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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| 95.2K |
| 2.7M |
| 381 |
| AS104US | COLORADO-AS - University of Colorado at Boulder | 95.2K | 65.7K | 25 |
| AS7152US | REDCROSS-ASN - American Red Cross | 94.5K | — | 16 |
| AS55293US | A2HOSTING - A2 Hosting, Inc. | 93.7K | — | 76 |
| AS19092US | 360NETWORKS-US - Zayo Bandwidth | 93.7K | 65.5K | 11 |
| AS5974US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 93.7K | 3 | 19 |
| AS5374US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 93.4K | — | 13 |
| AS18933US | USCC-MPLS01 - T-Mobile USA, Inc. | 93.2K | — | 14 |
| AS10297US | ENET-2 - eNET Inc. | 93.2K | 65.5K | 20 |
| AS16863US | HOMESC - Home Telephone Company, Inc. | 92.9K | 65.6K | 245 |
| AS62600US | ABOR-SUN-CORRIDOR - Arizona Board of Regents | 92.7K | 65.5K | 14 |
| AS3685US | BUFFALO-ASN - State University of New York at Buffalo | 92.4K | 1 | 10 |
| AS14114US | SAP-NIE - SAP America Inc. | 92.2K | 1 | 62 |
| AS53850US | GORILLASERVERS - GorillaServers, Inc. | 91.9K | 76K | 100 |
| AS12118US | WVU - West Virginia University | 91.6K | — | 6 |
| AS20141US | QTS-SUW1-ATL1 - Quality Technology Services, LLC | 91.4K | 32.8K | 73 |
| AS33548US | UNWIRED-NOC - Unwired Broadband, LLC | 90.9K | 1M | 21 |
| AS13796US | UCONN-ARIN - University of Connecticut | 90.6K | — | 5 |
| AS6580US | GWTC - Golden West Telecommunications Coop., Inc. | 90.4K | 65.5K | 51 |
| AS30337US | DELOITTE-US-ASN - Deloitte Services LP | 90.4K | 81 | 31 |
| AS14398US | AUTODESK - Autodesk, Inc. | 90.1K | — | 36 |
| AS46231US | WATCHCOMM-IN - Watch Communications | 89.9K | 196.6K | 25 |
| AS21547US | OXNET - FirstLight Fiber, Inc. | 89.6K | 131.1K | 60 |
| AS1856US | DISN-PILOTNET2 - RTX BBN Technologies, Inc. | 89.6K | — | 17 |
| AS32531US | FORDHAM-UNIVERSITY - Fordham University | 88.6K | — | 91 |
| AS54858US | AS-SBI - Wave Broadband | 88.6K | 213K | 57 |
| AS289US | DNIC-AS-00289 - Headquarters, USAISC | 88.3K | 2 | 12 |
| AS7743US | JPMORGAN-AS7743 - JPMorgan Chase & Co. | 88.1K | 12 | 11 |
| AS2698US | IASTATE-AS - Iowa State University of Science and Technology | 87.6K | 4.4K | 9 |
| AS26383US | ASNET - Baxet Group Inc. | 87.3K | 524.3K | 370 |
| AS11206US | FSU-AS-1 - Ferris State University | 87.3K | — | 33 |
| AS27589US | MOJOHOST - MOJOHOST | 87.3K | 131.1K | 24 |
| AS22925US | ALLIED-TELECOM - Allied Telecom Group, LLC | 87K | 65.5K | 39 |
| AS63440US | TELNYX - TELNYX LLC | 86.8K | — | 28 |
| AS13998US | SWMED - University of Texas Southwestern Medical Center | 86K | 1 | 14 |
| AS36441US | UGA-ASN - University of Georgia | 86K | — | 3 |
| AS22920US | BIAEDNET-INTERNET - U.S. Bureau of Indian Affairs | 86K | 1 | 5 |
| AS20130US | DEPAUL - Depaul University | 86K | 65.5K | 6 |
| AS14454US | SILVERSKY-INC - SilverSky, Inc. | 85.8K | — | 36 |
| AS12217US | UPS - UNITED PARCEL SERVICE | 85.8K | — | 57 |
| AS337US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 85.8K | 256 | 64 |
| AS46293US | MIDWEST-ENERGY-AND-COMMUNICATIONS - Midwest Energy & Communications | 85.8K | 65.5K | 43 |
| AS3807US | UMTNET-ASN - University of Montana | 85.8K | 256 | 30 |
| AS32592US | HT-HB32592 - Uniti Fiber Holdings Inc. | 85.8K | 65.5K | 82 |
| AS26438US | MONROE-COMMUNITY-COLLEGE - Monroe Community College | 85.8K | — | 13 |
| AS715US | WOODYNET-2 - WoodyNet, Inc. | 85.5K | 66.6K | 41 |
| AS62610US | ZEN-DPS - Zenlayer Inc | 84.7K | 3.1M | 410 |