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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 | 3,140 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,178 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,946 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,371 |
| CSC-VISA - CSRA Consular Services Inc. |
| 768 |
| — |
| 3 |
| AS23099US | SPR - DM Petroleum Operations Company | 768 | 1 | 4 |
| AS26255US | OAKTONCOMMUNITYCOLLEGE - Oakton Community College | 768 | — | 3 |
| AS395760US | MAPCOEXPRESS-DC-1 - MAPCO Express, Inc. | 768 | — | 3 |
| AS22959US | NOROC - NOROC BROADBAND, LLC | 768 | — | 2 |
| AS36488US | SWA-INET - Southwest Airlines Co. | 768 | — | 3 |
| AS40147US | UCBI - United Community Bank | 768 | — | 2 |
| AS21729US | CROWN-EQUIPMENT - Crown Equipment Corporation | 768 | — | 2 |
| AS32540US | HP-HOOD - HP Hood | 768 | — | 3 |
| AS401813US | ARISTOCRAT INTERACTIVE - NEOGAMES US LLP | 768 | — | 3 |
| AS25936US | MJHS - MJHS Health System | 768 | — | 2 |
| AS64284US | CIC-AS-PRIMARY - CoolSys Commercial & Industrial Solutions, Inc. | 768 | — | 3 |
| AS55164US | PLUS-1 - Plus Analytics, LLC | 768 | — | 3 |
| AS36345US | PNMABQ-1 - Public Service Company of New Mexico | 768 | 65.5K | 4 |
| AS55173US | AVIAT-NETWORKS - Aviat U.S., Inc. | 768 | — | 3 |
| AS18600US | WPIA-NET - R. Fritz Enterprises Inc. | 768 | — | 3 |
| AS14864US | GREENWICH - NatWest Markets Securities Inc. | 768 | — | 3 |
| AS54700US | LEARN-INTERNAL - LEARN | 768 | — | 3 |
| AS21759US | NRUCFC - National Rural Utilities Cooperative Finance Corporation | 768 | — | 3 |
| AS397156US | PGEC - RURALBAND | 768 | 4.1K | 4 |
| AS399300US | CWL-001 - CONQUEST WIRELESS LLC | 768 | — | 3 |
| AS21512US | UNITYHS-AS - Unity Health System | 768 | — | 3 |
| AS11785US | E8-CORE-01 - Element 8 Internet | 768 | — | 2 |
| AS64248US | WCPS-ASN-01 - Worcester County Public Schools | 768 | — | 3 |
| AS25951US | HPINC - HP Inc. | 768 | — | 2 |
| AS33403US | HEIYO-TELECOM - HEIYO CLOUD CORP. | 768 | — | 3 |
| AS402292US | FYRA-STACK-LLC - Fyra Stack LLC | 768 | 2 | 4 |
| AS17320US | CFCU - Coastal Federal Credit Union | 768 | — | 3 |
| AS40695US | FHLB-OF - FHLBanks - Office of Finance | 768 | — | 3 |
| AS16760US | CBOE - Cboe | 768 | — | 3 |
| AS558US | VEGANEXT - NV Next LLC | 768 | — | 3 |
| AS398895US | HBFF-ASN-01 - Hazelden Betty Ford Foundation | 768 | — | 3 |
| AS15260US | DWS-NY - Disney Worldwide Services, Inc. | 768 | — | 3 |
| AS46700US | KANDY-NA - AVCtechnologies USA Inc. | 768 | — | 3 |
| AS63221US | COMMUNITY-IX - Community IX Holdings, Inc. | 768 | — | 3 |
| AS401610US | TRAFIX-LLC - TRAFiX LLC | 768 | — | 3 |
| AS10666US | ALLERGAN - Allergan, Inc. | 768 | — | 3 |
| AS21938US | YAMAHA-DEALERS - YAMAHA MOTOR CORPORATION, U.S.A | 768 | — | 3 |
| AS32108US | ASN-WSECU - WSECU | 768 | — | 3 |
| AS13754US | TKFAST - TkFast Inc | 768 | — | 2 |
| AS62424US | MARRIOTT-EU STARWOOD HOTELS & RESORTS WORLDWIDE, LLC | 768 | 2 | 5 |
| AS46760US | DRURYHOTELS - Drury Inns | 768 | — | 3 |
| AS32130US | BRIGHT-HORIZONS - Bright Horizons | 768 | — | 3 |
| AS12185US | ASN1 - Thompson, Siegel & Walmsley LLC | 768 | — | 3 |
| AS395987US | SEU-MORRISTOWN - Saint Elizabeth University | 768 | — | 3 |
| AS399003US | CCL-AS-01 - chr.is Consulting LLC | 768 | 256 | 3 |
| AS54281US | WTA-WV - Wild Turkey Acres WV LLC | 768 | 2 | 5 |