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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,094 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,247 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,709 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,959 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,423 |
| — |
| — |
| 0 |
| AS32211US | CLOUDSINGULARITY-US - Tech Futures Interactive Inc. | — | — | 0 |
| AS32223US | EVBNET - Eventbrite Inc. | — | — | 0 |
| AS32248US | AETHERPAW - AetherPaw LLC | — | — | 0 |
| AS32249US | TECHVAULT-VT - TECH VAULT, INC. | — | — | 0 |
| AS32341US | HIMSS - HIMSS | — | — | 0 |
| AS32349US | CI-GROUP-AS - CI-GROUP | — | — | 0 |
| AS32420US | APTILO-US - Aptilo Networks Inc. | — | — | 0 |
| AS32422US | MOVAL - City of Moreno Valley | — | — | 0 |
| AS32423US | MONTROSE-REGIONAL-HOSPITAL - Montrose Memorial Hospital | — | — | 0 |
| AS32516US | IAM - Impala Asset Management LLC | — | — | 0 |
| AS32529US | CGI-FEDERAL-ASN-1 - CGI Federal | — | — | 0 |
| AS32597US | AS-NEWWAVENETCORP - NEW WAVE NET CORPORATION | — | — | 0 |
| AS32633US | CANTEXINC - CANTEX INC. | — | — | 0 |
| AS32656US | NUVEEN-NET01 - Teachers Insurance and Annuity Association of America | — | — | 0 |
| AS32722US | BTLAW - Barnes & Thornburg | — | — | 0 |
| AS32770US | CITYOF-294-AS - CITY OF PLEASANTON | — | — | 0 |
| AS32821US | AS-NFSN - NearlyFreeSpeech.NET | — | — | 0 |
| AS32835US | TEXAS-NET - Valero Corporate Services | — | — | 0 |
| AS32896US | MOTECH-CA - MoTech | — | — | 0 |
| AS32901US | CGNET-INTERNAP - CGNET Services International, Inc. | — | — | 0 |
| AS32960US | VONAGE-06 - Vonage Holdings, Inc. | — | — | 0 |
| AS32986US | KEYDEV - Key Developments, LLC | — | — | 0 |
| AS33036US | SERVER-DRIVES-INC-ASN-33036 - Server Drives | — | — | 0 |
| AS33057US | BLOOMER-BROADBAND - Bloomer Broadband | — | — | 0 |
| AS33079US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS33080US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS33119US | NETACTUATE - NetActuate, Inc | — | — | 0 |
| AS33184US | MEDDATA-SEATTLE - Med-Data, Inc. | — | — | 0 |
| AS33190US | KAZ - KAZ INCORPORATED | — | — | 0 |
| AS33195US | ROXIO - Rovi Corporation | — | — | 0 |
| AS33268US | TRUST - TRUST, LLC | — | — | 0 |
| AS33330US | CLOUDRADIUM-ASN - CloudRadium L.L.C | — | — | 0 |
| AS33364US | CHARTER-33364-NA - Charter Communications LLC | — | — | 0 |
| AS33369US | LIFEWATCH-SERVICES - LIFEWATCH SERVICES INC. | — | — | 0 |
| AS33505US | SIMPLEXINVESTMENTS - Simplex Investments, LLC | — | — | 0 |
| AS33564US | CONRESPS - Continental Resources | — | — | 0 |
| AS33626US | MEX-IX-ELP-ROUTE-COLLECTOR - McAllen Data Center, LLC | — | — | 0 |
| AS33641US | HEALTHLOGIC-SYSTEMS-CORPORATION - Healthlogic Systems Corporation | — | — | 0 |
| AS33663US | CMCS - Comcast Cable Communications, LLC | — | — | 0 |
| AS33678US | NETWORTH-SERVICES - NetWorth Services, Inc | — | — | 0 |
| AS33697US | THEBOE-33697 - The Boeing Company | — | — | 0 |
| AS33733US | CASTRO-TELECOM - CASTRO TELECOM LLC | — | — | 0 |
| AS33757US | CIRCUITID - Circuit ID | — | — | 0 |
| AS35904US | APOLLO-GROUP-INC - University of Phoenix | — | — | 0 |
| AS35946US | ADEPTRA-INCORPORATED-MULTI-HOMING-AS - Fair Isaac Corporation | — | — | 0 |
| AS36043US | STARRTECHASN - Starr Computer Solutions, Inc. | — | — | 0 |