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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 1.3K |
| — |
| 4 |
| AS206070US | MROUTE Master Route LLC | 1.3K | — | 2 |
| AS36838US | INFOIMAGE - INFOIMAGE OF CALIFORNIA | 1.3K | — | 5 |
| AS399570US | NFINITY-BROADBAND - NFinity Broadband | 1.3K | 65.5K | 4 |
| AS6515US | DACSNX-ISP - DACS-IX | 1.3K | 70 | 15 |
| AS400255US | BITFIRE - BitFire Networks, LLC | 1.3K | — | 5 |
| AS923US | HWS - Aconite Systems LLC | 1.3K | 2 | 4 |
| AS11496US | JPMORGAN-CPS-TAMPA-FL - JPMorgan Chase & Co. | 1.3K | — | 5 |
| AS399889US | NET-FRONT-001 - Qwscloud Dot Com | 1.3K | — | 2 |
| AS63405US | CANON-BUSINESS-PROCESS-SERVICES-UT - CANON BUSINESS PROCESS SERVICES, Inc. | 1.3K | — | 5 |
| AS394887US | MONETRA-AS - Monetra Technologies LLC | 1.3K | 4 | 9 |
| AS40051US | DWS-HK - Disney Worldwide Services, Inc. | 1.3K | — | 5 |
| AS36707US | SYSTEMADMIN - System Admin, LLC | 1.3K | — | 2 |
| AS401943US | HSE-ARIN-01 - Hornetsecurity | 1.3K | — | 3 |
| AS3073US | CITI7 - Citigroup Inc. | 1.3K | — | 5 |
| AS32286US | TRIPADVISOR - TripAdvisor LLC | 1.3K | — | 5 |
| AS46407US | AS-VULTR3 - The Constant Company, LLC | 1.3K | 3 | 7 |
| AS206916US | SWNET-BACKBONE Southwest Network Corporation | 1.3K | — | 4 |
| AS205484US | SPLT-EUR1 SailPoint Technologies, Inc. | 1.3K | — | 2 |
| AS14160US | PREMIUMTELECOM - Premium Hosting, Inc. | 1.3K | — | 5 |
| AS19588US | GC-1 - GOR CORPORATION | 1.3K | — | 4 |
| AS7045US | WEATHER - THE WEATHER CHANNEL, LLC | 1.3K | — | 5 |
| AS29833US | MEDICAL-INFORMATICS-ENGINEERING - MEDICAL INFORMATICS ENGINEERING | 1.3K | — | 5 |
| AS33516US | WPP-ET-CAMPUS-3WTC - The Ogilvy Group, LLC | 1.3K | — | 4 |
| AS40417US | INTERACTIONSCORP - Interactions Corporation | 1.3K | 2 | 7 |
| AS27281US | QUANTCAST - Quantcast Corporation | 1.3K | 8 | 13 |
| AS20091US | MARTINSVILLE-VA - City of Martinsville, VA | 1.3K | — | 5 |
| AS7116US | TOYOTA-EXT - Toyota Motor Sales, U.S.A., Inc. | 1.3K | — | 5 |
| AS11493US | HILLSBOROUGH-COUNTY-SHERIFFS-OFFICE - Hillsborough County Sheriff's Office | 1.3K | — | 3 |
| AS398260US | ENERMUSCLE-ASN - Alternative Internet Resources | 1.3K | — | 5 |
| AS395363US | INFOBLOX-1 - Infoblox, Inc. | 1.3K | 5 | 10 |
| AS46461US | CRYPTICSTUDIOS - CRYPTIC STUDIOS, INC. | 1.3K | — | 4 |
| AS54056US | PCA-AS - Packaging Corporation of America | 1.3K | — | 5 |
| AS14556US | PTC - Pilot Travel Centers, LLC | 1.3K | — | 5 |
| AS18662US | AFLAC - Aflac | 1.3K | — | 4 |
| AS40834US | CHARLES-RIVER-LABORATORIES-INC-SHR - Charles River Laboratories, Inc. | 1.3K | — | 2 |
| AS55009US | ROUTER12 - Router12 Networks LLC | 1.3K | — | 4 |
| AS13580US | SOUTHERN-NETWORK-SERVICES - Parish Broadband | 1.3K | 65.5K | 3 |
| AS8149US | ABACUS-GROUP2 - Abacus Group LLC | 1.3K | — | 5 |
| AS18745US | CWPS-WDC - CWPS | 1.3K | — | 5 |
| AS992US | MODEST-LABS - Modest Labs LLC | 1.3K | 9 | 6 |
| AS400585US | MBI-ASN01 - Michael Baker International, Inc. | 1.3K | — | 5 |
| AS394470US | ECLOUD360 - Ecloud360 | 1.3K | 1 | 5 |
| AS22348US | COGNITION - Cognition AI, Inc. | 1.3K | 256 | 3 |
| AS33358US | AE-CORPORATE-SERVICES-CO - AE CORPORATE SERVICES CO | 1.3K | — | 4 |
| AS402687US | FAL - fal | 1.3K | — | 5 |
| AS46696US | DATACANOPY-C1-DFW1 - Sidus Group, LLC | 1.3K | 256 | 5 |