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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| — |
| 0 |
| AS401946US | MESATRONIX - Mesatronix LLC | — | — | 0 |
| AS401989US | GAYLORD CONSULTING - Gaylord Consulting | — | — | 0 |
| AS402005US | CORELOCATED-01 - Core Located Global LLC | — | — | 0 |
| AS402029US | BAYOUCABLE - Bayou Cable, Inc. | — | — | 0 |
| AS402048US | PCCUA-DEWITT-AS - Phillips Community College of the University of Arkansas | — | — | 0 |
| AS402052US | DIT - Dynamic Internet Technology Inc. | — | — | 0 |
| AS402080US | BGCORP - Backbone Group Corporation | — | — | 0 |
| AS402140US | IMC-GLOBAL - IMC Markets | — | — | 0 |
| AS402209US | DEEPINTENT - DeepIntent, Inc. | — | — | 0 |
| AS402291US | OPTICSTREAM-AS - OPTICSTREAM COMMUNICATIONS LLC | — | — | 0 |
| AS402300US | PLATTE-COUNTY-WY-01 - Platte County Wyoming | — | — | 0 |
| AS402341US | HILL - Hill | — | — | 0 |
| AS402362US | NEW-BALANCE-ATHLETICS - New | — | — | 0 |
| AS402466US | BLUEFIBER-01 - Blue | — | — | 0 |
| AS402471US | OMC-BGP-ASN-PRI - Old | — | — | 0 |
| AS402504US | AS-AURORA-HOSTING - Ajax | — | — | 0 |
| AS402508US | AIRBIT - Airbit | — | — | 0 |
| AS402545US | UMC-MAIN-ASN - University | — | — | 0 |
| AS402601US | PENLIGHT - Penlight | — | — | 0 |
| AS402605US | TSFT - TSFT | — | — | 0 |
| AS402617US | JUMPSERVERN - Jumpservern | — | — | 0 |
| AS402670US | SCITIX-USA-01 - ScitiX | — | — | 0 |
| AS402713US | PCNA-ASN-01 - PCNA | — | — | 0 |
| AS402747US | HL-ASN - Health100 | — | — | 0 |
| AS402820US | TECHSTACKING - Techstacking | — | — | 0 |
| AS402888US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402961US | COMET-COMPUTE - Comet | — | — | 0 |
| AS402988US | PRTI - Patriot | — | — | 0 |
| AS402990US | QUICVM-01 - QuicVM | — | — | 0 |
| AS403009US | LOREM-IPSUM - Lorem | — | — | 0 |
| AS403015US | WIRESCOPE - Wirescope, | — | — | 0 |
| AS403020US | HANOVER-AS - Hanover | — | — | 0 |
| AS403027US | COVERTHART-AS-403027 - CovertHart | — | — | 0 |
| AS10US | CSNET-EXT-AS - CSNET Coordination and Information Center (CSNET-CIC) | — | — | 0 |
| AS181US | MERIT-AS-1 - Merit Network Inc. | — | — | 0 |
| AS208US | DNIC-AS-00208 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS230US | MERIT-AS-7 - Merit Network Inc. | — | — | 0 |
| AS242US | SSSD-AS - SUPSHIP | — | — | 0 |
| AS285US | DNIC-AS-00285 - Headquarters, USAISC | — | — | 0 |
| AS396US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS426US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS428US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS441US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS442US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS453US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS487US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |