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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) | 227.7M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 1.3K |
| 1K |
| 10 |
| AS30228US | TEVA-NA - Teva Pharmaceuticals USA, INC | 1.3K | — | 4 |
| AS35968US | TGNA-WUSA - TEGNA Inc. | 1.3K | — | 5 |
| AS35980US | GCL-01 - Good Connections, LLC | 1.3K | 18 | 23 |
| AS396908US | LAURENS-TECHNOLOGIES-INTERNET-SERVICES - Laurens Technologies Internet Services | 1.3K | 440 | 129 |
| AS394895US | HCDL-ST-LOUIS-DATA-CENTER - H5 Data Centers | 1.3K | 256 | 6 |
| AS54380US | THOUGHTWAVE - ThoughtWave Technologies, Inc. | 1.3K | 65.6K | 14 |
| AS11897US | TULSA-COMMUNITY-COLLEGE - Tulsa Community College | 1.3K | — | 5 |
| AS22624US | FREMONTBANK - Fremont Bank | 1.3K | — | 5 |
| AS18527US | HAGC-ASN - UC Health, LLC | 1.3K | — | 5 |
| AS401043US | MJFVENTURES - MJF Ventures LLC | 1.3K | — | 4 |
| AS19864US | HFASERVICES - HFA Specialty Assets LLC | 1.3K | — | 3 |
| AS11480US | CITY-SIOUXFALLS - City of Sioux Falls | 1.3K | — | 2 |
| AS14192US | CARTHA-ASN - Carthage College | 1.3K | — | 4 |
| AS17289US | USG-PROD-WEST01 - ULTIMATE SOFTWARE GROUP | 1.3K | — | 2 |
| AS40437US | ACESPOWERMARKETING-INDY-AS - ACES Power Marketing | 1.3K | — | 4 |
| AS401430US | POND-IOT-01 - POND IOT | 1.3K | 257 | 6 |
| AS40705US | LAWARD-NET - LA WARD COMMUNICATIONS, INC. | 1.3K | — | 4 |
| AS394457US | OMNIMODE - OMNI-MODE TRADE LLC | 1.3K | 65.5K | 3 |
| AS31916US | PULSAR67 - ReviveHost | 1.3K | 256 | 3 |
| AS14850US | PACE-SUBURBAN-BUS - PACE, the suburban bus division of the Region Transportation Authority | 1.3K | — | 2 |
| AS11185US | DREAMHACK - DreamHack Inc | 1.3K | — | 2 |
| AS393674US | DEACONESSHOSPITAL - DEACONESS HOSPITAL, Inc. | 1.3K | — | 5 |
| AS35962US | MSA-ASN - Management Science Associates, Inc. | 1.3K | 65.5K | 6 |
| AS214150US | NET-PRISM Prism Cloud LLC | 1.3K | — | 5 |
| AS27239US | 101VOICE - 101VOICE | 1.3K | — | 4 |
| AS36495US | HEADEND - Esparto Broadband Inc | 1.3K | — | 4 |
| AS399522US | TP - The Producers, Inc. | 1.3K | 256 | 5 |
| AS190US | DNIC-AS-00190 - Navy Network Information Center (NNIC) | 1.3K | — | 5 |
| AS46484US | TRELLIXANY - Trellix | 1.3K | — | 2 |
| AS30067US | AACG-AS - Anne Arundel County, Maryland | 1.3K | — | 5 |
| AS5877US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 1.3K | — | 5 |
| AS393972US | CMECCONNECT - Coles Moultrie Electric Cooperative | 1.3K | — | 4 |
| AS14862US | OCEANEERING - Oceaneering International, Inc. | 1.3K | — | 5 |
| AS55291US | HARRIS-COUNTY-AS - Harris County | 1.3K | — | 2 |
| AS54761US | ARIN-SAMBREEL-SVCS - Sambreel Services, LLC | 1.3K | — | 5 |
| AS14469US | SWISHMAIL - Swishmail | 1.3K | 4.1K | 3 |
| AS401222US | BLOCKAGENDA - Block Agenda LLC | 1.3K | 4.1K | 3 |
| AS36299US | CAPSTONECO-1 - Capstone Investment Advisors LLC | 1.3K | — | 4 |
| AS54106US | 8WIRE - 8-Wire LLC | 1.3K | — | 5 |
| AS27349US | DNI-4305 - Definitive Networks, Inc. | 1.3K | — | 5 |
| AS17095US | BUILDBUDDY-01 - BuildBuddy | 1.3K | — | 5 |
| AS401993US | PROVOCATIVE - Provocative Science Holdings, Inc. | 1.3K | — | 4 |
| AS23428US | SERVERFORGE - ServerForge LLC | 1.3K | 324 | 14 |
| AS399185US | AMS-GA-ALF - HEWLETT PACKARD ENTERPRISE COMPANY | 1.3K | — | 2 |
| AS13448US | WEBSENSE - Forcepoint, LLC | 1.3K | 1 | 5 |
| AS36162US | CONCERGENT-LLC - CONCERGENT, LLC | 1.3K | — | 2 |