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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. | 211.2M | 21,291 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,268 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 411 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,732 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,968 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS137437US | AIRBNB-AS-AP - Airbnb, Inc. | — | — | 0 |
| AS149286US | NETINNOVATIONLLC-AS-AP - net innovation llc | — | — | 0 |
| AS197619US | TELNAB Telnab Networks LLC | — | — | 0 |
| AS202153US | tqhosting-kar01 NetActuate Inc | — | — | 0 |
| AS203189US | WEB-DUNKARE Dunkare LLC | — | — | 0 |
| AS205609US | sigmatel Sigma Telecom LLC | — | — | 0 |
| AS206203US | ASHNET-AS Ashley Statuto | — | — | 0 |
| AS206607US | Nexus-Bytes Nexus Bytes LLC | — | — | 0 |
| AS210764US | ISC-AGP1 Internet Systems Consortium Inc. | — | — | 0 |
| AS212187US | AS_Screwjack Screwjack, LLC | — | — | 0 |
| AS213034US | STACLAR-CORPORATE Staclar, Inc. | — | — | 0 |
| AS213832US | LAYERSENTRY-AS LayerSentry LLC | — | — | 0 |
| AS393218US | ORACLE-OC39 - Oracle Corporation | — | — | 0 |
| AS393229US | OPORTUN - Oportun,Inc. | — | — | 0 |
| AS393234US | PROLEXIC-MGMT - Akamai Technologies, Inc. | — | — | 0 |
| AS393271US | LIVINGSTONHAVEN - Livingston and Haven, LLC | — | — | 0 |
| AS393335US | SAP-DC-CO2 - SAP America Inc. | — | — | 0 |
| AS393358US | BOSTON-ENV - ENV | — | — | 0 |
| AS393491US | AS-393491 - 617A Corporation | — | — | 0 |
| AS393545US | FCH - 1st Class Hosting, LLC | — | — | 0 |
| AS393921US | VASCOR-LIMITED - VASCOR Limited | — | — | 0 |
| AS394045US | TRACELINK - Tracelink | — | — | 0 |
| AS394047US | ARCOS-COL-ASN - Arcos LLC | — | — | 0 |
| AS394059US | DCNET - DC NET LLC | — | — | 0 |
| AS394091US | DHS54-ASN - Diversified Health Services, Inc. | — | — | 0 |
| AS394120US | TSDS-LOCATION3 - CenturyLink Communications, LLC | — | — | 0 |
| AS394141US | ROCKET-FIBER - Rocket Fiber | — | — | 0 |
| AS394148US | ATMEL-COM - ATMEL Corporation | — | — | 0 |
| AS394215US | ZENORADIO - ZenoRadio | — | — | 0 |
| AS394231US | AS-RTSD - Radnor Township School District | — | — | 0 |
| AS394346US | KPS-HORIZON-NET-1 - KNIGHT POINT SYSTEMS, LLC | — | — | 0 |
| AS394349US | VINYLINTERACTIVE - Vinyl Interactive, LLC | — | — | 0 |
| AS394383US | GMAC - Graduate Management Admission Council | — | — | 0 |
| AS394440US | COMCASTROUTE - Lebanon Valley College | — | — | 0 |
| AS394454US | WB-AS-US - Withers Bergman LLP | — | — | 0 |
| AS394458US | DATAMINR-1 - Dataminr | — | — | 0 |
| AS394641US | 724IT-BGP-COLO - AMA NETWORKS | — | — | 0 |
| AS394680US | ESSEXTEL - EssexTel, Inc. | — | — | 0 |
| AS394717US | SGO-BROADBAND - S-Go Video and Internet | — | — | 0 |
| AS394758US | PFE-HSP - Pfizer Inc. | — | — | 0 |
| AS394789US | WNMIAS - Western National Mutual Insurance Company | — | — | 0 |
| AS394822US | WGH-ASN-1 - Wabash General Hospital District | — | — | 0 |
| AS394842US | AFS-5 - AMERIPRISE FINANCIAL SERVICES, LLC | — | — | 0 |
| AS394931US | ROSWELL - PRIMERICA LIFE INSURANCE COMPANY | — | — | 0 |
| AS395012US | AURORA - Aurora Operations, Inc. | — | — | 0 |
| AS395077US | ORION-STELLAR - Stellar Technologies, LLC | — | — | 0 |