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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 |
| US-SIGNAL-OR01 - US Signal Company, L.L.C. |
| 2.3K |
| 256 |
| 3 |
| AS29903US | WRLC-AS - Washington Research Library Consortium | 2.3K | — | 9 |
| AS40526US | THE-GAP-INC - Gap, Inc. Direct | 2.3K | — | 6 |
| AS400212US | VERGETEL-GROUP-LLC - VergeTel Group LLC | 2.3K | 4.1K | 9 |
| AS394144US | LTYCONNECT - LTY CONNECT | 2.3K | 131.1K | 9 |
| AS6951US | CREDITCALL-NETWORKS - CreditCall Corporation | 2.3K | — | 6 |
| AS13745US | VENTUSNETWORKS - Ventus Networks, LLC | 2.3K | — | 7 |
| AS399250US | NAMEHERO-KCDC - Name Hero, LLC | 2.3K | — | 9 |
| AS17267US | VGI-TECHNOLOGY - VGI Technology, Inc. | 2.3K | 65.8K | 11 |
| AS40764US | DNA-DKLB - Digital Network Access Communications, INC | 2.3K | — | 2 |
| AS17044US | IPGAGENCY - THE INTERPUBLIC GROUP OF COMPANIES, INC. | 2.3K | — | 9 |
| AS26735US | MLGW - Memphis Light, Gas & Water | 2.3K | — | 6 |
| AS28852US | AERIS-AS Aeris Communications, INC. | 2.3K | 8.2K | 16 |
| AS35935US | POL3-1 - Polarity3 Consulting | 2.3K | 65.5K | 3 |
| AS5108US | PASADENA-ASN - City of Pasadena | 2.3K | — | 6 |
| AS1014US | GLOBAL-ISP - NetLab Global | 2.3K | — | 9 |
| AS16910US | FARM-CREDIT - Farm Credit Financial Partners, Inc. | 2.3K | — | 9 |
| AS40508US | MID-AMERICA-NAZARENE-UNIVERSITY - Mid America Nazarene University | 2.3K | — | 2 |
| AS400384US | HOSTINGS-HOUSE-US - Hostings House | 2.3K | — | 6 |
| AS14814US | VSE14814 - V.S. Enterprises LTD | 2.3K | — | 2 |
| AS5182US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 2.3K | — | 9 |
| AS395963US | WCAN - WCAN | 2.3K | — | 8 |
| AS398479US | Z4NET-AS - Z4 Internet | 2.3K | 65.5K | 7 |
| AS397833US | CITY-OF-VINTON-01 - City of Vinton | 2.3K | — | 2 |
| AS395019US | TCSSLLC-ASN - TCSS | 2.3K | — | 3 |
| AS400816US | STUPP-FIBER - Stupp Fiber, LLC | 2.3K | 65.5K | 7 |
| AS395743US | STATIC1 - Static 1 LLC | 2.3K | — | 9 |
| AS1821US | NETWORKINV-AS1 - Network Innovations Inc. | 2.3K | — | 9 |
| AS33127US | ISCORP-MEQUON - Integrated Systems Corp | 2.3K | 512 | 11 |
| AS14242US | AS-NETBLK-COC - City of Chandler | 2.3K | — | 2 |
| AS27557US | AS27557 - Catalina Broadband Solutions, LLC | 2.3K | — | 7 |
| AS10961US | BGP-AS - Boston GigaPoP | 2.3K | — | 2 |
| AS395091US | PLEXUS - Plexus Corp. | 2.3K | — | 2 |
| AS33455US | NORTHWESTERN-COLLEGE-STPAUL-MN - University of Northwestern | 2.3K | — | 5 |
| AS395415US | QT-SEC - Quiktrip Corporation | 2.3K | — | 7 |
| AS20298US | WAVERLY-COMMUNICATIONS-UTILITY - Waverly Utilities | 2.3K | 65.5K | 4 |
| AS218383US | ORG-TWL10-AS TELEMERIDIAN WAVES LLC | 2.3K | — | 9 |
| AS23436US | LDC-MTG - Logista | 2.3K | — | 6 |
| AS63442US | SERVERFARM - ServerFarm Realty | 2.3K | 1 | 7 |
| AS36706US | ATOS-CHARLOTTE - Atos IT Solutions and Services Inc | 2.3K | — | 5 |
| AS19804US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | 2.3K | — | 9 |
| AS53361US | PACKET-FORENSICS - Packet Forensics | 2.3K | — | 4 |
| AS397151US | DC2-AS - Trans Union, LLC | 2.3K | — | 5 |
| AS12161US | DAO - dao Consulting, LLC | 2.3K | 16 | 7 |
| AS7954US | IMMENSE-NETWORKS - Immense Networks, LLC | 2.3K | 65.5K | 5 |
| AS14418US | DTCC-AS1 - Depository Trust & Clearing Corporation | 2.3K | — | 9 |
| AS397455US | HANCOCKTEL - The Hancock Telephone Company | 2.3K | — | 2 |