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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 2.3K |
| 192.5K |
| 56 |
| AS35935US | POL3-1 - Polarity3 Consulting | 2.3K | 65.5K | 3 |
| AS397151US | DC2-AS - Trans Union, LLC | 2.3K | — | 5 |
| AS28852US | AERIS-AS Aeris Communications, INC. | 2.3K | 8.2K | 16 |
| AS1821US | NETWORKINV-AS1 - Network Innovations Inc. | 2.3K | — | 9 |
| AS53361US | PACKET-FORENSICS - Packet Forensics | 2.3K | — | 4 |
| AS395576US | WLF - West Liberty Foods | 2.3K | — | 2 |
| AS13745US | VENTUSNETWORKS - Ventus Networks, LLC | 2.3K | — | 7 |
| AS27018US | WAGEWORKS - WAGEWORKS, Inc. | 2.3K | — | 2 |
| AS399250US | NAMEHERO-KCDC - Name Hero, LLC | 2.3K | — | 9 |
| AS6951US | CREDITCALL-NETWORKS - CreditCall Corporation | 2.3K | — | 6 |
| AS30022US | GIA-CARLSBAD - Gemological Institute of America | 2.3K | — | 2 |
| AS40088US | WESTLAKE-CHEMICAL-CORPORATION - Westlake Chemical Corporation | 2.3K | — | 6 |
| AS17044US | IPGAGENCY - THE INTERPUBLIC GROUP OF COMPANIES, INC. | 2.3K | — | 9 |
| AS395743US | STATIC1 - Static 1 LLC | 2.3K | — | 9 |
| AS395963US | WCAN - WCAN | 2.3K | — | 8 |
| AS40526US | THE-GAP-INC - Gap, Inc. Direct | 2.3K | — | 6 |
| AS46617US | WEBMD-IDC2-AS - WebMD, LLC | 2.3K | — | 2 |
| AS26735US | MLGW - Memphis Light, Gas & Water | 2.3K | — | 6 |
| AS14418US | DTCC-AS1 - Depository Trust & Clearing Corporation | 2.3K | — | 9 |
| AS398035US | SKYNET-COMMUNICATIONS - SkyNet Communications LLC | 2.3K | — | 9 |
| AS394144US | LTYCONNECT - LTY CONNECT | 2.3K | 131.1K | 9 |
| AS33127US | ISCORP-MEQUON - Integrated Systems Corp | 2.3K | 512 | 11 |
| AS15284US | DSC - Digital Service Consultants, Inc. | 2.3K | — | 2 |
| AS32326US | IDEMIA-IDENTITY-AND-SECURITY-USA-LLC - Idemia Civil Identity NA LLC | 2.3K | — | 9 |
| AS397672US | AS-WYOMINGWIRELESS - Wyoming Wireless Internet | 2.3K | 4.1K | 9 |
| AS400816US | STUPP-FIBER - Stupp Fiber, LLC | 2.3K | 65.5K | 7 |
| AS5182US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 2.3K | — | 9 |
| AS399804US | HOSTODO - Hostodo | 2.3K | 5 | 14 |
| AS32779US | SMART-CITY-GBCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 2.3K | — | 3 |
| AS27557US | AS27557 - Catalina Broadband Solutions, LLC | 2.3K | — | 7 |
| AS399917US | SEAMLESS-FIBER-INNOVATIONS - Seamless Fiber Innovations L.L.C. | 2.3K | — | 9 |
| AS397455US | HANCOCKTEL - The Hancock Telephone Company | 2.3K | — | 2 |
| AS219160US | PRIVATASOLUTIONS-AS Privata Solutions L.L.C. | 2.3K | — | 9 |
| AS397833US | CITY-OF-VINTON-01 - City of Vinton | 2.3K | — | 2 |
| AS32002US | RACKGENIUS - RackGenius | 2.3K | 4 | 10 |
| AS13617US | SYNTAX-NC - Syntax Systems USA, LP | 2.3K | — | 6 |
| AS398479US | Z4NET-AS - Z4 Internet | 2.3K | 65.5K | 7 |
| AS36521US | HOP-ASN-1 - H.O.P. Communications DBA airHOP | 2.3K | — | 3 |
| AS14242US | AS-NETBLK-COC - City of Chandler | 2.3K | — | 2 |
| AS23436US | LDC-MTG - Logista | 2.3K | — | 6 |
| AS29903US | WRLC-AS - Washington Research Library Consortium | 2.3K | — | 9 |
| AS36706US | ATOS-CHARLOTTE - Atos IT Solutions and Services Inc | 2.3K | — | 5 |
| AS401418US | GLOBAL-PEERING-ALLIANCE - Red Team LTD | 2.3K | 5 | 14 |
| AS395565US | MIEMX - Mexico Internet Exchange | 2.3K | — | 7 |
| AS18569US | COMSPECO-NET-1 - COMMUNICATION SPECIALISTS | 2.3K | — | 6 |
| AS22326US | DRHORTON - D.R.Horton, Inc | 2.3K | — | 7 |