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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,129 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,664 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,947 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,375 |
| 768 |
| — |
| 3 |
| AS40507US | VIRTUALIZED - GameServerSupply, LLC | 768 | 2 | 5 |
| AS36229US | YAHOO-YSM-SC8 - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS395700US | OMB-ASN - Executive Office Of The President | 768 | 6 | 6 |
| AS395572US | CLEARWINDS - Clear Winds Technologies Incorporated | 768 | — | 3 |
| AS53720US | SUPERIORTECH - Superior Technology Solutions LLC | 768 | — | 3 |
| AS36172US | MHCC-AS001 - MOUNT HOOD COMMUNITY COLLEGE | 768 | — | 2 |
| AS40364US | SATCOM-DIRECT-INC - Satcom Direct Inc. | 768 | — | 2 |
| AS399184US | COLVILLE-ASN-01 - Confederated Tribes of the Colville Reservation | 768 | — | 3 |
| AS53396US | STRAC - STRAC | 768 | — | 3 |
| AS7382US | MIENERGY - MiEnergy Cooperative | 768 | — | 2 |
| AS14614US | STARKEY - Starkey Laboratories, Inc. | 768 | — | 3 |
| AS33743US | HVW-ALB1 - Hudson Valley Wireless | 768 | — | 3 |
| AS20160US | LSCPA - Lamar State College - Port Arthur | 768 | — | 3 |
| AS25975US | NET2ATLANTA-GA - NET2ATLANTA.COM LLC | 768 | — | 3 |
| AS394599US | FSN - Full Service Networking | 768 | — | 2 |
| AS54030US | SUMMIT-SOL-ASN - Summit Solutions, LLC | 768 | — | 3 |
| AS14310US | SNB-ASN - Safra National Bank Of New York | 768 | — | 3 |
| AS402438US | VIYU-NETWORK-SOLUTIONS - Viyu | 768 | — | 2 |
| AS19160US | ATGL-AS - Apex Tool Group LLC | 768 | — | 3 |
| AS27377US | FTICON-909 - FTI CONSULTING | 768 | — | 3 |
| AS15045US | KITTELSON - KITTELSON AND ASSOCIATES, INC. | 768 | — | 3 |
| AS30551US | ASC-163-ASN01 - AK Steel Corporation | 768 | — | 2 |
| AS11386US | HEALTH-AND-HOSPITAL-CORPORATION-OF-MARION-COUNTY - HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY | 768 | — | 3 |
| AS32180US | ROCKET-SIRIUS - ROCKET SOFTWARE INC | 768 | — | 2 |
| AS15263US | GALLUP1 - Gallup | 768 | — | 3 |
| AS63283US | RL-AS - Red Lobster | 768 | — | 3 |
| AS36431US | PIH1 - PIH Health, Inc. | 768 | — | 2 |
| AS32141US | REDROBIN-1 - Red Robin Gourmet Burgers | 768 | — | 3 |
| AS14292US | CSC-VISA - CSRA Consular Services Inc. | 768 | — | 3 |
| AS54116US | STROM - Strom Holdings LLC | 768 | 1 | 5 |
| AS21759US | NRUCFC - National Rural Utilities Cooperative Finance Corporation | 768 | — | 3 |
| AS205419US | pl-lionbridge Lionbridge Technologies, Inc. | 768 | — | 3 |
| AS401673US | BRTEL-USAS1 - Bullroar Telecom, Ltd. | 768 | — | 2 |
| AS17058US | INTELLIVERSE - Intelliverse | 768 | — | 3 |
| AS20229US | MERRICK-AS - Merrick Bank | 768 | — | 3 |
| AS14301US | EVEREST-INTERNET - Everest Global Services | 768 | — | 3 |
| AS401429US | PRIME-ONE - Prime One Net LLC | 768 | 512 | 4 |
| AS214696US | UNCOLLAPSE-AS Uncollapse LLC | 768 | 3 | 6 |
| AS397067US | VFOREGONLLC - VFOregon LLC | 768 | 1 | 3 |
| AS401807US | INTUITY - Intuity Consultants, Inc. | 768 | — | 2 |
| AS10511US | COUNTRY-INSURANCE - CC Services, Inc | 768 | — | 3 |
| AS40936US | ACCS-21 - Alabama Community College System | 768 | — | 2 |
| AS23099US | SPR - DM Petroleum Operations Company | 768 | 1 | 4 |
| AS23474US | SPGLOBAL-SNL-ACQUIRED - S&P Global Inc. | 768 | — | 3 |
| AS63105US | NEILL-BTR - Neill Corporation | 768 | — | 3 |
| AS26338US | HYVE-MANAGED-HOSTING - Hyve Managed Hosting Corp Inc | 768 | 2 | 3 |