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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. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| NR-DIGITAL-LLC-AS N.R. Digital LLC |
| — |
| 512 |
| 2 |
| AS402536US | NETZR - NETZR | — | 1 | 1 |
| AS211562US | andrewnet andrewnet llc | — | 261 | 6 |
| AS394882US | JUPITERCLOUD - Jupiter Cloud LLC | — | 2 | 2 |
| AS396874US | JAMF - JAMF | — | 1 | 1 |
| AS210660US | CAVEFOX CaveFox LLC | — | 257 | 2 |
| AS395460US | PROLIXIUM-AS - Prolixium Enterprises, LLC | — | 22 | 7 |
| AS397955US | DEEPSOUTHCOMMUNICATIONS - Deep South Communications LLC | — | 1 | 1 |
| AS55126US | HPDF-JLAB - High Performance Data Facility | — | 1 | 1 |
| AS6043US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 1 | 1 |
| AS809US | PPD-TRANSIT - PhirePhly Design | — | 1 | 1 |
| AS402933US | VOSMET - Vosmet | — | 5.2M | 10 |
| AS219383US | LewisAS Andrew Lewis | — | 20 | 5 |
| AS202142US | PACKETHARBOR PacketHarbor LLC | — | 4.1K | 4 |
| AS398565US | PETERJIN - Peter Jin Technologies LLC | — | 1 | 1 |
| AS396088US | SOMNET-AS-01 - SOMCO LLC | — | 1 | 1 |
| AS11938US | ABANTU - NCRYPTD LLC | — | 1 | 1 |
| AS27518US | FABAS - First American Bank | — | 2 | 2 |
| AS11006US | HRT-SCS - HRTec | — | 65.7K | 2 |
| AS11021US | NVH-ASN - North Valley Hospital | — | 256 | 1 |
| AS219255US | Lee-World Derek Lee | — | 1 | 1 |
| AS401385US | DURANTA-NET - Duranta Inc. | — | 2 | 2 |
| AS11944US | LTC-1 - LaValle Telephone Cooperative | — | 256 | 1 |
| AS400917US | ROSE-CIRCUIT2 - Aubrey Rose | — | 8 | 1 |
| AS50842US | SERVERFORGE - ServerForge LLC | — | 64 | 1 |
| AS397958US | SUNOAKI-NET-PREMIUM - Sunoaki Network LLC | — | 2 | 2 |
| AS4221US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | 2 | 2 |
| AS395326US | MIT-V6 - Massachusetts Institute of Technology | — | 1 | 1 |
| AS5980US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 1 | 1 |
| AS401519US | SUNOAKI-NET-CCH - Sunoaki Network LLC | — | 2 | 2 |
| AS197259US | KAOFISH-AS KAOFISH NETWORK LLC | — | 16 | 1 |
| AS22400US | WEB2OBJECTS - Web2Objects LLC | — | 2 | 1 |
| AS400429US | ALTHEA - Hawk Networks Inc | — | 8 | 1 |
| AS402948US | HOSTFC - HostFC, | — | 256 | 1 |
| AS402266US | SLDNET - Salad Technologies, Inc. | — | 108 | 108 |
| AS11161US | DIGITALVIRT - DigitalVirt | — | 1 | 1 |
| AS399342US | SOPHOS-AS-NA - SOPHOS | — | 256 | 1 |
| AS215313US | LINEAR-NETWORK Emily Ingalls | — | 17 | 2 |
| AS197962US | HOOP7MOBILETELECOM-AS 7HOOP MOB TELECOM LLC | — | 98.3K | 24 |
| AS402695US | SPUZE - SPUZE | — | 256 | 1 |
| AS62900US | KERFUFFLE-62900 - Kerfuffle, LLC | — | 2 | 2 |
| AS5132US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | 6 | 6 |
| AS402653US | WCUUSD-2026-ASN - Washington | — | 16 | 1 |
| AS402537US | YMISO - YMISO | — | 32 | 2 |
| AS402897US | CKSVC-01 - CK | — | 17 | 2 |
| AS3000US | SPRINT-MRN-BLOCK - U.S. Sprint | — | 16.4K | 1 |
| AS402406US | LINQ-APP - Linq | — | 2 | 2 |