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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| — |
| 0 |
| AS198526US | GREAT-SCOTT-CONSULTING ERIN ALLEN SCOTT trading as Great Scott Consulting Services | — | 1 | 1 |
| AS402383US | KUMREZ - Kumrez | — | — | 0 |
| AS401857US | BRIGHT-MIND-NETWORK - BrightMind Solutions LLC | — | — | 0 |
| AS400144US | GREENSKY-01 - GreenSky, LLC | — | — | 0 |
| AS401671US | ACCESSPARKS-POPS - ACCESSPARKS LLC | — | 78 | 39 |
| AS402112US | TABAR-1 - Tabarruk | — | — | 0 |
| AS402034US | WP1 - Winnr | — | — | 0 |
| AS402093US | UPHOST - DigitalHost LLC | — | — | 0 |
| AS398046US | ZIMMERBIOMET-INET - Zimmer Biomet Holdings Inc | — | — | 0 |
| AS397950US | TRIN-01 - WiseTech Global | — | — | 0 |
| AS397785US | TISTLASN01 - Tortoise Capital Advisors, L.L.C. | — | — | 0 |
| AS5207US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS3754US | NYSERNET3-AS - NYSERNet | — | 1 | 1 |
| AS397240US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS396518US | BUILDJET - BUILDJET, INC. | — | 1 | 1 |
| AS397235US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS396817US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS5712US | RCN-AS4 - RCN | — | — | 0 |
| AS4312US | FYI - FYI Networks | — | — | 0 |
| AS394082US | GOOGLE-PEER - rootcloud LLC | — | 2.6M | 5 |
| AS4207US | NET-INTRNET - Allied Access Inc. | — | — | 0 |
| AS6043US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 1 | 1 |
| AS4490US | EMTF-LAK - Air Force Systems Networking | — | — | 0 |
| AS10941US | TECHCOM-1 - Genuine Telecom | — | 256 | 1 |
| AS395556US | TRI-CORP - Trident Seafoods Corporation | — | 4 | 4 |
| AS397958US | SUNOAKI-NET-PREMIUM - Sunoaki Network LLC | — | 2 | 2 |
| AS4032US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS197346US | SYLANT-ASN Sylant LLC | — | 257 | 2 |
| AS5870US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS402695US | SPUZE - SPUZE | — | 256 | 1 |
| AS4219US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | — | 0 |
| AS202902US | ANTARES-NETWORK Nathen Goldsborough | — | 1 | 1 |
| AS200502US | DMITRY-ILYEVSKIY DMITRY ILYEVSKIY | — | — | 0 |
| AS402008US | L7CORE-L7AS01 - L7CORE, LLC | — | 1 | 1 |
| AS5700US | XL-NET - MISHA, Inc. | — | — | 0 |
| AS395841US | TAMCLOUD - tamCloud, Inc. | — | 4.1K | 1 |
| AS5373US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS207071US | FOX-NETWORK-AS Joshua Jones | — | 3 | 3 |
| AS6641US | SPORTSLINE - SportsLine USA Inc. | — | — | 0 |
| AS11263US | BELLTOWER - Bell Tower Integration, Inc. | — | 2 | 2 |
| AS262US | VERIO - NTT America, Inc. | — | 1 | 1 |
| AS401389US | OWO-AS - OwO Network, LLC | — | 1 | 1 |
| AS5679US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS21662US | ONGLOBIX - OnGlobix, LLC | — | 65.5K | 1 |
| AS401808US | CHELAM - Chelam, Inc. | — | — | 0 |
| AS959US | OHANACAST - OHANACRAFT, LLC | — | 1 | 1 |