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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. | 218M | 24,358 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,342 |
| 512 |
| — |
| 2 |
| AS16971US | AIG-CLOUD-01 - ANSWERS IN GENESIS, INC. | 512 | — | 1 |
| AS393535US | FORTBENDCOUNTY - Fort Bend County | 512 | — | 2 |
| AS63357US | APOG-BSC - Apogee Telecom Inc. | 512 | — | 2 |
| AS36112US | PHSD-DATACENTER - Park Hill School District | 512 | — | 2 |
| AS20204US | NOVOLINK-HOUSTON - NovoLink Communications, Inc. - Houston | 512 | — | 2 |
| AS54976US | CONVO-ASH - Convo | 512 | 1 | 3 |
| AS11198US | SE-AMS-BOS-01 - Schneider Electric IT Corporation | 512 | — | 1 |
| AS33206US | ESI - Estech Systems, Inc | 512 | — | 2 |
| AS14425US | MENDO-COMMUNITY-NET - Mendocino Community Network | 512 | — | 2 |
| AS26933US | DIRECTV-SDWAN-LABC-MSDC - DIRECTV, LLC | 512 | — | 2 |
| AS393815US | GEN4 - MemorialCare Health System | 512 | — | 2 |
| AS22187US | RAULAND-BORG - Rauland-Borg Corporation | 512 | — | 2 |
| AS398406US | ASPHALT-MATERIALS-INC - ASPHALT MATERIALS, INC | 512 | — | 2 |
| AS40000US | NOBLIS-AUTONOMOUS-SYSTEM - Noblis, Inc. | 512 | — | 2 |
| AS40536US | PIXELDECK - PixelDeck Hosting, LLC | 512 | 4 | 6 |
| AS396271US | S-J-ROLLINS-TECHNOLOGIES - S. J. Rollins Technologies | 512 | — | 2 |
| AS14226US | STIFEL - Stifel Nicolaus and Company Incorporated | 512 | — | 2 |
| AS22032US | ORC-KEYLARGO - Ocean Reef Club, Inc. | 512 | — | 2 |
| AS25739US | ADTRAN - Adtran, Inc. | 512 | 17 | 4 |
| AS29919US | 29919 - SELECT PORTFOLIO SERVICING INC | 512 | — | 2 |
| AS36761US | KSBW-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS40334US | TGNA-KENS - TEGNA Inc. | 512 | — | 2 |
| AS401538US | NOVA86 - Nova86 | 512 | 8.2K | 8 |
| AS15351US | VISPERAD-NETWORKS-LLC - VISPERAD NETWORKS, LLC | 512 | — | 2 |
| AS394294US | OTC-AS - Oriental Trading Company, Inc. | 512 | — | 2 |
| AS46854US | KONAM - Konami Gaming, Inc. | 512 | — | 2 |
| AS33316US | AV-INC - AeroVironment, Inc. | 512 | — | 2 |
| AS395551US | CARHA-ASN - CARHARTT Inc. | 512 | — | 2 |
| AS394220US | AMWAYCENTER - Orlando Venues | 512 | — | 2 |
| AS30699US | CORECIVIC - CoreCivic, Inc. | 512 | — | 2 |
| AS32304US | AS-NATUSMED - Natus Medical Inc. | 512 | — | 2 |
| AS54732US | DOW-NETWORKS - Dow Networks | 512 | — | 1 |
| AS17391US | CPWR-DTW-ASN01 - BMC Software, Inc. | 512 | — | 2 |
| AS402416US | RCS-DR-CO-LO-BGP - Resurgent | 512 | — | 2 |
| AS26903US | SALISBURY-ASN - City of Salisbury, North Carolina | 512 | — | 2 |
| AS18448US | GIANTEAGLE - GIANT EAGLE, INC. | 512 | — | 2 |
| AS401446US | CVDN - Converted Networks LLC | 512 | 4.1K | 2 |
| AS396846US | FL-WIFI-01 - Florida Wifi, LLC | 512 | — | 2 |
| AS35921US | COTTAGE-HEALTH02 - Cottage Health | 512 | — | 2 |
| AS398421US | SACS-CMT - Southwest Allen County Schools | 512 | — | 2 |
| AS14458US | WORLDKITCHEN-1 - World Kitchen, LLC | 512 | — | 2 |
| AS36139US | INTRIGUECOMM - Intrigue Communications LLC | 512 | — | 2 |
| AS30586US | BOS - Bank Of Springfield | 512 | — | 2 |
| AS11737US | NMSL-6 - Nu-Age Managed Services, LLC | 512 | — | 2 |
| AS25763US | BHSG-ASN001 - Beacon Hill Staffing Group, LLC | 512 | — | 2 |
| AS396533US | NYT-CP - The New York Times Company | 512 | — | 1 |