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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| 9K |
| — |
| 4 |
| AS19576US | EASTERN-AS-01 - Eastern University | 9K | — | 6 |
| AS399672US | AERVIVO - Aervivo, Inc | 9K | 1.8K | 34 |
| AS36075US | SPACELABS-HEALTHCARE - SpaceLabs Medical, Inc. | 9K | — | 5 |
| AS41458US | MVSGROUP-AS Pulsar Solutions Inc. | 9K | — | 7 |
| AS400529US | INFRALY-LLC - Infraly, LLC | 9K | 1 | 36 |
| AS27079US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 9K | — | 4 |
| AS395032US | KRAUS-ONLINE - Krausonline.com | 9K | — | 12 |
| AS32758US | TOTELCSI - TotelCSI | 9K | — | 12 |
| AS397642US | AUCAL-397642 - Vestis Services, LLC | 9K | — | 4 |
| AS6995US | VRIS-6995 - Verizon Business | 9K | — | 35 |
| AS19443US | STAPLES - Staples, Inc | 9K | — | 21 |
| AS22352US | APPLIED-TECHNOLOGY - Applied Technology Group Inc. | 9K | — | 9 |
| AS634US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | 9K | — | 18 |
| AS26747US | PCTCNET-AS1 - Phillips County Telephone Company | 9K | — | 18 |
| AS200058US | ABBVIE AbbVie, Inc. | 9K | — | 16 |
| AS32082US | BSC-20041102 - Bridgewater State University | 9K | — | 35 |
| AS11319US | DDMINC - Deseret Digital Media, Inc. | 9K | — | 4 |
| AS26388US | FIBERFI - FIBERFI | 9K | 3 | 38 |
| AS26421US | PONDEROSA-INTERNET - Ponderosa Cablevision | 9K | — | 15 |
| AS27139US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 9K | — | 33 |
| AS395129US | UNITED-FIBER - United Electric Cooperative | 9K | — | 8 |
| AS17369US | CHAPNET - Chapman University | 9K | — | 4 |
| AS402138US | BOLD-SWU-TX - Apogee Telecom Inc. | 9K | — | 4 |
| AS46262US | RTASN - ResTech Services LLC | 9K | 65.8K | 58 |
| AS20185US | GEUS-CABLE-INTERNET - GEUS | 9K | — | 7 |
| AS17151US | VONAGE - Vonage Holdings, Inc. | 9K | — | 35 |
| AS33313US | AS33313 - Crown Castle Fiber LLC | 9K | — | 16 |
| AS18664US | VELOCITY-BNA - Velocity Technology Solutions, Inc | 9K | — | 5 |
| AS197832US | NaviSiteEurope NAVISITE OPCO LLC | 9K | — | 9 |
| AS17107US | GADOT-NET1 - Georgia Department of Transportation | 9K | — | 3 |
| AS22168US | SHADOWSERVER-FOUNDATION - The Shadowserver Foundation, Inc. | 9K | 2 | 29 |
| AS33198US | AS33198-SWITCHLV - Qualcomm, Inc. | 9K | — | 4 |
| AS53334US | TUT-AS - Total Uptime Technologies, LLC | 8.8K | 30 | 82 |
| AS17099US | CALLIS-COMMUNICATIONS-AS - Callis Communications | 8.7K | — | 8 |
| AS33501US | MTDIGITAL - Montana Digital, LLC. | 8.7K | 65.5K | 6 |
| AS46491US | MEC-ASN - Metropolitan Educational Council | 8.7K | — | 11 |
| AS21708US | SDCOE - San Diego County Office of Education | 8.7K | — | 3 |
| AS206US | CSC-IGN-AMER-AS206 - DXC US Latin America Corporation | 8.7K | — | 4 |
| AS7235US | LANMINDS - LanMinds, Inc. | 8.7K | — | 2 |
| AS19356US | TOUA-NOC - Tohono O'Odham Utility Authority | 8.7K | — | 4 |
| AS27597US | SITESERVER-IDC1 - Siteserver, Inc. | 8.7K | 65.5K | 4 |
| AS19999US | UNIONASN - Union College | 8.7K | — | 4 |
| AS394762US | DSUSD-AS1 - Desert Sands Unified School District | 8.7K | — | 3 |
| AS20392US | WESTPANET - WestPAnet, Inc. | 8.7K | — | 2 |
| AS22711US | GNA-CORP-GENWORTH-FINANCIAL - Genworth North America Corporation | 8.7K | 260 | 7 |
| AS394384US | EDGE-BROADBAND - Edge Broadband | 8.7K | 69.6K | 14 |