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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 | 23,924 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| AS | Holder | IPv4 ↓ | IPv6 /48 | Prefixes |
|---|---|---|---|---|
| AS13598US | DAIMLERTRUCKS-NA-AS - DAIMLER TRUCKS OF NORTH AMERICA LLC | 5.6K | — | 10 |
| AS30148US | SUCURI-SEC - Sucuri | 5.6K | 20 | 29 |
| AS46401US | OMNISYNC-NETWORKS - OmniSync Networks | 5.6K | — | 20 |
| AS19648US | LDSCHURCH1 - Corporation of the Presiding Bishop of the Church of Jesus Christ of Latter-day Saints |
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| 5.6K |
| 196.9K |
| 11 |
| AS22937US | SHELDON-AS-1 - ACT USA | 5.6K | 65.5K | 7 |
| AS63275US | RADIOWIRE - RadioWire.net | 5.6K | — | 4 |
| AS20356US | BACAVALLEY-COM - SIERRA COMMUNICATIONS, INC. | 5.6K | — | 13 |
| AS40448US | HYPERLEAF1 - Hyperleaf, LLC | 5.6K | 1 | 23 |
| AS46454US | AS1 - WCS | 5.6K | — | 20 |
| AS36538US | SJCNET-ASN - San Jacinto College District | 5.6K | — | 7 |
| AS397068US | CAROLINACONNECT-01 - CarolinaConnect Cooperative | 5.6K | 66.6K | 32 |
| AS13572US | LAHEYCLINIC - Lahey Clinic, Inc. | 5.6K | — | 5 |
| AS26512US | BMSL-2-ARIN - Single Point Global, Inc. | 5.6K | 1 | 23 |
| AS29732US | CTE-ASN1 - Carolina Tractor and Equipment Company | 5.6K | — | 5 |
| AS46784US | DPW - Davis Polk & Wardwell, LLP | 5.6K | — | 22 |
| AS1651US | CABLELYNX - Cablelynx | 5.6K | — | 10 |
| AS36502US | CERNER-CORPORATE-AS - Cerner Corporation | 5.6K | — | 6 |
| AS21734US | TRADINGTECH-TTNET - Trading Technologies Intl, Inc. | 5.6K | — | 22 |
| AS396499US | COREBRIDGE-US-ISP - AIG Technologies Inc. | 5.6K | — | 10 |
| AS10392US | NSB1-NET - New Source Broadband | 5.6K | — | 14 |
| AS54057US | WST-INET - Wheat State Telephone, Inc. | 5.6K | — | 22 |
| AS399274US | CONNECT-INTERNET-BY-JASPER-REMC - Jasper County REMC | 5.6K | 69.6K | 5 |
| AS27541US | FTNET - Frontier Telenet | 5.6K | — | 9 |
| AS397766US | FDU-CA - Fairleigh Dickinson University | 5.6K | — | 3 |
| AS25655US | OSTK-COM - Overstock.com | 5.6K | — | 12 |
| AS399086US | FLIGHTAWARE-02 - FlightAware | 5.6K | 18 | 12 |
| AS35932US | SPLN-ASN-2020 - Splash Wireless Internet, LLC | 5.6K | — | 15 |
| AS14888US | FNNI-AS14888 - First National Bank of Omaha | 5.6K | — | 4 |
| AS32402US | ASN-TOWER - Tower Research Capital LLC | 5.6K | — | 7 |
| AS36563US | TELX-DALLAS - Telx | 5.6K | 65.5K | 5 |
| AS5726US | INTERWORLD - InterWorld Communications, Inc. | 5.6K | — | 19 |
| AS2728US | GIGSOUTH - Gigsouth, LLC | 5.6K | 10.2K | 24 |
| AS6210US | NFL1 - National Football League | 5.6K | — | 4 |
| AS13511US | UNIVI-2-ASN - Univision Communications Inc. | 5.6K | — | 12 |
| AS46785US | QUASAR-DATA-CENTER - QUASAR DATA CENTER, LTD. | 5.6K | — | 7 |
| AS15154US | SBBSNET - Network Services Group | 5.6K | 65.5K | 5 |
| AS46713US | IPGOMA - THE INTERPUBLIC GROUP OF COMPANIES, INC. | 5.6K | 65.5K | 5 |
| AS27385US | QUALYS - QUALYS, Inc. | 5.6K | 8 | 30 |
| AS16851US | NEBRASKALINK - NebraskaLink | 5.6K | 65.5K | 9 |
| AS23422US | ECL-1 - Endstream Communications, LLC | 5.6K | 65.5K | 24 |
| AS205993US | CAFETECNOLOGIA Cafe Tecnologia LLC | 5.4K | — | 12 |
| AS399296US | RD-BM - Rackdog, LLC | 5.4K | 1 | 21 |
| AS13431US | MILLENNIUM-AS - Millennium Partners, L.P. | 5.4K | — | 18 |
| AS29949US | BFS-49-29949 - Broadridge Financial Solutions, Inc. | 5.4K | — | 6 |
| AS965US | WEBHOSTINGHOLDINGS - Webhosting Holdings LLC | 5.4K | 16.4K | 23 |
| AS394330US | GIGFIRE - LTD Broadband LLC | 5.4K | 4.4K | 19 |
| AS396185US | PEMTEL - GILES-CRAIG COMMUNICATIONS INC. | 5.4K | — | 13 |
| AS54711US | HMS - Healthcare Management Systems, Inc. | 5.4K | — | 4 |
| AS54142US | WHITE-CLOUD-COMMUNICATIONS - White Cloud Communications US, LLC | 5.4K | — | 6 |
| AS12154US | INFOUSA - DATA AXLE, INC | 5.4K | — | 13 |