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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 | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 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 | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| ACCEL-AS - Accel Net, Inc. |
| 4.4K |
| — |
| 2 |
| AS20014US | WRCTC-NET-1 - West River Cooperative Telephone Company | 4.4K | — | 7 |
| AS18555US | THE-ART-INST - The Art Institute of Chicago | 4.4K | — | 2 |
| AS397394US | GCBB - Gold Coast Broadband | 4.4K | — | 17 |
| AS33650US | COMCAST-33650 - Comcast Cable Communications, LLC | 4.4K | 108 | 120 |
| AS7810US | CMPC - CompuCom Systems, Inc. | 4.4K | — | 2 |
| AS4243US | WELLSFARGO-4243 - Wells Fargo Bank, N.A. | 4.4K | — | 14 |
| AS394077US | LIFEBRIDGEHEALTH - Lifebridge Health, Inc. | 4.4K | — | 11 |
| AS11278US | NINTENDO - Nintendo Of America inc. | 4.4K | 1 | 14 |
| AS1406US | MOTOROLA-MOBILITY - Motorola Inc | 4.4K | — | 11 |
| AS17242US | UNIPAC - UNIPAC Service Corporation | 4.4K | 256 | 18 |
| AS40885US | E2OPEN-1 - E2open LLC | 4.4K | 3 | 14 |
| AS13917US | CORPWEST - Corporate West Computer Systems, Inc. | 4.4K | 65.5K | 3 |
| AS23349US | FARMERS-NETWORK-WEST - Farmers Group, Inc. | 4.4K | — | 17 |
| AS13524US | ARROW-ELECTRONICS - Arrow Electronics | 4.4K | — | 15 |
| AS23081US | VENTURETECHNOLOGIES - CONVERGEONE HOLDINGS, INC. | 4.4K | — | 2 |
| AS29819US | MIS124 - Natural Networks, Inc. | 4.4K | — | 2 |
| AS397347US | NORTH-AS1 - NorthfieldWiFi LLC | 4.4K | — | 5 |
| AS23102US | RMU-EDU - Robert Morris University | 4.4K | — | 2 |
| AS19157US | CHARTER-19157-DC - Charter Communications LLC | 4.4K | — | 10 |
| AS396948US | CLOUDWEBMANAGE-SC - Kamatera, Inc. | 4.4K | 2 | 19 |
| AS21795US | MSMC-ASN - Mount Saint Mary College | 4.4K | — | 2 |
| AS25963US | TCCD-1 - Tarrant County College District | 4.4K | — | 2 |
| AS254US | OPENTEXT - Attachmate Corp. | 4.4K | 1 | 9 |
| AS30417US | BTIG-LLC - BTIG LLC | 4.4K | — | 14 |
| AS394468US | WAVE-WIRELESS-LLC - Wave Wireless LLC | 4.4K | — | 9 |
| AS30673US | NTHRIVE-ASN01 - Finthrive, Inc. | 4.4K | — | 10 |
| AS13798US | LOREAL-USA - L'Oreal USA | 4.4K | — | 7 |
| AS32626US | HOUSTON-AREA-LIBRARY-AUTOMATED-NETWORK-HALAN - Houston Public Library | 4.4K | — | 2 |
| AS14536US | ASN-SOL - sol.net Network Services | 4.4K | 17 | 4 |
| AS394396US | LISTRAK-AS1 - Listrak | 4.4K | — | 2 |
| AS14274US | TENNESSEE-WIRELESS-LLC - TENNESSEE WIRELESS LLC | 4.4K | — | 2 |
| AS17177US | RIVER-VALLEY-INTERNET - Greater Vision Microwave Networks LLC | 4.4K | 8.2K | 12 |
| AS33359US | COWEN-AS-3 - COWEN EXECUTION SERVICES LLC. | 4.4K | — | 14 |
| AS14834US | UIS-AS - University of Illinois at Springfield | 4.4K | 1 | 3 |
| AS14926US | KYN-GTS - Kyndryl | 4.4K | — | 2 |
| AS19368US | THRIVE-SNS-COLO - Thrive Operations, LLC | 4.4K | — | 4 |
| AS397446US | MIDWESTFIBERNETWORK-ASN1 - Midwest Fiber Network, LLC | 4.4K | 65.8K | 12 |
| AS131199US | NEXEON-AS-AP - Nexeon Technologies, Inc. | 4.4K | 65.5K | 12 |
| AS26729US | MW-NET-AS - Midwest Internet, Inc. | 4.4K | — | 12 |
| AS30543US | TVCC-5-AS - Treasure Valley Community College | 4.4K | — | 10 |
| AS54239US | BHTC-ASN - BLOOMINGDALE HOME TELEPHONE COMPANY, INC | 4.4K | — | 12 |
| AS401965US | SAU-AS - Southern Arkansas University | 4.4K | — | 2 |
| AS31871US | GRACELANDUNIVERSITY - Graceland University | 4.4K | — | 2 |
| AS400066US | FRIB-01 - Michigan State University | 4.4K | 2 | 4 |
| AS26958US | ONCOR-1 - Oncor Electric Delivery Company, LLC | 4.4K | — | 8 |
| AS396106US | SMARTAIRA-DP - Consolidated Smart Systems LLC | 4.4K | 2K | 20 |