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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| 1K |
| — |
| 4 |
| AS18830US | HMH-18830 - HMH | 1K | — | 3 |
| AS63475US | SPX-CORPORATION - SPX Corporation | 1K | — | 3 |
| AS21989US | SPECTRUM-BRANDS - Spectrum Brands, Inc. | 1K | — | 3 |
| AS53426US | DNC - Delaware North Companies | 1K | — | 1 |
| AS6111US | FHIS - ADVENTIST HEALTH SYSTEM/SUNBELT, INC. | 1K | — | 3 |
| AS219502US | STORMCLOUD-AS Storm Industries LLC | 1K | — | 4 |
| AS23427US | GLENBARD-HSD87 - Glenbard HSD #87 | 1K | — | 1 |
| AS396121US | BAYER-BERKELEY - Bayer Corporation | 1K | — | 3 |
| AS16978US | MOVIECLIPS - ZEFR, Inc | 1K | — | 1 |
| AS395481US | SUNET - i SW, LLC | 1K | — | 1 |
| AS17285US | VIAMEDIA-LEX-KY - Viamedia, Inc. | 1K | — | 1 |
| AS40493US | GAYLORD PACIFIC IP MANAGEMENT - Gaylord Pacific Resort and Convention Center | 1K | — | 2 |
| AS397288US | MCREY - McNaughton-McKay Electric Company | 1K | — | 4 |
| AS54954US | INFOSTRUCTURES - INFOSTRUCTURES, INC. | 1K | — | 1 |
| AS53620US | PINTEREST - Pinterest, Inc. | 1K | 2 | 6 |
| AS4569US | ASHTON-NET1 - Ashton Systems Corporation | 1K | — | 1 |
| AS32511US | ASANTEHEALTHSYSTEM-1 - Asante Health System | 1K | — | 1 |
| AS397312US | LAKE-LINX - Lake Linx, Inc. | 1K | 65.5K | 5 |
| AS36533US | 698ALEX - Computer Solutions | 1K | — | 1 |
| AS30001US | TECHEVOLUTION - Techevolution | 1K | — | 1 |
| AS36301US | USJHSD-AS - Pagosa Springs Medical Center | 1K | — | 1 |
| AS23281US | CITY-OF-SACRAMENTO - City of Sacramento | 1K | — | 4 |
| AS12158US | ILLUMINA - ILLUMINA, INC. | 1K | — | 3 |
| AS46927US | ANS1 - Radio Training Network Inc. | 1K | — | 1 |
| AS395213US | RAPID7 - Rapid7 Inc | 1K | 1 | 5 |
| AS29986US | GOLDLASSO-AS - Gold Lasso, Inc. | 1K | — | 3 |
| AS46471US | MCRESAS01 - Madison Commercial Real Estate Services, LLC | 1K | — | 1 |
| AS11866US | EL-MALVERN-PA - Ellucian Company LP | 1K | — | 4 |
| AS40648US | LEE-BOCC-AS - Lee County BoCC | 1K | — | 3 |
| AS55025US | BLUEZONE-ISP - BLUEZONE INTERNET INC | 1K | — | 4 |
| AS393968US | GOLDKEY-CORPORATION - GoldKey Corporation | 1K | — | 4 |
| AS33672US | TITAN-LABS-AI-01 - Titan Labs USA, LLC | 1K | — | 1 |
| AS33458US | ASN - Axedale | 1K | — | 4 |
| AS22567US | CWGS - CWGS ENTERPRISES, LLC | 1K | — | 4 |
| AS39957US | PWP-ASN - Perella Weinberg Partners GP LLC | 1K | — | 4 |
| AS13349US | TCU-NET - TEACHERS CREDIT UNION | 1K | — | 3 |
| AS46090US | AMX - LATAM Telecommunications, L.L.C. | 1K | — | 4 |
| AS36072US | 12COMMAS - 12 Commas LLC | 1K | 256 | 2 |
| AS62909US | FCCU-ASN1 - FIRST COMMUNITY CREDIT UNION | 1K | 256 | 4 |
| AS398357US | ETHNC-ASN - Ethernic LLC | 1K | — | 4 |
| AS19780US | AS-INTERMEDIA2 - Intermedia.net, Inc. | 1K | — | 2 |
| AS396091US | UKRC-P1 - The Northern Trust Company | 1K | — | 1 |
| AS32386US | FASTNET-WIRELESS-LLC - Fastnet Wireless LLC | 1K | — | 1 |
| AS23290US | ELPASO-COUNTY-GOVERNMENT-COLORADO - El Paso County | 1K | — | 1 |
| AS23531US | SUNRISE-BANKS - Sunrise Banks | 1K | — | 2 |
| AS30132US | ISC-F-AS - Internet Systems Consortium, Inc. | 1K | 2 | 6 |