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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,144 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,240 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.1M | 3,642 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,945 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,376 |
| 2K |
| 1 |
| 9 |
| AS204229US | Global_Router Global Router LLC | 2K | — | 3 |
| AS32841US | BOINGO-AS-EC - Boingo Wireless, Inc. | 2K | — | 1 |
| AS8928US | INTEROUTE GTT Communications Inc. | 2K | — | 1 |
| AS40761US | PRECISE-NETWORKS-INC - Precise Networks, Inc. | 2K | 4.1K | 3 |
| AS35917US | AS-ANDEAVOR - Tesoro Companies, Inc. | 2K | — | 7 |
| AS14549US | US-MARLINK - Marlink, Inc. | 2K | — | 3 |
| AS40371US | AS40371 - PROS, Inc. | 2K | — | 8 |
| AS206980US | antiddosAS AntiDDoS Solutions LLC | 2K | — | 8 |
| AS40585US | SCC - SCC Soft Computer | 2K | — | 4 |
| AS14314US | UTRGV-AS-14314 - University of Texas Rio Grande Valley | 2K | — | 3 |
| AS32246US | CARGIL-FP - Cargill, Inc. | 2K | — | 8 |
| AS398056US | VERITIV-ASN1 - Veritiv Operating Company | 2K | — | 8 |
| AS606US | SCHAT-AS - schat.net | 2K | — | 5 |
| AS14695US | EL-RENO-MUNICIPAL-AUTHORITY - City of El Reno | 2K | — | 2 |
| AS5787US | SNAPONSBS - Snap-on Business Solutions Inc. | 2K | 1 | 9 |
| AS27646US | COPART - Copart, Inc | 2K | — | 6 |
| AS19217US | IVYTECHSC - IVY Tech Community College of Indiana | 2K | — | 1 |
| AS15231US | STARNOVA-LLC - Starnova LLC | 2K | 4.1K | 2 |
| AS10717US | SCHOLASTIC - Scholastic Inc. | 2K | — | 7 |
| AS397848US | VIKINGBROADBAND - VIKING Broadband, Inc. | 2K | — | 5 |
| AS14016US | CAPCON-NETWORK-LLC - Capcon Networks | 2K | 4 | 11 |
| AS54507US | ACCESSBROADBAND - Access Broadband | 2K | — | 1 |
| AS20194US | BEARTECH - Bear Technologies Corporation | 2K | — | 8 |
| AS26181US | NCPRPDC-NCI - North Central Pennsylvania Regional Planning and Development Commission | 2K | — | 1 |
| AS10440US | MERKLE-INC - Merkle Inc. | 2K | — | 4 |
| AS397029US | IA-OCIO - State of Iowa OCIO | 2K | — | 2 |
| AS19923US | SHENANDOAH-UNIV - Shenandoah University | 2K | — | 8 |
| AS30290US | WOCO - Western Ohio Computer Organization | 2K | — | 1 |
| AS6948US | INTERCOM - Intercom Online | 2K | — | 5 |
| AS33368US | FXSERVER - Visual Trading Systems, LLC | 2K | — | 2 |
| AS393912US | BEMIS-PUBAS1 - Bemis | 2K | — | 3 |
| AS10360US | AARP - AARP | 2K | — | 8 |
| AS22418US | COLOG - Cologuard | 2K | 1 | 6 |
| AS16728US | MATTEL - Mattel, Inc. | 2K | — | 6 |
| AS55183US | FAST-AIR - Fast-Air Internet, Inc. | 2K | — | 8 |
| AS19107US | YMAX-AS - Ymax Communications Corp | 2K | — | 8 |
| AS20289US | AS-ISGNOC - ISG Technology | 2K | — | 8 |
| AS396850US | IRHN - Illinois Rural Healthnet | 2K | — | 1 |
| AS40463US | ALABAMA-FIBER-NETWORK - Alabama Fiber Network | 2K | 65.5K | 2 |
| AS36509US | CHIMES - Chimes Incorporated | 2K | — | 1 |
| AS53501US | WHS-WEBMD - WebMD Health Services Group, Inc. | 2K | — | 6 |
| AS22403US | TRINICOM - TRINICOM COMMUNICATIONS | 2K | — | 4 |
| AS394617US | LCUB - LCUB | 2K | 65.5K | 2 |
| AS55079US | STELLANET - Third Gear Networks | 2K | 8 | 16 |
| AS13968US | CAISO-NET-BLK - CALIFORNIA ISO | 2K | — | 8 |
| AS15234US | MCGENERGY - MCG Energy Solutions LLC | 2K | — | 8 |