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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 | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,220 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 | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| CODE3HOSTING - Code |
| 256 |
| — |
| 1 |
| AS396372US | GPHEALTH - Great Plains Health | 256 | — | 1 |
| AS19912US | SKYPACKET-MCKEAN - SkyPacket | 256 | — | 1 |
| AS402145US | GALACTIC - Galactic Services, LLC | 256 | 256 | 2 |
| AS40693US | AS-CVMC-CENTRAL-VERMONT-MEDICAL-CENTER - Central Vermont Medical Center | 256 | — | 1 |
| AS401588US | INNOWAVE - InnoWave Solution LLC | 256 | 256 | 2 |
| AS46859US | MBT-COM - MBTC | 256 | — | 1 |
| AS15112US | GATX-CORP - GATX Corporation | 256 | — | 1 |
| AS21805US | MRHAMEL - Ryan Hamel | 256 | 512 | 3 |
| AS22231US | CITY-OF-CARMEL-INDIANA - City of Carmel | 256 | — | 1 |
| AS54704US | RCU - Royal Credit Union | 256 | — | 1 |
| AS396250US | CATAWBA-ASN - 550 Montgomery Investments, LLC | 256 | 65.5K | 2 |
| AS54079US | BENNINGTON-COLLEGE - Bennington College | 256 | — | 1 |
| AS11715US | KISARA-NETWORK-02 - Kisara Development LLC | 256 | 2 | 3 |
| AS400638US | BSOFTTECH-NET - Bsoft Technology & Computer Services LLC | 256 | — | 1 |
| AS46585US | JFKIAT-LLC - JFK International Air Terminal LLC | 256 | — | 1 |
| AS63350US | FBH-DMO-BGP - Riviera Utilities | 256 | — | 1 |
| AS402061US | NVRSLINE-AS - NVRS LINE inc. | 256 | 1 | 2 |
| AS402011US | AS-NETOMAT - Netomat LLC | 256 | 2 | 3 |
| AS394216US | PUEBLOCOUNTY - Pueblo County Government | 256 | — | 1 |
| AS26643US | ACE-002 - Ace Data Centers II, L.L.C. | 256 | — | 1 |
| AS19846US | UNION-COLLEGE - Union College | 256 | — | 1 |
| AS39958US | GTSX-01 - GTS Securities, LLC | 256 | — | 1 |
| AS400820US | HCDL-CINCINNATI-II-DATA-CENTER - H5 Data Centers | 256 | 4.1K | 2 |
| AS19879US | QOMRO - Propel Labs, LLC | 256 | 4.1K | 2 |
| AS20391US | PRGPARKING-DOMAIN - The Parking Spot | 256 | — | 1 |
| AS402070US | LSDR-ASN-01 - Lone Star Data Ranch LLC | 256 | 256 | 2 |
| AS40071US | IDIRECT - iDirect | 256 | — | 1 |
| AS36239US | OFFICERING-LAX - RATETEL, INC | 256 | — | 1 |
| AS54121US | DMSAS - David M. Schwarz Architects, Inc. | 256 | — | 1 |
| AS14993US | MHASN4-01 - Millennium Health, LLC | 256 | — | 1 |
| AS394210US | SYMBOTAS-1 - Symbotic | 256 | — | 1 |
| AS47091US | AIR-LIQUIDE-US000 - Air Liquide America | 256 | — | 1 |
| AS55139US | LDRY - Landry's, Inc. | 256 | — | 1 |
| AS33286US | TURLOCK-IRRIGATION-DISTICT - Turlock Irrigation District | 256 | — | 1 |
| AS46731US | AS-CITYOFJEFFERSON - City of Jefferson | 256 | — | 1 |
| AS400632US | KUSD-ASN-01 - KUSD | 256 | — | 1 |
| AS26861US | ROCKLIN-ASN - First Technology Federal Credit Union | 256 | — | 1 |
| AS55118US | VALUEDRUGCOMPANYVD-32AS - Value Drug Company Inc. | 256 | — | 1 |
| AS63484US | CREDIT-UNION-WEST - Credit Union West | 256 | — | 1 |
| AS86US | DXC-AS86 - DXC US Latin America Corporation | 256 | 193 | 14 |
| AS398402US | TROPICAL01 - TROPICAL SHIPPING USA, LLC | 256 | — | 1 |
| AS47041US | ASN-STBER-3 - ST BERNARDS HEALTHCARE | 256 | — | 1 |
| AS399209US | ACUMED-02 - Acumed, LLC | 256 | 1 | 2 |
| AS399846US | GOOCHLAND-COUNTY - County of Goochland | 256 | — | 1 |
| AS27212US | PERMAR - Per Mar Security | 256 | — | 1 |
| AS394276US | TAF - TurnAround Factor, Inc. | 256 | 3 | 3 |