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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 20,988 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,578 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,934 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.3M | 4,544 |
| 25.9K |
| — |
| 28 |
| AS397122US | NORVADO-NET - Chequamegon Communications Cooperative, Inc. | 25.9K | 65.5K | 6 |
| AS399060US | BEC-COMM - BEC Communications, LLC | 25.6K | 65.5K | 38 |
| AS15149US | EZZI-101-BGP - Core Technology Services, Inc. | 25.6K | — | 7 |
| AS3361US | DF-TUKWILA01 - Digital Fortress, Inc. | 25.6K | 131.1K | 39 |
| AS19211US | HOSTINGYARD - HostingYard LLC | 25.6K | — | 55 |
| AS62957US | HOSPITALITY-NETWORK - HOSPITALITY NETWORK, LLC | 25.6K | — | 37 |
| AS19323US | HGE-NET - Holyoke Gas & Electric Department | 25.6K | 131.1K | 10 |
| AS398203US | MIDSOUTH-FIBER-AS - MidSouth Fiber | 25.6K | 65.5K | 5 |
| AS1280US | ISC-AS-1280 - Internet Systems Consortium, Inc. | 25.6K | 65.5K | 100 |
| AS22442US | HOU-PHONOSCOPE - Phonoscope, Inc. | 25.6K | 65.5K | 50 |
| AS10747US | EPIC-HOSTING - Epic Hosting, LLC | 25.6K | — | 24 |
| AS18834US | NETWORKIP - Network IP | 25.3K | — | 7 |
| AS4043US | MIC-ASN - Montana Internet Corporation | 25.3K | 65.5K | 5 |
| AS11676US | AS11676 - Conduent Business Services, LLC | 25.3K | — | 45 |
| AS402138US | BOLD-SWU-TX - Apogee Telecom Inc. | 25.3K | — | 5 |
| AS4307US | SVINET-1 - SOUTH VALLEY INTERNET | 25.3K | 65.5K | 23 |
| AS15290US | ZAYO-CAN-15290 - Zayo Bandwidth | 25.3K | 65.6K | 118 |
| AS23068US | MEIJERNET - MEIJER | 25.3K | — | 9 |
| AS11924US | MONTANA-OPTICOM - Montana Opticom, LLC | 25.1K | 65.5K | 44 |
| AS401764US | PURDUE-NW - Purdue University | 25.1K | — | 4 |
| AS19886US | BOFABROKERDEALERSVCS - Bank of America, National Association | 25.1K | — | 51 |
| AS395461US | APOG-AUSTIN - Apogee Telecom Inc. | 25.1K | 2 | 36 |
| AS400754US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 25.1K | — | 13 |
| AS8002US | STEALTH - Stealth Communications Services, LLC | 25.1K | 65.5K | 5 |
| AS13499US | CH-ENT-DC-IL - NEW CCH, LLC | 25.1K | — | 8 |
| AS394838US | PULSE - Pulse | 25.1K | 65.5K | 6 |
| AS1265US | SAINT-MARYS-AS - Saint Mary's College | 25.1K | — | 4 |
| AS27611US | STARRY-NY - Starry, Inc. | 25.1K | — | 9 |
| AS393844US | PINE-NET - Pine Telephone Company, INC. | 25.1K | — | 33 |
| AS26919US | ASN-CBCBH - Giggle Fiber | 25.1K | — | 28 |
| AS33494US | IHNET - IHNetworks, LLC | 25.1K | 65.5K | 45 |
| AS393713US | ALL-POINTS-BROADBAND-5 - All Points Broadband | 24.8K | 139.3K | 24 |
| AS8018US | VEL-AS - Velocity Networks, Inc. | 24.8K | — | 21 |
| AS26794US | DCN-AS - Dakota Carrier Network | 24.8K | 65.5K | 5 |
| AS64200US | VIVIDHOSTING - VIVID-HOSTING LLC | 24.8K | — | 60 |
| AS17035US | NBCUNI-17035 - NBCUniversal | 24.8K | — | 36 |
| AS16717US | CRAWKANINTERNET - Craw-Kan Telephone Cooperative Inc. | 24.8K | 65.5K | 9 |
| AS21719US | CHL - CHL | 24.8K | — | 20 |
| AS22460US | PEPSICO-NA - PepsiCo, Inc. | 24.8K | — | 69 |
| AS20413US | CHS1-20413 - Chesconet | 24.8K | 65.5K | 4 |
| AS10578US | GIGAPOP-NE - Harvard University | 24.8K | 12.5K | 11 |
| AS36728US | EMERYTELCOM - Emery Telcom | 24.8K | 1M | 9 |
| AS7268US | ATHENET - Athenet Internet Services | 24.6K | — | 3 |
| AS149US | DNIC-AS-00149 - United States Department of Defense (DoD) | 24.6K | — | 14 |
| AS23265US | POCKETINET - Pocketinet Communications, Inc | 24.6K | — | 4 |
| AS12067US | SHAWNEELINK - ShawneeLink Corporation | 24.6K | 65.5K | 7 |