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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 4,341 |
| 1.3K |
| 257 |
| 6 |
| AS11897US | TULSA-COMMUNITY-COLLEGE - Tulsa Community College | 1.3K | — | 5 |
| AS398387US | NA-DC - International Flavors & Fragrances, Inc. | 1.3K | — | 5 |
| AS36299US | CAPSTONECO-1 - Capstone Investment Advisors LLC | 1.3K | — | 4 |
| AS399912US | HAYO-TELECOM - Hayo Telecom, Inc | 1.3K | 65.5K | 3 |
| AS845US | SBA-CONNECT - SBA Connect, LLC | 1.3K | 1 | 6 |
| AS53603US | MAHINDRA-SATYAM-CLV - TechMahindra Americas Inc. | 1.3K | — | 4 |
| AS213510US | EJOHNSON Eric Johnson | 1.3K | — | 2 |
| AS22258US | COMCAST-22258 - Comcast Cable Communications, LLC | 1.3K | 15 | 20 |
| AS32482US | BANDWIDTH-US-2 - Bandwidth Inc. | 1.3K | 65.5K | 5 |
| AS15315US | IVANET-LISBON - IBASIS INC. | 1.3K | — | 4 |
| AS23428US | SERVERFORGE - ServerForge LLC | 1.3K | 324 | 14 |
| AS399587US | NODERINGS-AS - NodeRings LLC | 1.3K | 4.1K | 4 |
| AS26197US | HIGHJUMPSOFTWARE - Korber Supply Chain US, Inc. | 1.3K | — | 5 |
| AS40705US | LAWARD-NET - LA WARD COMMUNICATIONS, INC. | 1.3K | — | 4 |
| AS17095US | BUILDBUDDY-01 - BuildBuddy | 1.3K | — | 5 |
| AS31892US | FLP-MSA - Forever Living Products | 1.3K | — | 4 |
| AS16550US | GOOGLE-PRIVATE-CLOUD - Google LLC | 1.3K | — | 5 |
| AS40437US | ACESPOWERMARKETING-INDY-AS - ACES Power Marketing | 1.3K | — | 4 |
| AS397753US | EAST-CREEK-NETWORKS-FL-001 - East Creek Networks | 1.3K | — | 2 |
| AS36495US | HEADEND - Esparto Broadband Inc | 1.3K | — | 4 |
| AS153595US | CITIGROUPINC-AS-AP - Citigroup Inc. | 1.3K | — | 5 |
| AS394130US | STEALTHBYTE - StealthByte Network LLC | 1.3K | — | 4 |
| AS393674US | DEACONESSHOSPITAL - DEACONESS HOSPITAL, Inc. | 1.3K | — | 5 |
| AS36162US | CONCERGENT-LLC - CONCERGENT, LLC | 1.3K | — | 2 |
| AS27349US | DNI-4305 - Definitive Networks, Inc. | 1.3K | — | 5 |
| AS40464US | ECLIPSENET - Eclipse Networks, Inc. | 1.3K | — | 5 |
| AS30228US | TEVA-NA - Teva Pharmaceuticals USA, INC | 1.3K | — | 4 |
| AS18673US | CFP-ASN - Casey Family Programs | 1.3K | — | 5 |
| AS40860US | WBIA-1-40860 - Word and Brown Insurance Administrators, Inc | 1.3K | — | 2 |
| AS46788US | IMSD-AS1 - Milwaukee County Government | 1.3K | — | 2 |
| AS401141US | NY-DC - EASTERN BANK | 1.3K | — | 5 |
| AS35968US | TGNA-WUSA - TEGNA Inc. | 1.3K | — | 5 |
| AS13820US | VACARES - Vacares LLC | 1.3K | 1 | 6 |
| AS46323US | TELEBROAD - Telebroad LLC | 1.3K | 1 | 6 |
| AS27233US | AS27233 - Ascena | 1.3K | — | 2 |
| AS396842US | RURALNET - RuralNET | 1.3K | 4.1K | 3 |
| AS26840US | ABG - Advanced Business Group, LLC | 1.3K | — | 4 |
| AS398200US | JTN-COMMUNICATIONS - JTN Communications, LLC | 1.3K | — | 4 |
| AS214150US | NET-PRISM Prism Cloud LLC | 1.3K | — | 5 |
| AS6401US | ZAYO-CAN-6401 - Zayo Bandwidth | 1.3K | — | 5 |
| AS32544US | FOTOKEM-INDUSTRIES - FotoKem Industries, Inc | 1.3K | — | 2 |
| AS13481US | AMS-AGD-PR - HEWLETT PACKARD ENTERPRISE COMPANY | 1.3K | — | 2 |
| AS401043US | MJFVENTURES - MJF Ventures LLC | 1.3K | — | 4 |
| AS393880US | HAL - Hawaiian Airlines | 1.3K | — | 5 |
| AS17289US | USG-PROD-WEST01 - ULTIMATE SOFTWARE GROUP | 1.3K | — | 2 |
| AS215225US | WebhostingFSI Webhosting FSI LLC | 1.3K | — | 5 |