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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 |
| 8.2K |
| — |
| 20 |
| AS400869US | BETHLEHEM-AREA-SCHOOL-DISTRICT - Bethlehem Area School District | 8.2K | — | 1 |
| AS27195US | CAVERN-TECHNOLOGIES - EPIC Alliance, Inc. | 8.2K | 65.5K | 24 |
| AS23030US | UNIVERSITY-OF-HOUSTON---DOWNTOWN - University of Houston - Downtown | 8.2K | — | 1 |
| AS400893US | AS-FIBERCONNECT - Fiber Connect, LLC. | 8.2K | — | 15 |
| AS15114US | HOSTDEPOT-ASN - Host Depot, Inc. | 8.2K | — | 1 |
| AS6566US | TROWE-NET - T. Rowe Price | 8.2K | — | 17 |
| AS11017US | CPN - CSN Support Services | 8.2K | 32 | 8 |
| AS55045US | TEKTONIC - TekTonic | 8.2K | 1 | 15 |
| AS13480US | OGOPS - Ongoing Operations, LLC | 8.2K | — | 25 |
| AS11595US | NETSONIC - Netsonic | 8.2K | — | 2 |
| AS27400US | CLEARFLY - Clearfly Communications | 8.2K | 65.5K | 9 |
| AS11919US | LORAL-SKYNET-AR - Telesat Network Services Inc | 8.2K | — | 1 |
| AS54488US | QXC-COMMUNICATIONS - QxC Communications, Inc. | 8.2K | — | 7 |
| AS22601US | BONNPOWERNET - Bonneville Power Administration | 8.2K | 260 | 7 |
| AS26860US | SWTC - SWIFTEL COMMUNICATIONS | 8.2K | 65.5K | 2 |
| AS26748US | AS-HSHS - Hospital Sisters Health Systems | 8.2K | — | 1 |
| AS30462US | NEXGEN - NexGen Integrated Communications LLC | 8.2K | — | 8 |
| AS8131US | PEPBOYS - Pep Boys | 8.2K | — | 2 |
| AS18723US | SEAGATE-USA-CA-1 - Seagate Technology LLC | 8.2K | — | 22 |
| AS32162US | CLIU21 - Carbon Lehigh Intermediate Unit 21 | 8.2K | — | 2 |
| AS19945US | GRANBURYISD - Granbury Independent School District | 8.2K | 64 | 2 |
| AS21709US | IMPLEX-NET - Implex.net, Inc. | 8.2K | — | 2 |
| AS40944US | MASSCOL - Mass College of Liberal Arts | 8.2K | — | 3 |
| AS36094US | WORCESTER-STATE-COLLEGE - Worcester State University | 8.2K | — | 1 |
| AS7024US | PIXELGATE - PixelGate | 8.2K | — | 1 |
| AS30698US | BOSCH - Robert Bosch LLC | 8.2K | 65.8K | 34 |
| AS18519US | MEDIAPOLIS-TELEPHONE-COMPANY - MTC Technologies | 8.2K | 65.5K | 5 |
| AS40395US | VIRTBIZ-DALLAS - VIRTBIZ Internet Services | 8.2K | 65.5K | 33 |
| AS393408US | UNIV-PORTLAND - University of Portland | 8.2K | — | 17 |
| AS19082US | EVERESTBROADBAND - Everest BBN, Inc. | 8.2K | — | 1 |
| AS22297US | OPTI9-CANADA - Jelecos LLC | 8.2K | 65.5K | 30 |
| AS7146US | GABN - Georgia Business Net, Inc | 8.2K | — | 1 |
| AS393705US | LYTEFIBER-01 - Lyte Fiber, LLC | 8.2K | 65.5K | 2 |
| AS394712US | NYSOSC - New York State Office of the State Comptroller | 8.2K | — | 1 |
| AS13866US | CCOUNTRY - Computer Country | 8.2K | 4.1K | 8 |
| AS399896US | VWNA-AS3 - Volkswagen Group of America, Inc. | 8.2K | — | 1 |
| AS394744US | RMC-ASN1 - Randolph-Macon College | 8.2K | — | 1 |
| AS23497US | NCWCOM - NORTH COAST WIRELESS COMMUNICATIONS LLC | 8.2K | — | 32 |
| AS397103US | WAVEFLY-AS397103 - REV | 8.2K | — | 3 |
| AS15223US | TXWES - Texas Wesleyan University | 8.2K | — | 1 |
| AS20318US | NIACOM - Niacom Holdings, LLC | 8.2K | 65.5K | 2 |
| AS30712US | META-SOLUTIONS-DAYTON - META Solutions | 8.2K | — | 17 |
| AS31893US | H5COLO - H5 Colo Associates LLC | 8.2K | — | 4 |
| AS54932US | M3-WIRELESS - M3 Wireless Inc. | 8.2K | — | 32 |
| AS6551US | MOBILETNET - America ISP | 8.2K | — | 1 |
| AS33725US | WCM-EVANSVILLE - Watch Communications | 8.2K | — | 4 |