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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 |
| 1K |
| — |
| 3 |
| AS13377US | RBB-ASN-1 - Rogue Broadband | 1K | 65.5K | 2 |
| AS394342US | AMR-NET - Applied Medical Resources Corporation | 1K | — | 4 |
| AS12070US | ANYCAST-01 - ANYCAST LLC | 1K | — | 4 |
| AS3704US | ISPNET-AS - isp.net | 1K | — | 1 |
| AS401526US | AIRPLEXUS - Airplexus, Inc. | 1K | — | 1 |
| AS17304US | VWC-NET - Vegas WiFi | 1K | — | 4 |
| AS36344US | ADVAN-CAST - Virtuozzo Inc. | 1K | — | 4 |
| AS16968US | AURELIA-TEL - Aurelia Telecom Systems LLC | 1K | — | 3 |
| AS4356US | EPICGA-HQ-AS - Epic Games Inc. | 1K | — | 1 |
| AS53276US | TUDOR - Tudor Investment Corporation | 1K | — | 4 |
| AS398284US | LAT-US-01 - Lufthansa Aviation Training USA, Inc | 1K | — | 4 |
| AS53699US | PANAMAX-ASN - Panamax Inc | 1K | — | 4 |
| AS40429US | QISF - SETEL | 1K | — | 1 |
| AS1236US | GDIT-AS2 - General Dynamics Information Technology, Inc. | 1K | — | 4 |
| AS14893US | CHS-MI - Covenant Medical Center, Inc. | 1K | — | 1 |
| AS401800US | ILSOS - Illinois Secretary of State | 1K | — | 1 |
| AS23494US | HSC - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | 1K | — | 4 |
| AS54035US | DAVEY-HOLDINGS-LLC - Davey Holdings LLC | 1K | — | 4 |
| AS393455US | MNWIFI - Minnesota WiFi | 1K | — | 1 |
| AS46735US | FARR-FIN - Certigo, Inc | 1K | — | 1 |
| AS395872US | CITYOFGASTONIANC-1 - City of Gastonia | 1K | — | 1 |
| AS398748US | ONECORP-USA - oneCorp USA, Inc. | 1K | 65.5K | 5 |
| AS397793US | ASN-SWBNO-01 - Sewerage and Water Board of New Orleans | 1K | — | 2 |
| AS397596US | ADP-USDC01-01 - Assured DP | 1K | — | 4 |
| AS15292US | PIDOXA-RACINE - PIN Business Network, Inc. | 1K | 1 | 5 |
| AS35865US | COREANDMAIN - Core & Main | 1K | — | 3 |
| AS53249US | LAWA-AS - Los Angeles World Airport | 1K | — | 3 |
| AS400719US | RJN-SERVICES - RJN Services | 1K | 4 | 8 |
| AS11826US | RISS2 - Regional Information Sharing Systems | 1K | — | 3 |
| AS11746US | WAGGENER-EDSTROM - Waggener Edstrom Worldwide, Inc. | 1K | — | 4 |
| AS11439US | VERTEXCORE-NET - VertexCore LLC | 1K | — | 3 |
| AS32983US | CORELIGHTNET-GOVCLOUD - Corelight, Inc. | 1K | 4 | 8 |
| AS402991US | SN75-US - SiteTurn | 1K | — | 1 |
| AS30166US | EX3IN - Ex3 | 1K | — | 1 |
| AS1790US | COGENT-1790 - Cogent Communications, LLC | 1K | — | 4 |
| AS398900US | RENCI-FABRIC - University of North Carolina at Chapel Hill | 1K | 4.1K | 2 |
| AS400115US | TREEHOUSE - Treehouse Broadband, LLC | 1K | 65.5K | 4 |
| AS53383US | PROMISE-REGIONAL-MEDICAL-CENTER---HUTCHINSON-INC - Hutchinson Regional Medical Center | 1K | — | 1 |
| AS62574US | DMBGP - Data Management | 1K | — | 2 |
| AS26820US | HERFF-JONES - Herff Jones | 1K | — | 4 |
| AS396971US | SLIC-ASN-4 - Slic Network Solutions, Inc | 1K | — | 4 |
| AS395220US | LCCA-ASN - Life Care Centers of America, Inc. | 1K | — | 4 |
| AS14964US | AAPINT - Advance Auto Parts, Inc. | 1K | — | 4 |
| AS33257US | WLC - Expert Service Providers LLC | 1K | — | 4 |
| AS26409US | LUCID-ASN - Lucid USA, Inc. | 1K | — | 3 |
| AS62872US | CBTS-AS-DC2 - Cincinnati Bell Technology Solutions | 1K | — | 1 |