blackbaud, Inc. | 2K | — | 4 |
| AS26286US | MYSTICDEVIO - MysticDev LLC | 2K | 2.3K | 13 |
| AS402413US | BURST - BURSTX | 2K | — | 1 |
| AS400287US | TEAMPHARR-ASN - City of Pharr TX | 2K | 65.5K | 2 |
| AS6999US | UU-ITNNET - Interactive Telecom Network | 2K | — | 8 |
| AS397911US | WIFISQUARED - Wifi Squared | 2K | — | 6 |
| AS18682US | AAMU-INTERNET - Alabama A&M University | 2K | — | 5 |
| AS8038US | 6CONNECT - 6connect, Inc. | 2K | 16.4K | 15 |
| AS395267US | LSC-COMMUNICATIONS - LSC Communications | 2K | — | 8 |
| AS46359US | MCKINNEYISD - McKinney ISD | 2K | — | 6 |
| AS11656US | MMO-17-44144 - Medical Mutual | 2K | — | 8 |
| AS23458US | DHH-AUTHORITY - Denver Health and Hospital Authority | 2K | — | 5 |
| AS16750US | ECPI - Electronic Corporate Pages, Inc | 2K | — | 1 |
| AS397161US | NORTHTEXASFIBER - North Texas Fiber, Inc | 2K | — | 2 |
| AS399885US | EVANS-SUTHERLAND-ASN - Evans & Sutherland Computer Corporation | 2K | — | 8 |
| AS46523US | KINETIX-TECH - Kinetix Broadband, LLC | 2K | — | 1 |
| AS18551US | ROTHINC - Rothschild & Co US Inc. | 2K | — | 2 |
| AS36111US | BRINKS-INC-INTERNET - Brink's, Incorporated | 2K | — | 5 |
| AS13880US | ACSL-AS1 - American Century Services, LLC | 2K | — | 6 |
| AS11334US | MIDAMERICAN - MidAmerican Energy Holdings Company | 2K | — | 8 |
| AS25950US | BEGGSTELEPHONE - Beggs Telephone Company, Inc. | 2K | — | 1 |
| AS400251US | AS-ONEIDATEL - Oneida Telephone Exchange | 2K | — | 5 |
| AS14987US | RETHEMHOSTING - Rethem Hosting LLC | 2K | 65.5K | 6 |
| AS3060US | SC-YORKTECH - York Technical College | 2K | — | 1 |
| AS54648US | CALBROADBAND - California Broadband Services | 2K | — | 4 |
| AS54392US | DECATURTELCO - Decatur Telephone Company | 2K | — | 6 |
| AS46838US | POLB-1 - Port of Long Beach | 2K | — | 5 |
| AS40089US | BULLHORN-INC-BOSTON - Bullhorn Inc. | 2K | — | 8 |
| AS19918US | LUCASFILM - Lucasfilm Ltd. LLC | 2K | — | 2 |
| AS13805US | WORLD-COMMUNICATIONS - World Communications | 2K | — | 1 |
| AS16681US | ETS - Educational Testing Service | 2K | — | 8 |
| AS394862US | LT-WR - LT-WR, LLC | 2K | — | 5 |
| AS14145US | REGIONS-ASN-3 - REGIONS FINANCIAL CORPORATION | 2K | 1 | 3 |
| AS401927US | NANA-NET-01 - NANA NET, LLC | 2K | 65.5K | 2 |