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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS15137US | JETPAY-AS - JetPay, LLC | 256 | — | 1 |
| AS399948US | CCU-LAKEWOOD - Colorado Christian University | 256 | — | 1 |
| AS399612US | SAPPHIREK12-ASN01 - Sapphire Software | 256 | 4.1K | 3 |
| AS32456US | WALBRIDGE-ALDINGER-CO-DTW - Walbridge Aldinger Company | 256 | — | 1 |
| AS11895US | KOFAX - Kofax, Inc. | 256 | — | 1 |
| AS32917US | RANDALLCOUNTY-01 - Randall County Texas | 256 | — | 1 |
| AS399213US | VAGARO - Vagaro | 256 | — | 1 |
| AS12225US | CONSUMERINFO1 - Consumerinfo.com, Inc. | 256 | — | 1 |
| AS394702US | MGE - MADISON GAS AND ELECTRIC FOUNDATION, INC. | 256 | — | 1 |
| AS396837US | SEAA18 - North Carolina State Education Assistance Authority | 256 | — | 1 |
| AS401136US | LCI-HQ - LC Industries Inc. | 256 | — | 1 |
| AS218739US | ORG-OCL44-AS Orbis Connect LLC | 256 | — | 1 |
| AS396914US | NET-38-127-93-1 - Pacific Northwest Net, Inc. | 256 | — | 1 |
| AS26007US | SWICKTECH - Swick Technologies, LLC | 256 | — | 1 |
| AS26564US | NEW-CANAAN - Town of New Canaan | 256 | — | 1 |
| AS35841US | CHATS-ASN - CHATSWORTH PRODUCTS, INC. | 256 | — | 1 |
| AS393404US | DTSOLUTIONS-1 - Delval Technology Solutions LLC | 256 | — | 1 |
| AS11981US | AS-REUBENONLINE - Yolo Risk Management LLC | 256 | 256 | 2 |
| AS398832US | STRAYANET-01 - Strayanet LLC. | 256 | — | 1 |
| AS14163US | SHEARMAN - Shearman & Sterling | 256 | — | 1 |
| AS26382US | APAHQ - Allied Pilots Association | 256 | — | 1 |
| AS40018US | DENDREON-DENDREON-PHARMACEUTICALS-LLC-US - Dendreon Pharmaceuticals LLC | 256 | — | 1 |
| AS19534US | LCTC-AS1 - Lee County Tax Collector | 256 | — | 1 |
| AS40331US | MRCYHQ - Mercury Systems, Inc. | 256 | — | 1 |
| AS397840US | GMS-ASN-01 - GENERAL MARKETING SOLUTIONS LLC | 256 | — | 1 |
| AS62562US | SYNCREON-US - Syncreon America Inc | 256 | — | 1 |
| AS402851US | UTURN-ASN - UTurn | 256 | 256 | 2 |
| AS399198US | OKCCC - Oklahoma City Convention Center | 256 | — | 1 |
| AS46705US | ZOOM-ONLINE - Zoom Tech Arizona Limited | 256 | 65.5K | 2 |
| AS401285US | MICHIGANVIRTUAL - MICHIGAN VIRTUAL | 256 | — | 1 |
| AS46181US | MAXXSOUTH-BROADBAND - BCI Mississippi Broadband,LLC | 256 | — | 1 |
| AS398751US | SMCC-ASN-01 - Southwest Mississippi Community College | 256 | — | 1 |
| AS398177US | ITV-AMERICA-AS1 - ITV America Inc | 256 | — | 1 |
| AS398114US | MOSS-ADAMS-ASN01 - MOSS ADAMS, LLP | 256 | — | 1 |
| AS395625US | FISC-INT-ASN - Financial Institution Service Corp. | 256 | — | 1 |
| AS54050US | GPMLIFE - Government Personnel Mutual Life Insurance Company | 256 | — | 1 |
| AS14470US | FALLSCHURCHVAGOV - CITY OF FALLS CHURCH | 256 | — | 1 |
| AS47393US | GROUPM WPP Group USA, Inc. | 256 | — | 1 |
| AS394193US | CMNJ-ASN - County of Morris OIT | 256 | — | 1 |
| AS395274US | LAKE-TRAVIS-ISD - Lake Travis ISD | 256 | — | 1 |
| AS400520US | MTNLINKD-01 - Mtnlinkd, Inc | 256 | — | 1 |
| AS396015US | CRESTLINE-NETWORKS - Crestline Networks | 256 | 18 | 4 |
| AS395640US | APSU-ASN - Austin Peay State University | 256 | — | 1 |
| AS216321US | ZEROAV-EU Zero Attack Vector LLC | 256 | 1K | 8 |
| AS14208US | BUDCO-PSC - BUDCO | 256 | — | 1 |
| AS19987US | MIWAVE-ASN01 - MiWave | 256 | — | 1 |