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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 |
| 1.8K |
| — |
| 6 |
| AS22334US | FERGUSON - Ferguson Enterprises, LLC | 1.8K | — | 6 |
| AS400556US | LAGLESS-AS - Elcro Digital Services, LLC | 1.8K | — | 7 |
| AS14137US | AICW - America Internet & Communications | 1.8K | — | 6 |
| AS400229US | ELEKTRAFI - ELEKTRAFI INC. | 1.8K | — | 7 |
| AS29729US | TELEFLORA-OKC - Teleflora LLC | 1.8K | — | 6 |
| AS7334US | WALLSTREET - Markit On Demand, Inc. | 1.8K | — | 7 |
| AS13950US | DLS-INTERNET-SERVICES - DLS Internet Services, Inc | 1.8K | — | 7 |
| AS32647US | CRUCIALWEBHOST - Crucial Web Hosting, Ltd. | 1.8K | — | 5 |
| AS14521US | PACIFIC-LIFE - Pacific Life Insurance Company | 1.8K | — | 7 |
| AS22104US | GELB - Gelber Group, LLC | 1.8K | — | 4 |
| AS32340US | ZEN-BACKBONE - ZenWalk | 1.8K | — | 4 |
| AS27225US | TBI-ASN-1 - TrueBlue, Inc. | 1.8K | — | 3 |
| AS14378US | XVL - Xenon Ventures, LLC | 1.8K | — | 7 |
| AS394205US | 5THCOLUMN - 5THCOLUMN LLC | 1.8K | — | 4 |
| AS398879US | SUSQ-BROADBAND - Susquehanna Broadband, LLC | 1.8K | — | 4 |
| AS18570US | ECHOSTAR-BROADCASTING-CORPORATION - EchoStar Broadcasting Corperation | 1.8K | 1 | 8 |
| AS53943US | PAYLOCITY - Paylocity Corporation | 1.8K | — | 7 |
| AS40929US | MOEDOVE-BN - MoeDove | 1.8K | 25.7K | 87 |
| AS30202US | LEVEL-IV - Level IV | 1.8K | — | 7 |
| AS27549US | CAW-ASN-01 - Cloud at Work | 1.8K | — | 6 |
| AS19734US | NTS-NACOGDOCHES-01 - Vexus Fiber | 1.8K | — | 3 |
| AS40399US | MASERGY-CLOUD-COMMUNICATIONS - Masergy Cloud Communications, Inc. | 1.8K | — | 7 |
| AS22744US | WRIGHT-EXPRESS - Wex Inc. | 1.8K | — | 5 |
| AS706US | TEST-AUSTIN-IBM-AS - Advanced Workstations Division, IBM Corporation | 1.8K | — | 7 |
| AS27475US | WAYFAIR-ASN - Wayfair LLC | 1.8K | — | 4 |
| AS947US | RUDIO - Desk2 | 1.8K | — | 4 |
| AS27326US | VHSA-AS - VCU HEALTH SYSTEM AUTHORITY | 1.8K | — | 7 |
| AS21952US | NEILL-CORPORATION - Neill Corporation | 1.8K | — | 4 |
| AS202521US | NEXCESS-AMS01 Liquid Web B.V. | 1.8K | 256 | 5 |
| AS394881US | EK-HOSTING - EK HOSTING INC | 1.8K | — | 4 |
| AS30321US | BURNINGMAN - Burning Man | 1.8K | — | 7 |
| AS402306US | AS-DATAFORGE - DataForge Technologies LLC | 1.8K | — | 4 |
| AS40596US | SOUNDBITE - Soundbite Communications, Inc. | 1.8K | — | 4 |
| AS397700US | LXXIX-PROJECT-LAB-01 - LXXIX Project Lab LLC | 1.8K | 4.1K | 7 |
| AS32337US | NOWCOM-BGP - Nowcom Corporation | 1.8K | — | 6 |
| AS396432US | JH-US-01 - JAMES HARDIE BUILDING PRODUCTS, Inc. | 1.8K | — | 7 |
| AS223US | AS223 - Parsons Corporation | 1.8K | — | 7 |
| AS397893US | OTZ-1 - OTZ Telecommunications, LLC | 1.8K | — | 7 |
| AS36742US | DATA-INTENSITY - Data Intensity, LLC | 1.8K | — | 7 |
| AS18828US | TRIMBLE-WEST - Trimble, Inc. | 1.8K | — | 6 |
| AS53332US | C2HOSTING-01 - C2Hosting, LLC | 1.8K | — | 3 |
| AS13621US | REINSURANCE - Reinsurance Group of America, Incorporated | 1.8K | — | 7 |
| AS2155US | HPINC - HP Inc. | 1.8K | — | 4 |
| AS10587US | FIBERPIPE - Fiberpipe Inc. | 1.8K | 65.5K | 4 |
| AS400436US | KCNA-ASN-01 - Kentucky Communications Network Authority (KCNA) | 1.8K | — | 4 |
| AS36829US | AS-WINSTRI - Winstri Corporation | 1.8K | 6 | 13 |