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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| — |
| — |
| 0 |
| AS3973US | AS-SPRINTLINK-NYSERN2 - Sprint, Business Services Group | — | — | 0 |
| AS3764US | IA-HOU-AS - JAB Wireless, INC. | — | — | 0 |
| AS4067US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS5634US | MILESTONE - Milestone Research and Development Labs Inc. | — | — | 0 |
| AS5368US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5250US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5276US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS4551US | CL-260-4551 - CyrusOne LLC | — | — | 0 |
| AS4575US | CYBERHOUSE - CyberHouse Corp. | — | — | 0 |
| AS4988US | ALOHANET1 - Hawaiian Telcom Services Company, Inc. | — | — | 0 |
| AS5689US | HOOSIERNET - HoosierNet, Inc. | — | — | 0 |
| AS63110US | ZUORA-CORP-USWEST - Zuora, Inc | — | — | 0 |
| AS63098US | FDE-3 - FOX CORPORATION | — | — | 0 |
| AS62657US | NEWREZ-LLC - NewRez LLC | — | — | 0 |
| AS401603US | AS-THREELANTERNS - Three Lanterns LLC | — | — | 0 |
| AS3519US | DSI-WR - RTX BBN Technologies, Inc. | — | — | 0 |
| AS3483US | COGENT-3483 - Cogent Communications, LLC | — | — | 0 |
| AS3009US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS132US | WPAFB-CSD-NET-AS - Air Force Systems Networking | — | — | 0 |
| AS2759US | MCI-NETC - Verizon Business | — | — | 0 |
| AS2741US | DNIC-AS-02741 - United States Department of Defense (DoD) | — | — | 0 |
| AS1976US | DNIC-AS-01976 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2582US | CDE - California Department of Education | — | — | 0 |
| AS2770US | TDHS-WEL-NET - Texas Department of Human Resources | — | — | 0 |
| AS402202US | GEOFIBER - GeoFiber Broadband and Internet Services LLC | — | — | 0 |
| AS402034US | WP1 - Winnr | — | — | 0 |
| AS617US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS401857US | BRIGHT-MIND-NETWORK - BrightMind Solutions LLC | — | — | 0 |
| AS401850US | LUANFLARE - Luanflare, Inc | — | — | 0 |
| AS401524US | WORLDPAY-US-01 - Worldpay, LLC | — | — | 0 |
| AS10324US | WAZOO-AS - Wazoo's Computers | — | — | 0 |
| AS401101US | THEKNIFECOMPANY-NICKNAME-FOR-ASN - A.G. Russell Knives, Inc. | — | — | 0 |
| AS401090US | SARAPLUS-AZURE-01 - SARA Plus, LLC | — | — | 0 |
| AS402893US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS401278US | ZGOVPS - ZgoShop, Inc. | — | — | 0 |
| AS402685US | NEBIUS-NA-SOUTH - Nebius | — | — | 0 |
| AS402662US | SEERAPPSASN1 - SeerApps | — | — | 0 |
| AS402325US | SOUTHERN-TIER-NETWORK-NY - Southern | — | — | 0 |
| AS402275US | AS-BITBOUCHER - BITBOUCHER LLC | — | — | 0 |
| AS402496US | REDDOT-BGP - Red | — | — | 0 |
| AS402507US | NETWORKOLOGY - Networkology | — | — | 0 |
| AS6417US | AGENTS-INC - Agents, Inc. | — | — | 0 |
| AS402808US | GAI-WINDSOR-AS01 - GlobalAI | — | — | 0 |
| AS6217US | ANS-AXISNET - Axis.Net Inc. | — | — | 0 |
| AS6177US | COGENT-6177 - Cogent Communications, LLC | — | — | 0 |
| AS5985US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |