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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| 768 |
| 257 |
| 4 |
| AS395414US | ICONECTIV - Iconectiv, LLC | 768 | — | 3 |
| AS31816US | NMDP - National Marrow Donor Program | 768 | — | 3 |
| AS396209US | AS-EP-01-PHL - Enclara Pharmacia, Inc. | 768 | — | 3 |
| AS59993US | UILLLC-20230328 UNLIMITED IS LIMITED, LLC | 768 | — | 3 |
| AS32268US | ARTISAN-PARTNERS-ASN - Artisan Partners Limited Partnership | 768 | — | 3 |
| AS20466US | WGBH-EDUCATIONAL-FOUNDATION - WGBH Educational Foundation | 768 | — | 2 |
| AS393898US | ALWAYSON - AlwaysON Internet | 768 | — | 3 |
| AS23018US | CSMGUSA - CareSource Management Group, Co. | 768 | — | 3 |
| AS395298US | 007-NETWORKS - 007 Networks, LLC | 768 | — | 2 |
| AS40271US | SFMIX-TRANSIT - San Francisco Metropolitan Internet Exchange (SFMIX) | 768 | 1 | 3 |
| AS10379US | DELUXE - Deluxe Corporation | 768 | — | 3 |
| AS54565US | SMART-CITY-KCCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 768 | — | 2 |
| AS53636US | XERIO - Xerio | 768 | — | 3 |
| AS399939US | BHE-GTS - BHE GT&S, LLC | 768 | — | 3 |
| AS401839US | PYRO - Pyro Inc. | 768 | — | 3 |
| AS54270US | LS1 - Light Source 1, Inc | 768 | 65.5K | 4 |
| AS63321US | AS-RAC - Rent-A-Center Inc. | 768 | — | 2 |
| AS399883US | CODEFORHOST-AS-ARIN - CodeforHost Inc | 768 | 3 | 6 |
| AS26751US | IGT-AS-26751 - IGT | 768 | — | 3 |
| AS14360US | AS14360 - Alvarez & Marsal Holdings, LLC | 768 | — | 3 |
| AS54354US | CHESSCOM-01 - Chess.com, LLC | 768 | — | 3 |
| AS33596US | BRUNSWICKCORPORATION - Brunswick Corporation | 768 | — | 3 |
| AS30312US | NETGATE - Netgate | 768 | 17 | 5 |
| AS197570US | BladeX BladeX Networks LLC | 768 | — | 3 |
| AS29767US | COMMERCE-BANCSHARES - Commerce Bank | 768 | — | 3 |
| AS78US | BA-346-78 - BT Americas, Inc | 768 | — | 3 |
| AS21806US | NATIONAL-FUEL - National Fuel Gas Distribution Corporation | 768 | — | 3 |
| AS25992US | LVMPD - Las Vegas Metropolitan Police Department | 768 | — | 3 |
| AS18841US | TRIMBLE-SNVL - Trimble, Inc. | 768 | 2 | 4 |
| AS7170US | MANHA-20 - Manhattan West, LLC | 768 | — | 3 |
| AS399076US | BAYER-MEX - Bayer Corporation | 768 | — | 2 |
| AS36752US | YAHOO-SP1 - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS397787US | MEWUK-NETWORKS - Black Oak Casino | 768 | 4.1K | 3 |
| AS46723US | UNLABELED - Unlabeled LLC | 768 | 7 | 10 |
| AS7741US | CIBC-WORLD-MARKETS - CIBC World Markets | 768 | — | 3 |
| AS395030US | TLC - The Lamar Company, LLC | 768 | — | 3 |
| AS14056US | SEI - SEI Investments | 768 | — | 3 |
| AS394199US | CEPC-AS1 - Central Electric Power Cooperative | 768 | — | 3 |
| AS55059US | MPP - Microwave Power Products, Inc. | 768 | — | 2 |
| AS36490US | OWENSCORNING - Owens-Corning | 768 | 8 | 4 |
| AS33504US | FNBP-2-HERM - FIRST NATIONAL BANK OF PA | 768 | — | 3 |
| AS22839US | MIMOWORKS-01 - Mimoworks Internet LLC | 768 | 256 | 3 |
| AS14729US | THRIVE-SE1 - Thrive Operations, LLC | 768 | — | 2 |
| AS394830US | MASSIVE-MESH - Massivemesh LLC | 768 | 4.1K | 4 |
| AS26885US | QCC-IDC-ASN - Kaplan Higher Education Corporation | 768 | — | 3 |
| AS15027US | FH-ASN-15027 - Foley Hoag LLP | 768 | — | 3 |