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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| 1.3K |
| — |
| 5 |
| AS397760US | OPTYM - Optym, Inc. | 1.3K | — | 2 |
| AS46946US | TJU-46946 - Thomas Jefferson University | 1.3K | — | 5 |
| AS62467US | TXNET - TXNet Communications LLC | 1.3K | 2.3K | 9 |
| AS399889US | NET-FRONT-001 - Qwscloud Dot Com | 1.3K | — | 2 |
| AS400255US | BITFIRE - BitFire Networks, LLC | 1.3K | — | 5 |
| AS11064US | TAEYANG-INNOVATIONS - Taeyang Innovations LLC | 1.3K | 256 | 6 |
| AS62476US | DANC - Development Authority of the North Country | 1.3K | — | 3 |
| AS11496US | JPMORGAN-CPS-TAMPA-FL - JPMorgan Chase & Co. | 1.3K | — | 5 |
| AS18745US | CWPS-WDC - CWPS | 1.3K | — | 5 |
| AS205484US | SPLT-EUR1 SailPoint Technologies, Inc. | 1.3K | — | 2 |
| AS18662US | AFLAC - Aflac | 1.3K | — | 4 |
| AS36838US | INFOIMAGE - INFOIMAGE OF CALIFORNIA | 1.3K | — | 5 |
| AS55265US | VITAS-HOSPICE-SMY-SCOTTS - Vitas Healthcare Corporation | 1.3K | — | 4 |
| AS30687US | NWS-SOUTHERN-REGION-HEADQUARTERS - National Weather Service Southern Region Headquarters | 1.3K | — | 5 |
| AS393669US | PRIME-HEALTHCARE-AS - Prime Healthcare Services, Inc. | 1.3K | — | 5 |
| AS13458US | DKP-ASN - DAVIDSON KEMPNER CAPITAL MANAGEMENT LP | 1.3K | — | 5 |
| AS26144US | FISERV-EFT - Fiserv Solutions, LLC | 1.3K | — | 4 |
| AS402509US | NET-BROBAW - Erobaw | 1.3K | — | 5 |
| AS401669US | CLOUDCENTRX - cloudCENTRX | 1.3K | — | 3 |
| AS54559US | ALGH-DCS - COUNTY OF ALLEGHENY | 1.3K | — | 4 |
| AS22300US | FANDOM - Wikia, Inc. | 1.3K | — | 5 |
| AS32908US | TRIMBL-NUM - Trimble, Inc. | 1.3K | — | 5 |
| AS40051US | DWS-HK - Disney Worldwide Services, Inc. | 1.3K | — | 5 |
| AS30622US | VENABLE - Venable LLP | 1.3K | — | 5 |
| AS11588US | LAMBDA-BB - Lambda | 1.3K | 65.5K | 3 |
| AS40033US | RED-SPECTRUM - Red-Spectrum Communications | 1.3K | 65.5K | 6 |
| AS12085US | EQUINIX-EC-DC - Equinix, Inc. | 1.3K | 2 | 6 |
| AS16721US | CX - Algorix LLC | 1.3K | 4.1K | 3 |
| AS397078US | RNETWORKS-ASN - rNetworks, LLC | 1.3K | — | 5 |
| AS46461US | CRYPTICSTUDIOS - CRYPTIC STUDIOS, INC. | 1.3K | — | 4 |
| AS25602US | TRAVELERSPCAS2 - Travelers Property Casualty Corp. | 1.3K | — | 5 |
| AS31902US | OTS - Open Technology Solutions, LLC | 1.3K | — | 5 |
| AS398549US | ZERO-ATTACK-VECTOR - Zero Attack Vector LLC | 1.3K | 25.4K | 52 |
| AS400585US | MBI-ASN01 - Michael Baker International, Inc. | 1.3K | — | 5 |
| AS398424US | QORVO-DC - Qorvo US, Inc | 1.3K | — | 5 |
| AS13434US | CORVELCORP - CORVEL CORPORATION | 1.3K | — | 4 |
| AS62839US | FADV - First Advantage Corporation | 1.3K | — | 3 |
| AS40694US | TEKWAV - TekWav | 1.3K | — | 2 |
| AS393312US | TFX-ASN - TELEFLEX INCORPORATED | 1.3K | — | 4 |
| AS21726US | RGTS-JFK - Convergeone Unified Technology Solutions, Inc. | 1.3K | — | 5 |
| AS15277US | HILLINTL-USMRL1 - Hill International, Inc. | 1.3K | — | 5 |
| AS398373US | SERVERDESTROYERS - Server Destroyers LLC | 1.3K | — | 2 |
| AS32361US | ULTRALIGHT - UltraLight | 1.3K | 65.5K | 11 |
| AS13481US | AMS-AGD-PR - HEWLETT PACKARD ENTERPRISE COMPANY | 1.5K | — | 3 |
| AS26950US | LIPPERT-AS1 - Lippert Components Manufacturing, Inc. | 1.5K | — | 2 |
| AS402267US | HADOOPSKY - Hadoopsky LLC | 1.5K | — | 6 |