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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,289 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,731 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,972 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS401501US | SHAREINTRA01 - ARCWOOD ENVIRONMENTAL, INC. | — | — | 0 |
| AS401676US | OASIS-NETWORKS - OASIS NETWORKS | — | — | 0 |
| AS401698US | NJCL-AS - NORTH JERSEY COMMUNICATIONS LLC | — | — | 0 |
| AS401699US | OIZ - Oiz Networks LLC | — | — | 0 |
| AS401702US | LEKT-NET - Lower Elwha Klallam Tribe | — | — | 0 |
| AS401789US | DUMPSTER - Dumpster Fire Systems LLC | — | — | 0 |
| AS401792US | PAHO - Pan American Health Organization | — | — | 0 |
| AS401848US | ELYSIAN-NETWORKS - Elysian Networks LLC | — | — | 0 |
| AS401849US | HYPERION-NETWORK - Hyperion Telecom LLC | — | — | 0 |
| AS401880US | KESHIA-SERVICES-FINANCIAL-SYSTEMS - Keshia Services Inc. | — | — | 0 |
| AS401940US | HSTCUST - H.S.T. SYSTEMS AND TECHNOLOGY, INC. | — | — | 0 |
| AS401945US | EIDC-NET-LLC - EIDC.NET LLC | — | — | 0 |
| AS402025US | WCS-WHOLE-150 - WCS | — | — | 0 |
| AS402054US | BCR - Brass City Residences Inc. | — | — | 0 |
| AS402071US | GLOWNOURISH - GlowNourish | — | — | 0 |
| AS402085US | AYIT-02 - Aja security | — | — | 0 |
| AS402124US | MUS-BGP-ROUTE - Milsoft Utility Solutions, Inc. | — | — | 0 |
| AS402181US | RIFTHOSTING-LLC - Rift Hosting, LLC | — | — | 0 |
| AS402203US | RAC - RAC Network LLC | — | — | 0 |
| AS402225US | LUMEXAIMAGING-ASN-02 - Lumexa Imaging | — | — | 0 |
| AS402228US | AFN-CLD - Arctic Fox Networks Inc | — | — | 0 |
| AS402241US | SECUREINDUSTRIES-DEFENSX - Secure Industries, Inc. | — | — | 0 |
| AS402269US | AS-1 - Abysius Inc. | — | — | 0 |
| AS402304US | CALCAS-PID - California Casualty Management Company | — | — | 0 |
| AS402313US | SPIRAVOX - Spiravox LLC | — | — | 0 |
| AS402338US | BRINKLINK - BrinkLink | — | — | 0 |
| AS402401US | VO - Vision | — | — | 0 |
| AS402431US | SYMMETRY-INVESTMENTS-01 - Symmetry | — | — | 0 |
| AS402432US | OBSIDIAN - Obsidian | — | — | 0 |
| AS402470US | AUGUSTA - Technical | — | — | 0 |
| AS402482US | ABTS-INTERNET2 - American | — | — | 0 |
| AS402512US | ONE-CLICK-TELECOM - 1 | — | — | 0 |
| AS402527US | ASTRALMYST-AS-1 - Astralmyst | — | — | 0 |
| AS402536US | NETZR - NETZR | — | — | 0 |
| AS402560US | NIKO-ANDREO - NicktronicIT | — | — | 0 |
| AS36US | EGP-TESTOR - SRI International | — | — | 0 |
| AS142US | DNIC-AS-00142 - Headquarters, USAISC | — | — | 0 |
| AS146US | HQEIS-AS - Air Force Systems Networking | — | — | 0 |
| AS215US | DNIC-AS-00215 - Headquarters, USAISC | — | — | 0 |
| AS274US | AINET-AS274 - American Information Network | — | — | 0 |
| AS402US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS415US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS416US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS433US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS460US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS484US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |