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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 |
| — |
| — |
| 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 |
| AS402313US | SPIRAVOX - Spiravox LLC | — | — | 0 |
| AS402338US | BRINKLINK - BrinkLink | — | — | 0 |
| AS402401US | VO - Vision | — | — | 0 |
| AS402432US | OBSIDIAN - Obsidian | — | — | 0 |
| AS402470US | AUGUSTA - Technical | — | — | 0 |
| AS402512US | ONE-CLICK-TELECOM - 1 | — | — | 0 |
| AS402527US | ASTRALMYST-AS-1 - Astralmyst | — | — | 0 |
| AS402560US | NIKO-ANDREO - NicktronicIT | — | — | 0 |
| AS402643US | CBL-177 - CloudNest | — | — | 0 |
| AS402698US | MINUTE - Minute | — | — | 0 |
| AS402728US | AS-TPE - TAIPEI101 | — | — | 0 |
| AS402780US | KYFIX - KYFIX | — | — | 0 |
| AS402819US | SMAA-INTERNET-01 - Sarasota | — | — | 0 |
| AS402848US | PHOSPHOR-01 - Phosphor | — | — | 0 |
| AS402880US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402894US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402906US | REVISE-CLOTHING-01 - REVISE | — | — | 0 |
| AS402929US | FIGUREAI - Figure | — | — | 0 |
| AS402951US | DOUGLAS-TELECOM - Douglas | — | — | 0 |
| AS402987US | IPBGP - IPBGP | — | — | 0 |
| AS402992US | WORTHE-CORE - The | — | — | 0 |
| AS403021US | TSIS-SOVEREIGN - Tashri | — | — | 0 |
| AS403048US | WITTCO - WITTCO | — | — | 0 |
| AS403066US | INVISIBLE-INTERNET - Invisible-Internet, | — | — | 0 |
| AS403069US | DEVVENTURE - AutoSweet | — | — | 0 |
| AS403091US | RECORDED - Recorded | — | — | 0 |
| AS403106US | KIRBY-MEDICAL-CENTER - Kirby | — | — | 0 |
| AS403118US | CITY-OF-ANTIOCH - City | — | — | 0 |
| AS403132US | XKRME-US - Xkrme | — | — | 0 |
| AS403135US | ARGENTUM-AI - Argentum-AI | — | — | 0 |
| AS403188US | HBG-DATA - HBG | — | — | 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 |