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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| 5.6K |
| — |
| 22 |
| AS400690US | KEYSTONE-SOLUTIONS - KSB Industries, LLC | 5.6K | — | 16 |
| AS6352US | ETRADE-AS - E*TRADE Financial Corporation | 5.6K | — | 19 |
| AS396499US | COREBRIDGE-US-ISP - AIG Technologies Inc. | 5.6K | — | 10 |
| AS10392US | NSB1-NET - New Source Broadband | 5.6K | — | 14 |
| AS11142US | PRECISION-DATA-SOLUTIONS - Precision Data Solutions, LLC | 5.6K | 65.5K | 5 |
| AS21965US | HIGHMARK - Highmark Inc | 5.6K | — | 22 |
| AS10457US | ILX-ASN - Refinitiv US LLC | 5.6K | — | 20 |
| AS40448US | HYPERLEAF1 - Hyperleaf, LLC | 5.6K | 1 | 23 |
| AS29732US | CTE-ASN1 - Carolina Tractor and Equipment Company | 5.6K | — | 5 |
| AS40605US | AITL-US - ANYCONNECT INFORMATION TECHNOLOGY CO., LTD | 5.6K | 4.1K | 20 |
| AS40850US | AS-UPIX-40850 - UPIX NETWORKS INTERNATIONAL LLC | 5.6K | 78.1K | 17 |
| AS46713US | IPGOMA - THE INTERPUBLIC GROUP OF COMPANIES, INC. | 5.6K | 65.5K | 5 |
| AS35932US | SPLN-ASN-2020 - Splash Wireless Internet, LLC | 5.6K | — | 15 |
| AS46785US | QUASAR-DATA-CENTER - QUASAR DATA CENTER, LTD. | 5.6K | — | 7 |
| AS26654US | RFA-IDC - Richard Fleischman & Assoc., Inc. | 5.6K | — | 9 |
| AS23422US | ECL-1 - Endstream Communications, LLC | 5.6K | 65.5K | 16 |
| AS32922US | ATCCOMMICATIONS - ATC Communications | 5.6K | 2 | 16 |
| AS397443US | LOWER-COLORADO-RIVER-AUTHORITY - Lower Colorado River Authority | 5.6K | — | 6 |
| AS1651US | CABLELYNX - Cablelynx | 5.6K | — | 10 |
| AS26324US | GARMIN-ASN-1 - GARMIN INTERNATIONAL INC. | 5.6K | 2 | 20 |
| AS399086US | FLIGHTAWARE-02 - FlightAware | 5.6K | 18 | 12 |
| AS13598US | DAIMLERTRUCKS-NA-AS - DAIMLER TRUCKS OF NORTH AMERICA LLC | 5.6K | — | 10 |
| AS26057US | MEDIAOCEAN - Mediaocean LLC | 5.6K | 9 | 26 |
| AS36563US | TELX-DALLAS - Telx | 5.6K | 65.5K | 5 |
| AS13511US | UNIVI-2-ASN - Univision Communications Inc. | 5.6K | — | 12 |
| AS20356US | BACAVALLEY-COM - SIERRA COMMUNICATIONS, INC. | 5.6K | — | 13 |
| AS13572US | LAHEYCLINIC - Lahey Clinic, Inc. | 5.6K | — | 5 |
| AS397766US | FDU-CA - Fairleigh Dickinson University | 5.6K | — | 3 |
| AS32829US | PORT-NETWORKS-BALTIMORE - Port Networks, Inc. | 5.6K | — | 11 |
| AS63275US | RADIOWIRE - RadioWire.net | 5.6K | — | 4 |
| AS396502US | HOTSPOTPR - HOTSPOTPR BROADBAND INTERNET, LLC | 5.6K | 4.1K | 21 |
| AS17073US | ALLEGISGROUP7312 - Allegis Group | 5.6K | — | 22 |
| AS54057US | WST-INET - Wheat State Telephone, Inc. | 5.6K | — | 22 |
| AS31835US | CONTOUR-NETWORKS - Contour Networks | 5.6K | — | 9 |
| AS31942US | HYPERFIBER-01 - HyperFiber | 5.6K | 4.6K | 42 |
| AS23522US | ASN-HRNET - GigeNET | 5.6K | — | 8 |
| AS55034US | IGGCOM - IGG.COM | 5.6K | — | 22 |
| AS40911US | L2NC-AS - L2Networks Corp. | 5.6K | — | 7 |
| AS401918US | HUA-8-ASN-01 - Humboldt Utilities Broadband | 5.6K | 65.5K | 9 |
| AS36207US | EFI-NWCO-G - ELEKTRAFI INC. | 5.6K | — | 15 |
| AS36502US | CERNER-CORPORATE-AS - Cerner Corporation | 5.6K | — | 6 |
| AS27541US | FTNET - Frontier Telenet | 5.6K | — | 9 |
| AS26512US | BMSL-2-ARIN - Single Point Global, Inc. | 5.6K | 1 | 23 |
| AS4996US | SBI - Citigroup Inc. | 5.6K | — | 22 |
| AS23061US | PIPELCC-AS - Pipe Networks LLC | 5.6K | — | 19 |
| AS14888US | FNNI-AS14888 - First National Bank of Omaha | 5.6K | — | 4 |