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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 | 24,540 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,305 |
| 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.
32,187 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,362 |
| 256 |
| — |
| 1 |
| AS393800US | AWMF - The Andrew W. Mellon Foundation | 256 | — | 1 |
| AS395286US | BELOITHEALTHSYSTEM - Beloit Health System, Inc. | 256 | — | 1 |
| AS395750US | BHC-ASN1 - Baptist Health Care, Inc, | 256 | — | 1 |
| AS40018US | DENDREON-DENDREON-PHARMACEUTICALS-LLC-US - Dendreon Pharmaceuticals LLC | 256 | — | 1 |
| AS22336US | PELLA - Pella Corporation | 256 | 1 | 2 |
| AS393541US | ESS-CORP - EXTRA SPACE STORAGE | 256 | — | 1 |
| AS401928US | DFTC - DFTC | 256 | 256 | 2 |
| AS7932US | NUMERIX - Numerix | 256 | — | 1 |
| AS396941US | DRI-RSC - DARDEN CORPORATION | 256 | — | 1 |
| AS23086US | POUNDBANG-HOSTING - Pound Bang Incorporated | 256 | — | 1 |
| AS16840US | JETSET-NETWORKS - JetSet Networks | 256 | 65.5K | 2 |
| AS402586US | COMMURE-USA - Commure | 256 | 2 | 3 |
| AS398168US | GIRMC-NET-01 - Grand Island Regional Medical Center | 256 | — | 1 |
| AS54824US | ITSINC-SHAZAMNETWORK - ITS, INC. | 256 | — | 1 |
| AS399433US | AS-MS-78058 - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | 256 | — | 1 |
| AS29952US | XVAND-ISUTILITY - Xvand Technology Corp. | 256 | — | 1 |
| AS25974US | D11 - EXPEDIA, INC | 256 | — | 1 |
| AS401684US | RSM22 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS40408US | KOUNT-INC - Kount, Inc. | 256 | — | 1 |
| AS18751US | BPL-B1 - Basketball Properties Ltd | 256 | — | 1 |
| AS51844US | HASHT-ENTERPRISE - HashTable, Inc. | 256 | 6 | 7 |
| AS397992US | AXION - Axion | 256 | — | 1 |
| AS55187US | AC-CHARTER-WINDTREAM - Assumption University | 256 | — | 1 |
| AS32673US | EVERGREEN-TECH-TX - Evergreen Technology Solutions, LLC | 256 | 65.5K | 2 |
| AS395083US | APOG-SUNYCANTON-NY - Apogee Telecom Inc. | 256 | — | 1 |
| AS59662US | DOCUS-EMEA-PROD DocuSign, Inc. | 256 | — | 1 |
| AS397870US | SFI - The Santa Fe Institute | 256 | — | 1 |
| AS397489US | MATTHEWS-209 - Matthews Book Company | 256 | — | 1 |
| AS395694US | GSO-INTERNET - Qorvo US, Inc | 256 | — | 1 |
| AS395146US | OTVM-AS-01 - Optiv | 256 | — | 1 |
| AS16855US | DOUGHERTY-DCSS-1 - Dougherty County School System | 256 | — | 1 |
| AS63458US | KGPTEL - KGP Telecommunications, Inc. | 256 | — | 1 |
| AS396935US | RI-TELEPHONE-01 - Rhode Island Telephone, Inc. | 256 | — | 1 |
| AS26355US | TIDIPRODUCTSLLC - TIDI Products LLc | 256 | — | 1 |
| AS62812US | THENATUREORG-1 - The Nature Conservancy | 256 | — | 1 |
| AS397995US | CITYOFEDMOND - City of Edmond | 256 | — | 1 |
| AS395277US | ST-LUKES-HOSPITAL - Aspirus, Inc. | 256 | — | 1 |
| AS33233US | OECU-BGP1 - Oklahoma Employees Credit Union | 256 | — | 1 |
| AS1075US | AS-WITC-01 - Wiseinfotec.net LLC | 256 | — | 1 |
| AS55086US | PINNACLE-DATA-SYSTEMS - Pinnacle Data Systems, L.L.C. | 256 | — | 1 |
| AS62961US | BISNET1 - Blueshift Information Systems Inc. | 256 | — | 1 |
| AS402464US | CNET-PR-01 - Curetopia | 256 | — | 1 |
| AS30467US | VONAGE-03 - Vonage Holdings, Inc. | 256 | — | 1 |
| AS13699US | SWFLAFC - SWF Associates in Podiatric Medicine & Surgery | 256 | 1 | 2 |
| AS210655US | LaCrette Brian LaCrette | 256 | 1 | 2 |
| AS54705US | FRANKCRUM - FrankCrum | 256 | — | 1 |