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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 | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| 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 | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1.8K |
| 1 |
| 8 |
| AS397650US | CALIX-CENTRAL - Calix, Inc. | 1.8K | 47 | 12 |
| AS30202US | LEVEL-IV - Level IV | 1.8K | — | 7 |
| AS40113US | SLHS-AS - ST. LUKE'S HEALTH SYSTEM, LTD. | 1.8K | — | 7 |
| AS27326US | VHSA-AS - VCU HEALTH SYSTEM AUTHORITY | 1.8K | — | 7 |
| AS394562US | STRIPE2 - Stripe, Inc. | 1.8K | — | 7 |
| AS33328US | NORTON-HEALTHCARE - Norton Healthcare | 1.8K | — | 7 |
| AS2579US | AS2579 - Nokia of America Corporation | 1.8K | — | 4 |
| AS393827US | BJWC - BJS WHOLESALE CLUB | 1.8K | — | 6 |
| AS19755US | CRUISE-NETENG-ASN - Cruise LLC | 1.8K | — | 7 |
| AS53943US | PAYLOCITY - Paylocity Corporation | 1.8K | — | 7 |
| AS6169US | CLOUD-42-6169 - Kentik Technologies, Inc. | 1.8K | 16 | 5 |
| AS30321US | BURNINGMAN - Burning Man | 1.8K | — | 7 |
| AS21529US | NOVVA - NOVVA INC | 1.8K | 1K | 11 |
| AS394765US | VERINT - Verint Americas Inc | 1.8K | — | 7 |
| AS11189US | CFL-AS1 - Caliber Home Loans, Inc. | 1.8K | — | 4 |
| AS40399US | MASERGY-CLOUD-COMMUNICATIONS - Masergy Cloud Communications, Inc. | 1.8K | — | 7 |
| AS14211US | GOTHAM-WEB-SERVICES - Gotham Web Services, Inc. | 1.8K | — | 6 |
| AS398879US | SUSQ-BROADBAND - Susquehanna Broadband, LLC | 1.8K | — | 4 |
| AS11159US | LAPL-LAPUBLICLIBRARY - Los Angeles Public Library | 1.8K | — | 7 |
| AS14765US | NTS-SLIDELL-01 - Vexus Fiber | 1.8K | — | 3 |
| AS393586US | VERSCEND-TECHNOLOGIES - Verscend Technologies | 1.8K | — | 7 |
| AS22104US | GELB - Gelber Group, LLC | 1.8K | — | 4 |
| AS396432US | JH-US-01 - JAMES HARDIE BUILDING PRODUCTS, Inc. | 1.8K | — | 7 |
| AS14467US | KUA-NET - KUA.net | 1.8K | — | 4 |
| AS22744US | WRIGHT-EXPRESS - Wex Inc. | 1.8K | — | 5 |
| AS40596US | SOUNDBITE - Soundbite Communications, Inc. | 1.8K | — | 4 |
| AS23149US | BBW - BATH & BODY WORKS, INC. | 1.8K | — | 4 |
| AS21952US | NEILL-CORPORATION - Neill Corporation | 1.8K | — | 4 |
| AS396417US | SFDC-IT - Salesforce, Inc. | 1.8K | 1 | 5 |
| AS14378US | XVL - Xenon Ventures, LLC | 1.8K | — | 7 |
| AS11323US | GETTYIMAGES - Getty Images (Seattle), Inc. | 1.8K | — | 7 |
| AS947US | RUDIO - Desk2 | 1.8K | — | 4 |
| AS401586US | SQUIRREL - Squirrel Networks LLC | 1.8K | — | 4 |
| AS46943US | GLBIX-STLSMO-WPDC - Global Internet eXchange | 1.8K | — | 6 |
| AS62952US | EVACOMM - Velocity Networks, Inc. | 1.8K | — | 4 |
| AS201217US | radishcloud RADISHCLOUD TECHNOLOGY LLC | 1.8K | 90.2K | 59 |
| AS26239US | ATLASAIR - Atlas Air, Inc. | 1.8K | — | 4 |
| AS19734US | NTS-NACOGDOCHES-01 - Vexus Fiber | 1.8K | — | 3 |
| AS706US | TEST-AUSTIN-IBM-AS - Advanced Workstations Division, IBM Corporation | 1.8K | — | 7 |
| AS18570US | ECHOSTAR-BROADCASTING-CORPORATION - EchoStar Broadcasting Corperation | 1.8K | 1 | 8 |
| AS32164US | SECURED-SERVERS - SECURED SERVERS LLC | 1.8K | — | 3 |
| AS394229US | TELOGIKS - Juxto, Inc. | 1.8K | 1 | 8 |
| AS400475US | NUCLEARFALLOUT-DAL - Nuclearfallout Enterprises, Inc. | 1.8K | 4.1K | 8 |
| AS395137US | EPC-55-ASN - Edgewell Personal Care Brands, LLC | 1.8K | — | 7 |
| AS40584US | AS40584 - Enova International, Inc. | 1.8K | — | 6 |
| AS27225US | TBI-ASN-1 - TrueBlue, Inc. | 1.8K | — | 3 |