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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 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 | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 512 |
| — |
| 1 |
| AS399090US | GINKGOBIOWORKS - Ginkgo Bioworks, Inc. | 512 | — | 2 |
| AS399894US | TAYLORED-FMI - Taylored Services, LLC | 512 | — | 2 |
| AS13460US | EARTHCAM - EarthCam, Inc. | 512 | 2 | 4 |
| AS62841US | CITY-OF-NEW-ORLEANS - City of New Orleans | 512 | — | 1 |
| AS26021US | AS-DNS3 - Unicycle, LLC | 512 | 4 | 4 |
| AS53710US | OWENS-CORNING - Owens-Corning | 512 | 8 | 2 |
| AS397116US | WMLPNET-AS-01 - Wellesley Municipal Light Plant | 512 | — | 1 |
| AS397473US | HTG-VOLARE-01 - HighPoint Technology Group, LLC | 512 | — | 2 |
| AS398911US | TERABIT-NETWORKS - Terabit Networks | 512 | — | 1 |
| AS4966US | CASELLAWASTE - Casella Waste System Inc | 512 | — | 2 |
| AS62606US | SECTOR7LLC - Sector 7, LLC | 512 | — | 2 |
| AS402806US | DUOCIRCLE - DuoCircle | 512 | — | 2 |
| AS400135US | JEDUNN - JE DUNN CONSTRUCTION COMPANY | 512 | — | 2 |
| AS398572US | MONOLITHICPOWER-SJC - Monolithic Power Systems,Inc | 512 | — | 2 |
| AS398003US | TGNA-WOI - TEGNA Inc. | 512 | — | 2 |
| AS13814US | RCB1936 - RCB Bank | 512 | — | 2 |
| AS53838US | BEACHBODYUS1 - Beachbody, LLC | 512 | — | 2 |
| AS46567US | BORDER-STATES-INDUSTRIES - Border States Industries | 512 | — | 2 |
| AS401442US | SPUR - Spur Intelligence Corporation | 512 | 3 | 5 |
| AS395860US | NETBLK-CLARIOS - Clarios | 512 | — | 2 |
| AS396089US | NEXCUS - NEXCUS TECHNOLOGIES LLC | 512 | — | 2 |
| AS11962US | EMPIRE5882300 - Empire Today LLC | 512 | — | 2 |
| AS18539US | DAYTON-SUPERIOR-MIAMISBURG - DAYTON SUPERIOR CORPORATION | 512 | — | 2 |
| AS11894US | SERVICE-CREDIT-UNION-11894 - Service Credit Union | 512 | — | 1 |
| AS22621US | UNIGROUP - UniGroup, INC | 512 | — | 2 |
| AS400659US | DAVEYGROUPLLC-ASN - Davey Group LLC | 512 | 1 | 3 |
| AS393764US | APOG-HUNTINGDON-COLLEGE - Apogee Telecom Inc. | 512 | — | 2 |
| AS17009US | SHOPTIKAL - Shopko Optical | 512 | — | 2 |
| AS60653US | FEEDLY-DEVHD FEEDLY, INC. | 512 | — | 2 |
| AS396369US | CITYOFLUBBOCKTX - City of Lubbock | 512 | — | 2 |
| AS20254US | TCS-ASN-216-230-22-WHTSKY - Tuscaloosa City Schools | 512 | — | 1 |
| AS399769US | SLIMCD - Online Commerce Corp | 512 | — | 1 |
| AS399117US | GLI-CAR-DC1 - Greyhound Lines, Inc. | 512 | — | 2 |
| AS29972US | MOREHOUSEMEDICAL - Morehouse School of Medicine | 512 | — | 2 |
| AS26700US | FORTRESSAS - FORTRESS INVESTMENT GROUP LLC | 512 | — | 2 |
| AS54228US | INVTECHNOLOGIES - Invision Technologies, LLC | 512 | — | 2 |
| AS31973US | WPS-1765DC - Wisconsin Physicians Service Insurance Corp. | 512 | — | 2 |
| AS395240US | CARIAD-US - CARIAD, Inc. | 512 | — | 2 |
| AS19126US | KIZAWIRELESS - KIZA | 512 | — | 2 |
| AS10998US | BAC-MLAMRS - Bank of America, National Association | 512 | — | 2 |
| AS53323US | ION-CLEARWATER-TOC - The E.W. Scripps Company | 512 | — | 2 |
| AS961US | ACHIEVE-US - Achieve Wireless Inc | 512 | 257 | 4 |
| AS398786US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 512 | — | 2 |
| AS54883US | CORVA - City of Richmond, Virginia | 512 | — | 2 |
| AS15053US | ROLL-GLOBAL-LLC - Roll Global LLC | 512 | — | 2 |
| AS14100US | GARBERMAN01 - GARBER MANAGEMENT GROUP, INC. | 512 | — | 2 |