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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS5342US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5250US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS403147US | DJBOOYA-NETWORKS-01 - UG | — | 1 | 1 |
| AS3483US | COGENT-3483 - Cogent Communications, LLC | — | — | 0 |
| AS5118US | PHOENIX-IX-ROUTE-SERVERS - Ninja-IX Corporation | — | — | 0 |
| AS3680US | NOVELL - Micro Focus | — | — | 0 |
| AS401857US | BRIGHT-MIND-NETWORK - BrightMind Solutions LLC | — | — | 0 |
| AS400969US | PEG-TW-01 - PEG TECH INC | — | — | 0 |
| AS400714US | ABH-AS - AB Handshake Corporation | — | — | 0 |
| AS215313US | LINEAR-NETWORK Emily Ingalls | — | 17 | 2 |
| AS401955US | PSSCLABS001 - PSSC Labs | — | — | 0 |
| AS402129US | AENTE-HEALTHTECH-AS - AENTE INC | — | — | 0 |
| AS402049US | PCCUA-STUTTGART-AS - Phillips Community College of the University of Arkansas | — | — | 0 |
| AS402034US | WP1 - Winnr | — | — | 0 |
| AS401878US | WBC-ASN-04 - Weigel Broadcasting Co | — | — | 0 |
| AS216124US | C-RAM-AS C-Ram Inc. | — | 256 | 1 |
| AS400888US | AWS-DIRECT-ASN - Spy Fu, Inc. | — | — | 0 |
| AS394882US | JUPITERCLOUD - Jupiter Cloud LLC | — | 2 | 2 |
| AS19633US | DOCUSIGN-TK - Docusign, Inc | — | — | 0 |
| AS398514US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398315US | AS-SSS - Selective Service System | — | — | 0 |
| AS398595US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS397615US | RTVI - RTVI | — | — | 0 |
| AS397758US | DATAROBOT-01 - DataRobot, Inc. | — | — | 0 |
| AS399822US | FARWEST-STEEL-CORP - Farwest Steel Corporation | — | — | 0 |
| AS10515US | CLT-NIC - VeriSign Infrastructure & Operations | — | 1 | 1 |
| AS393691US | FORUM-FARGO-NOC - Forum Communications Company | — | — | 0 |
| AS395983US | AS-BT-D0 - Bankers Trust | — | — | 0 |
| AS396825US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396817US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS394487US | LTDBROADBAND-WATERTOWN - LTD Broadband LLC | — | — | 0 |
| AS394618US | NEXTGEAR-CAPITAL-EXPEDIENT - NextGear Capital, Inc. | — | — | 0 |
| AS394416US | AVANADE - Avanade Inc | — | — | 0 |
| AS6043US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 1 | 1 |
| AS395601US | ASHP-HQ - AMERICAN SOCIETY OF HEALTH SYSTEM PHARMACISTS | — | — | 0 |
| AS393788US | LUXCO-AS - Luxco Inc. | — | — | 0 |
| AS43685US | peaktera-eu Peaktera Holdings Corporation | — | 458.8K | 3 |
| AS393588US | AS393588 - 617A Corporation | — | — | 0 |
| AS395469US | FINDLAY-AUTOMOTIVE - Findlay | — | — | 0 |
| AS395520US | PLATFORM9 - Platform9 | — | — | 0 |
| AS395264US | TREKNETWORKS - Network Resource Technologies Corp | — | — | 0 |
| AS399670US | COMPUTE - HKSOFT | — | 1 | 1 |
| AS400231US | ATCS-NETWORK - A.T.C.S. LLC | — | — | 0 |
| AS394848US | PULSE-2 - Pulse | — | — | 0 |
| AS401300US | PUBLIC-ASN-REQUEST - Summit Securities Group LLC | — | — | 0 |
| AS401286US | POWEREDGE-PROVIDER - PowerEdge Network, LLC | — | — | 0 |