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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| 25.6K |
| — |
| 100 |
| AS398203US | MIDSOUTH-FIBER-AS - MidSouth Fiber | 25.6K | 65.5K | 5 |
| AS3361US | DF-TUKWILA01 - Digital Fortress, Inc. | 25.6K | 131.1K | 39 |
| AS17035US | NBCUNI-17035 - NBCUniversal | 25.3K | — | 38 |
| AS11676US | AS11676 - Conduent Business Services, LLC | 25.3K | — | 45 |
| AS1280US | ISC-AS-1280 - Internet Systems Consortium, Inc. | 25.3K | 65.5K | 99 |
| AS23068US | MEIJERNET - MEIJER | 25.3K | — | 9 |
| AS18434US | FNIS - Fidelity National Information Services, Inc. | 25.3K | — | 99 |
| AS18834US | NETWORKIP - Network IP | 25.3K | — | 7 |
| AS26666US | INTERSERVER-LAX - Interserver, Inc | 25.3K | 2.6M | 63 |
| AS4043US | MIC-ASN - Montana Internet Corporation | 25.3K | 65.5K | 5 |
| AS20413US | CHS1-20413 - Chesconet | 25.3K | 65.5K | 6 |
| AS400754US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 25.1K | — | 13 |
| AS33494US | IHNET - IHNetworks, LLC | 25.1K | 65.5K | 45 |
| AS1265US | SAINT-MARYS-AS - Saint Mary's College | 25.1K | — | 4 |
| AS27611US | STARRY-NY - Starry, Inc. | 25.1K | — | 9 |
| AS13499US | CH-ENT-DC-IL - NEW CCH, LLC | 25.1K | — | 8 |
| AS395461US | APOG-AUSTIN - Apogee Telecom Inc. | 25.1K | 2 | 36 |
| AS394838US | PULSE - Pulse | 25.1K | 65.5K | 6 |
| AS7488US | CNSERVER-AP-AS - CNServer LLC | 25.1K | 257 | 81 |
| AS393844US | PINE-NET - Pine Telephone Company, INC. | 25.1K | — | 33 |
| AS7226US | DATABANK-LATISYS - Latisys-Denver, LLC | 25.1K | 65.5K | 56 |
| AS4549US | ESPN-AS - ESPN, Inc. | 24.8K | — | 40 |
| AS401764US | PURDUE-NW - Purdue University | 24.8K | — | 3 |
| AS7361US | DATAZONE - DataZone Networks LLC | 24.8K | — | 63 |
| AS8018US | VEL-AS - Velocity Networks, Inc. | 24.8K | — | 21 |
| AS10578US | GIGAPOP-NE - Harvard University | 24.8K | 12.5K | 9 |
| AS395439US | JECNET - Jackson Electric Cooperative | 24.8K | 65.5K | 4 |
| AS21719US | CHL - CHL | 24.8K | — | 20 |
| AS26919US | ASN-CBCBH - Giggle Fiber | 24.8K | — | 27 |
| AS13791US | INTERNAP-BLK3 - Unitas Global | 24.8K | 65.5K | 23 |
| AS17404US | AS-UPTIMEPIPE - Pipe Networks LLC | 24.8K | — | 97 |
| AS36728US | EMERYTELCOM - Emery Telcom | 24.8K | 1M | 9 |
| AS26794US | DCN-AS - Dakota Carrier Network | 24.8K | 65.5K | 5 |
| AS393713US | ALL-POINTS-BROADBAND-5 - All Points Broadband | 24.8K | 139.3K | 24 |
| AS8002US | STEALTH - Stealth Communications Services, LLC | 24.8K | 65.5K | 4 |
| AS397504US | ECOLINK-01 - ecoLINK | 24.6K | — | 4 |
| AS399268US | CVT - Coosa Valley Technologies Inc | 24.6K | — | 6 |
| AS23265US | POCKETINET - Pocketinet Communications, Inc | 24.6K | — | 4 |
| AS7268US | ATHENET - Athenet Internet Services | 24.6K | — | 3 |
| AS36794US | META SOLUTIONS PIKETON - META Solutions | 24.6K | — | 26 |
| AS18463US | MILLPOND-NET-01 - Mill Pond Networks LLC | 24.6K | 32 | 5 |
| AS12067US | SHAWNEELINK - ShawneeLink Corporation | 24.6K | 65.5K | 7 |
| AS17356US | VERMONT-TELE - Vermont Telephone Company, Inc. | 24.6K | 65.5K | 5 |
| AS26356US | CRUSOE - CRUSOE ENERGY SYSTEMS LLC | 24.6K | — | 40 |
| AS13860US | LFG - Lincoln National Corporation | 24.6K | — | 26 |
| AS7871US | SEIDATA - SEI Data, Inc. | 24.6K | 65.5K | 5 |