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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| 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 | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| — |
| — |
| 0 |
| AS397722US | BLUESTEM-GROUP-VA - BLST Holding Company LLC | — | — | 0 |
| AS397726US | MIMECAST-US-PSC - Mimecast North America Inc | — | — | 0 |
| AS397828US | UNICEF-UNHOUSE-DAKAR-1 - UNICEF | — | — | 0 |
| AS397839US | GEICO-CNCH - GEICO | — | — | 0 |
| AS397923US | RESIRACK - Resi Rack L.L.C. | — | — | 0 |
| AS397983US | MODE - Avago Technologies U.S. Inc. | — | — | 0 |
| AS398100US | AZURE-MSPEERING-03 - City National Bank | — | — | 0 |
| AS398104US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS398153US | ASPEN-SQUARE-MGMT-01 - Aspen Square Management, Inc | — | — | 0 |
| AS398163US | FIBERWEST - Fiber West | — | — | 0 |
| AS398251US | GNPS-ASN-01 - Great Neck Public Schools | — | — | 0 |
| AS398308US | WEATHERTECH - WeatherTech | — | — | 0 |
| AS398321US | VIG-01 - VigilanteATI Inc | — | — | 0 |
| AS398354US | AMERICAN-TELEPHONE-AND-TELEGRAPH - FLYERS ENERGY LLC | — | — | 0 |
| AS398386US | INTECHINVESTMENTS - INTECH INVESTMENT MANAGEMENT LLC | — | — | 0 |
| AS398501US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398509US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398522US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398606US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398608US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398623US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398640US | ALLVILLAGE-ATL - All Village Communications, LLC | — | — | 0 |
| AS398656US | MICROSOFT-AZURE-DEDICATED - Microsoft Corporation | — | — | 0 |
| AS398761US | FIDUCIARY-TRUST-COMPANY - Fiduciary Trust Company | — | — | 0 |
| AS398804US | SLC-VOXTELESYS-02 - Voxtelesys LLC | — | — | 0 |
| AS398907US | VWSD-MS - Vicksburg Warren School District | — | — | 0 |
| AS398920US | LEIDOS-OCI-AS - Leidos, Inc. | — | — | 0 |
| AS398961US | MS-ASL - Microsoft Corporation | — | — | 0 |
| AS399019US | PFCTA - Perfecta Federal LLC | — | — | 0 |
| AS399048US | PSINAP-1 - Softinco Software LLC | — | — | 0 |
| AS399104US | CNVR-APAC - Conversant, LLC | — | — | 0 |
| AS399146US | SLNG-AS - Sempra Global | — | — | 0 |
| AS399151US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399155US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399158US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399161US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399166US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399169US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399170US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399312US | FRONTIER-CORP - Frontier Networks Corp | — | — | 0 |
| AS399375US | MAYA NETWORK LTD - MAYA NETWORK LTD | — | — | 0 |
| AS399397US | BLOCK-NEW - Thomas Jefferson Foundation, Inc. | — | — | 0 |
| AS399535US | UPIX - UPIX NETWORKS INTERNATIONAL LLC | — | — | 0 |
| AS399572US | AS399572 - Indiana Hemophilia and Thrombosis Center | — | — | 0 |
| AS399670US | COMPUTE - HKSOFT | — | — | 0 |
| AS399706US | ASMOKC - SMG Holdings, LLC | — | — | 0 |