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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,372 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,235 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 | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,275 |
| — |
| — |
| 0 |
| AS399508US | SUNSHINE811-DEBARY - Sunshine State One-Call of Florida, Inc. | — | — | 0 |
| AS399623US | OSCAR - Software Answers, Inc. | — | — | 0 |
| AS399626US | GROUP-IID-002 - INTERCONTINENTAL INTERNET DATA CORP | — | — | 0 |
| AS399696US | SBPHOLDINGLP-01 - SBP Holding LP | — | — | 0 |
| AS399801US | TLC-MILLIMETER-WAVE-PRODUCTS - TMPI | — | — | 0 |
| AS399832US | LIBERTY-BROADBAND - Liberty Broadband LLC | — | — | 0 |
| AS399834US | AWS - Amazon.com, Inc. | — | — | 0 |
| AS399838US | VITALGAMENETWORK - VITAL GAME NETWORK, LLC | — | — | 0 |
| AS399995US | ASN-CCS01 - The Systems House, Inc. | — | — | 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 |
| 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 |