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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 | 23,999 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| TROYOHIO-TROYSCHOOLS - Troy City School District |
| 2.6K |
| — |
| 2 |
| AS12147US | DFS-RWD - Discover Financial Services | 2.6K | — | 10 |
| AS12171US | FASTENTERPRISES - Fast Enterprises, LLC | 2.6K | — | 10 |
| AS395455US | MIDWEST-RADIOLOGY - St. Paul Radiology | 2.6K | — | 2 |
| AS18608US | PALADYNE-SYSTEMS-INC - PALADYNE SYSTEMS, LLC | 2.6K | — | 8 |
| AS17336US | GENDYN - General Dynamics | 2.6K | — | 7 |
| AS10718US | CNO-FINANCIAL-GROUP - CNO Financial Group, Inc. | 2.6K | — | 10 |
| AS25878US | QNST-DC01 - Quinstreet, Inc. | 2.6K | — | 7 |
| AS26396US | MIDWAYNET-ASN - MidwayNet, LLC. | 2.6K | — | 3 |
| AS395395US | INDIANATECH - Indiana Tech | 2.6K | — | 2 |
| AS32875US | VIRPUS - Wowrack.com | 2.6K | 69.6K | 12 |
| AS16952US | LIGHTSPEED - Lightspeed Datalinks | 2.6K | — | 10 |
| AS394094US | INTELLECTICA-US - Intellectica Systems Inc. | 2.6K | 65.5K | 11 |
| AS11486US | COLO-PREM-VZB - Verizon Business | 2.6K | — | 3 |
| AS11504US | QUMULUSAI - The Cloud Minders, Inc. | 2.6K | — | 10 |
| AS25679US | TDC-DATA3 - Tulsa Datacenter, LLC | 2.6K | — | 9 |
| AS51447US | ROOTLAYERNET RootLayer Web Services LLC | 2.6K | — | 10 |
| AS20144US | IMRS - ICANN | 2.6K | 11 | 19 |
| AS40050US | BRNL - Blue Rim Networks, LLC | 2.6K | 32.8K | 10 |
| AS11528US | PHOTRONICS - Photronics Inc. | 2.6K | — | 10 |
| AS53942US | ASN-CTCAK-1 - Cordova Telecom Cooperative, Incorporated | 2.6K | 65.5K | 5 |
| AS3769US | HEARST-AS - Hearst Magazines, Inc. | 2.6K | — | 9 |
| AS396509US | LETSCLOUD - LETSCLOUD | 2.6K | 20.5K | 8 |
| AS35501US | DEERE-AS Deere & Company Corp | 2.6K | 1 | 4 |
| AS29698US | LAKESHOREFIBER - Lakeshore Fiber LLC | 2.6K | 65.5K | 3 |
| AS22984US | ECC-65 - Lightspeed Communications | 2.6K | — | 9 |
| AS22728US | THINKSIS - Software Information Systems, LLC | 2.6K | — | 2 |
| AS16821US | DUQ-LIGHT - Duquesne Light Company | 2.6K | — | 4 |
| AS402133US | NOVOSERVE-LLC-CUSTOMERS-AS - NovoServe LLC | 2.6K | — | 10 |
| AS395029US | STN-001 - STN Incorporated | 2.6K | — | 9 |
| AS63103US | OCF-AS - Ochsner Clinic Foundation | 2.6K | — | 8 |
| AS27483US | DDS - The Darby Group Co. | 2.6K | — | 10 |
| AS32699US | FIRST-427 - Firstrade Securities Inc. | 2.6K | — | 3 |
| AS33292US | BROADVOICE-BOS - SYNDEO LLC | 2.6K | — | 3 |
| AS401353US | BOOSTRUN - Boost Run LLC | 2.6K | — | 8 |
| AS202756US | AS RFE/RL, INC. | 2.6K | — | 10 |
| AS393591US | GAMEWOODTECHNOLOGYGROUP - Gamewood Technology Group, Inc. | 2.6K | — | 7 |
| AS19435US | DNET-ISP - Dnet Internet Services | 2.6K | — | 10 |
| AS36555US | CITYOFVERNON-1 - City Of Vernon | 2.6K | — | 5 |
| AS396440US | AS-AUBURN-UNIVERSITY-MONTGOMERY - Auburn University at Montgomery | 2.6K | — | 2 |
| AS30097US | NUWAVE - NuWave | 2.6K | — | 8 |
| AS22710US | CHARTER-22710-LOUSIANA-C3 - Charter Communications LLC | 2.6K | 288 | 5 |
| AS21615US | CEBRIDGE - Cebridge Connections | 2.6K | — | 9 |
| AS36516US | F5-XC-FE - F5, Inc. | 2.6K | — | 3 |
| AS32059US | TRADESTATION-1 - TradeStation Securities, Inc | 2.6K | — | 10 |
| AS54302US | UNA-IP-ASN-01 - University of North Alabama | 2.6K | — | 4 |
| AS25816US | TOURO - Touro College | 2.6K | — | 10 |