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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 |
| AS396536US | SENTRACAM - SentraCam | 256 | — | 1 |
| AS401297US | IGLOO - June Slater | 256 | 1 | 2 |
| AS400410US | DONNA-4 - Dona Ana County | 256 | — | 1 |
| AS395083US | APOG-SUNYCANTON-NY - Apogee Telecom Inc. | 256 | — | 1 |
| AS40587US | IMAGESTREAM-1 - ImageStream Internet Solutions, Inc. | 256 | — | 1 |
| AS40521US | BLUEFIN-TRADING - Bluefin Trading, LLC | 256 | — | 1 |
| AS18543US | ION-NEWYORKCITY-NYC - ION MEDIA NETWORKS | 256 | — | 1 |
| AS394711US | KORGRID - KorGrid, LLC | 256 | — | 1 |
| AS63137US | DOMDIAGASN211 - Dominion Diagnostics, LLC | 256 | — | 1 |
| AS53925US | CBWE-COMM-IMDCPHX1 - CBWE Communications, LLC | 256 | — | 1 |
| AS27189US | MARTEN-TRANSPORT-LTD - Marten Transport, Ltd. | 256 | — | 1 |
| AS16408US | LN-DREWU-ASN - Los Nettos | 256 | — | 1 |
| AS398805US | SOC-REDUNDANCY - Securitas Security Services USA, Inc | 256 | — | 1 |
| AS400785US | MALL OF AMERICA - MALL OF AMERICA | 256 | — | 1 |
| AS393538US | ARLP-OPSTECH - Alliance Coal, LLC | 256 | — | 1 |
| AS399829US | MHD-COMMUNICATIONS - MHD Communications | 256 | — | 1 |
| AS27344US | READING-HOSPITAL - Reading Hospital | 256 | — | 1 |
| AS30363US | GLOBALRESPONSEUSA - Global Response Corporation | 256 | — | 1 |
| AS36359US | WORTH-CIT-SCHOOLS-OH - Worthington City Schools | 256 | 1 | 2 |
| AS206100US | ccr_ripe Circle Computer Resources Inc | 256 | — | 1 |
| AS397959US | ADTELL-SHIP-01 - Adtell Integration | 256 | — | 1 |
| AS400910US | MOOSE - Uptown Moose, Inc. | 256 | 65.5K | 2 |
| AS397260US | CYNAXA - Cynaxa LLC | 256 | — | 1 |
| AS54059US | ITELLUS - Itelligence Inc. US | 256 | — | 1 |
| AS393413US | HILLSOUTH-DATACENTER01 - Scient Partners, LLC | 256 | — | 1 |
| AS55146US | BGWAT - NUCOR BUILDING SYSTEMS SALES CORPORATION | 256 | — | 1 |
| AS63193US | AHS - Atlanticare Health System Inc. | 256 | — | 1 |
| AS393279US | TECHNOMAD-LLC-AS-1 - Technomad, LLC | 256 | — | 1 |
| AS40774US | BSM-9-ASN - Bay State Milling Company | 256 | — | 1 |
| AS396262US | FSO-ASN - Fresno County Sheriff's Office | 256 | — | 1 |
| AS11874US | COLUMBUSREGIONALHOSPIAL - Columbus Regional Hospital | 256 | — | 1 |
| AS394604US | XBHS-AS1 - Xaverian Brothers High School | 256 | — | 1 |
| AS396090US | SEMINOLECOUNTY - Seminole County Government | 256 | — | 1 |
| AS402744US | GSA-NET-01 - GRC | 256 | — | 1 |
| AS399722US | AS-MS-78065 - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | 256 | — | 1 |
| AS401642US | CARVERAUTO - Carver Automation Corporation | 256 | 1 | 2 |
| AS14756US | LYNX - LYNX COMMUNICATIONS | 256 | 4.1K | 2 |
| AS62997US | RICKEY-S-FRANCIS-JR - Abc-Hosters LLC | 256 | 2 | 3 |
| AS54663US | HALIFAXHEALTH-WEBAPPS - Halifax Health | 256 | — | 1 |
| AS40858US | CROSSTEL20051791WESTPOINT - Crosstel Inc | 256 | — | 1 |
| AS394571US | WATERSTONE - Waterstone Mortgage | 256 | — | 1 |
| AS13508US | BAKER-BROTHERS - Baker Bros. Advisors, LLC | 256 | — | 1 |
| AS27019US | BALLNET - Ball Horticultural Company | 256 | — | 1 |
| AS393285US | CTPF203 - Chicago Teachers Pension Fund | 256 | — | 1 |
| AS30291US | DFMC - Delmarva Foundation for Medical Care, Inc. | 256 | — | 1 |
| AS62678US | HORACEMANNSCHOOL - Horace Mann School | 256 | — | 1 |