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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. | 211.2M | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,245 |
| 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 | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,952 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,420 |
| — |
| — |
| 0 |
| AS33399US | CWM-INTERNET - CITY OF WEST MELBOURNE | — | — | 0 |
| AS33479US | CEENTA - Charlotte Eye, Ear, Nose and Throat Associates, P.A. | — | — | 0 |
| AS33528US | AS33528 - Essendant Co. | — | — | 0 |
| AS33597US | ATLANTIC-METRO-COMMUNICATIONS-II-INC - Atlantic Metro Communications II, Inc. | — | — | 0 |
| AS33682US | WEBERHS - Weber Human Services Foundation | — | — | 0 |
| AS33708US | AS3-COLOAM - Colocation America Corporation | — | — | 0 |
| AS33744US | ANEW-TELECOM-DBA-CALL-AMERICA - CALL AMERICA INC | — | — | 0 |
| AS35859US | CULTRONSL-AS - Cultro Network Services, LLC | — | — | 0 |
| AS35870US | NAMETAG - Nametag | — | — | 0 |
| AS35897US | TAM - Tocqueville Asset Management LP | — | — | 0 |
| AS35933US | NELSON-HQ-AS - Nelson & Associates | — | — | 0 |
| AS36017US | CESL-21-ASN-36017 - Claro Enterprise Solutions, LLC | — | — | 0 |
| AS36045US | ITY-AS-36045 - City of Kansas City Missouri | — | — | 0 |
| AS36099US | GRANDRAPIDS - Fifth Third Bank | — | — | 0 |
| AS36118US | EXCLUSIVE-RESORTS - Exclusive Resorts, LLC | — | — | 0 |
| AS36150US | SUNYSCCC - SCHENECTADY COUNTY COMMUNITY COLLEGE | — | — | 0 |
| AS36203US | STELLAR-ASSOCIATION - Stellar Association, LLC | — | — | 0 |
| AS36386US | ADVANCED-TRACKING-TECHNOLOGIES-INC - Advanced Tracking Technologies, Inc. | — | — | 0 |
| AS36387US | BBIX-USA-MI - BBIX USA, INC. | — | — | 0 |
| AS36449US | INSIGHT-AS - Insight Direct USA, Inc. | — | — | 0 |
| AS36463US | ASN-STRAUSS - Martin Strauss Technologies, LLC | — | — | 0 |
| AS36584US | ARCHEO-FUTURUS - Archeo Futurus, Inc. | — | — | 0 |
| AS36611US | VISTANETINC - VISTANET INC. | — | — | 0 |
| AS36624US | GGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS36628US | LGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS36648US | AURORA - Aurora Operations, Inc. | — | — | 0 |
| AS36670US | PEAK10-FLL - Flexential Corp. | — | — | 0 |
| AS36715US | APOG-CHICAGO-COLO - Apogee Telecom Inc. | — | — | 0 |
| AS36729US | BC - Brash Concepts, Inc. | — | — | 0 |
| AS36781US | ERT - ERT | — | — | 0 |
| AS36790US | BERWICK - Breezeline | — | — | 0 |
| AS39182US | JUMPTRADING-39182-AS Jump Systems, LLC | — | — | 0 |
| AS39973US | INTERNATIONAL-FLAVORS-AND-FRAGRANCES - International Flavors & Fragrances, Inc. | — | — | 0 |
| AS40045US | AWS - Amazon.com, Inc. | — | — | 0 |
| AS40064US | AMATEUR-IX - Austin Hadley, Sole Proprietorship | — | — | 0 |
| AS40079US | NFP-INSURANCE-SERVICES-TEXAS - NATIONAL FINANCIAL PARTNERS CORP. | — | — | 0 |
| AS40103US | MAJESTIC-STEEL-USA - Majestic Steel USA, Inc. | — | — | 0 |
| AS40116US | AS-NYSDI - New York State Department of Financial Services | — | — | 0 |
| AS40131US | KITTELSON-DIGIWEST-TUCSON - KITTELSON AND ASSOCIATES, INC. | — | — | 0 |
| AS40133US | KITTELSON-DIGIWEST-BALTIMORE - KITTELSON AND ASSOCIATES, INC. | — | — | 0 |
| AS40136US | BMCM-ASN - Assured Guaranty Corp | — | — | 0 |
| AS40161US | ATL-HOSTED - Noble Systems Corporation | — | — | 0 |
| AS40290US | COMTECHNOLOGIES - Communications Technologies, Inc. | — | — | 0 |
| AS40310US | VIASAT-3 - ViaSat,Inc. | — | — | 0 |
| AS40329US | RIVIERA-RESEARCH-PARK - REH Property | — | — | 0 |
| AS40406US | ACXIOM-LR - Acxiom LLC | — | — | 0 |