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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 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 | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| — |
| — |
| 0 |
| AS400041US | 247RACK - 247RACK.com | — | — | 0 |
| AS400390US | ISC-F-PDX1 - Internet Systems Consortium, Inc. | — | — | 0 |
| AS400408US | GNET-DC-01 - IV Solutions Group, Incorporated | — | — | 0 |
| AS400440US | EMPIRX-HEALTH - EmpiRx Health LLC | — | — | 0 |
| AS400568US | COAXIS-US-01 - Coaxis International, Inc | — | — | 0 |
| AS400576US | MICROSOFT-AZURE-DEDICATED - Microsoft Corporation | — | — | 0 |
| AS400744US | CRANE-CURRENCY - Crane & Co., Inc. | — | — | 0 |
| AS400824US | HCDL-QUINCY-DATA-CENTER - H5 Data Centers | — | — | 0 |
| AS400873US | VMW-NASA-IPV6 - Avago Technologies U.S. Inc. | — | — | 0 |
| AS400898US | IA-DPS - State | — | — | 0 |
| AS401047US | LYNDON-TWP - Lyndon Township | — | — | 0 |
| AS401053US | HOSTTRIK-LLC - HOSTTRIK LLC | — | — | 0 |
| AS401055US | SECURE64-SOFTWARE-INC - Secure64 Software Corporation | — | — | 0 |
| AS401161US | INTERWORLD - Interworld Limited | — | — | 0 |
| AS401329US | CLOUDPROPELLER-AS02 - Cloud Propeller | — | — | 0 |
| AS401372US | DATACANOPY-NWK01 - Sidus Group, LLC | — | — | 0 |
| AS401388US | TELOCITY - CABLE DOMAIN LLC | — | — | 0 |
| AS401396US | TCC-NEW-DC - The Computer Company, Inc. | — | — | 0 |
| AS401423US | AS-EC99 - Ecloud LLC | — | — | 0 |
| AS401445US | USAHS-NETWORKING - USA HealthCare Management, LLC | — | — | 0 |
| AS401448US | MSLLC-01 - Mars Services LLC | — | — | 0 |
| AS401452US | TERACAST-AS - Teracast Networks LLC | — | — | 0 |
| AS401536US | KTEL-AS - Ktel telecom LLC | — | — | 0 |
| AS401601US | BUTLER-BREMER - Butler-Bremer Communications | — | — | 0 |
| AS401810US | ARDENT-DC - Ardent Data Centers | — | — | 0 |
| AS401812US | BUTTERFLYCLOUD - Butterfly Inc | — | — | 0 |
| AS401842US | REVOHEALTH - Revo Health | — | — | 0 |
| AS401882US | FLEX-AWSDX-01 - FLEXCOMPUTE INC. | — | — | 0 |
| AS401936US | VALORNODE-401936 - Valor Holdings LLC | — | — | 0 |
| AS401957US | CSIDE - Client-side development, Inc. | — | — | 0 |
| AS402078US | ZHBSOLUTIONS-AS-01 - ZHB Solutions LLC | — | — | 0 |
| AS402111US | EPERFORMAX - E-PERFORMAX Centers Inc | — | — | 0 |
| AS402131US | CPS ENERGY - CPS ENERGY | — | — | 0 |
| AS402141US | TOGETHER-TN - Together Computer, Inc. | — | — | 0 |
| AS402152US | CALLABYTE-01 - Callabyte Technology, LLC | — | — | 0 |
| AS402182US | HAZEL-SUDZILOUSKI-NETWORKS - Hazel Sudzilouski, Sole Proprietorship | — | — | 0 |
| AS402214US | THINKILLION - Thinkillion LLC | — | — | 0 |
| AS402244US | KUXUEYUN-IPV6 - KUXUEYUN LLC | — | — | 0 |
| AS402257US | HUBSFERA - Hubsfera LLC | — | — | 0 |
| AS402329US | P3-EARLYBIRD - P3 | — | — | 0 |
| AS402342US | BORDER - Border | — | — | 0 |
| AS402364US | LCINFRA - Locally | — | — | 0 |
| AS402468US | ENDURANCE-UT-ISP - Endurance, | — | — | 0 |
| AS402486US | HARRIS - The | — | — | 0 |
| AS402523US | LAMARCISD-DC1 - Lamar | — | — | 0 |
| AS402571US | WVLC - West | — | — | 0 |