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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,094 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,247 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,709 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,959 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,423 |
| — |
| — |
| 0 |
| AS19729US | MDE-LLC-AS - Mark Dranoff Enterprises, LLC | — | — | 0 |
| AS19778US | CTSBGP - Custom Technology Solutions, LLC | — | — | 0 |
| AS19884US | DENIR-1-ASN - DENIRO MARKETING, LLC. | — | — | 0 |
| AS19906US | CHARLES-RIVER - Charles River Associates Inc. | — | — | 0 |
| AS19958US | USICA-NET - AT&T Corp. - ITS | — | — | 0 |
| AS19973US | WBS-JAN-1 - Verizon Business | — | — | 0 |
| AS19984US | PATTERSON-UTI - Patterson-UTI Management Services, LLC | — | — | 0 |
| AS20124US | DE-TELECOMM - Windstream Communications LLC | — | — | 0 |
| AS20140US | EHI-CORP-MV-AS - eHealthInsurance Services Inc. | — | — | 0 |
| AS20158US | BOKU-00 - boku, inc. | — | — | 0 |
| AS20192US | SIMWOOD-US - Simwood Inc. | — | — | 0 |
| AS20358US | GG-SUGARSHACK - SUGAR SHACK, LLC | — | — | 0 |
| AS21560US | INFINITE-CAMPUS-DC3 - Infinite Campus, Incorporated | — | — | 0 |
| AS21567US | MARKETRON - Maketron Broadcast Solutions, LLC | — | — | 0 |
| AS21587US | SAI-AS - Salomon Analytics Inc | — | — | 0 |
| AS21642US | BUFFALO-ATL - Buffalo Studios | — | — | 0 |
| AS21650US | CSDL-9-21650 - Circle S development LLC | — | — | 0 |
| AS21658US | CHAMELEON-LABS - Chameleon Labs LLC | — | — | 0 |
| AS21762US | ONWARDTECH - Onward Technology, LLC | — | — | 0 |
| AS21827US | CALIX-TX-DAL - Calix, Inc. | — | — | 0 |
| AS21829US | AS21829 - Uvation Industries, LLC | — | — | 0 |
| AS21880US | ZENDESK-NETWORK-ASN - Zendesk, Inc. | — | — | 0 |
| AS21890US | RISE-OK-DURCM-AS21890 - JAB Wireless, INC. | — | — | 0 |
| AS21894US | INTUIT-MINTBILLS-MILPITAS - Intuit Inc. | — | — | 0 |
| AS21962US | EDGEWAVE2 - Edgewave, Inc. | — | — | 0 |
| AS22086US | AMERICAN-CENTRAL-GAS - American Central Gas Technologies, Inc | — | — | 0 |
| AS22091US | CROSS-INDUSTRIES-CHS - Cross Industries, LLC | — | — | 0 |
| AS22161US | PROJECT-ROVER-ASN - Yahoo Holdings Inc. | — | — | 0 |
| AS22202US | CONFIRMIT - Confirmit, Inc. | — | — | 0 |
| AS22212US | INTERNAP-PEERING-NETWORK - Unitas Global | — | — | 0 |
| AS22264US | CONTE-25-BLA - Contegix | — | — | 0 |
| AS22307US | VINS-AS-7 - Flexential Colorado Corp. | — | — | 0 |
| AS22367US | JCOM-4 - J2 Cloud Services, LLC | — | — | 0 |
| AS22563US | COZEN-PHL - Cozen & O'Connor | — | — | 0 |
| AS22578US | US-KONTIKI-3 - Kollective Technology, Inc. | — | — | 0 |
| AS22650US | CITIGROUP-KNIGHT-FINANCIAL-AS22650 - Citigroup Inc. | — | — | 0 |
| AS22730US | CSKT - Confederated Salish and Kootenai Tribes | — | — | 0 |
| AS22767US | AS22767 - National Aeronautics and Space Administration | — | — | 0 |
| AS22857US | CBRANDS-INC-ASN - Constellation Brands, Inc. | — | — | 0 |
| AS23100US | CT-METROCAST-NET - Breezeline | — | — | 0 |
| AS23123US | ATHOC-BGP - AtHoc Inc | — | — | 0 |
| AS23144US | VCE-COMPANY-LLC - Dell, Inc. | — | — | 0 |
| AS23168US | MCDEAN-ASN - M.C. Dean,Inc. | — | — | 0 |
| AS23185US | GHXUS - GHX | — | — | 0 |
| AS23279US | SMART-CITY-HYP - SMART CITY NETWORKS, LIMITED PARTNERSHIP | — | — | 0 |
| AS23412US | ABAATLASN2 - Abacus Solutions, LLC | — | — | 0 |