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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| — |
| — |
| 0 |
| AS1444US | VCPI-ASN-1 - Virtual Care Provider, Inc. | — | — | 0 |
| AS1463US | DNIC-ASBLK-01462-01463 - Headquarters, USAISC | — | — | 0 |
| AS1497US | DNIC-ASBLK-01496-01497 - Headquarters, USAISC | — | — | 0 |
| AS1532US | DNIC-AS-01532 - Headquarters, USAISC | — | — | 0 |
| AS1545US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | — | — | 0 |
| AS1575US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1584US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1662US | VFN-BACKBONE - Verizon Business | — | — | 0 |
| AS1674US | ANS-SANFRAN - Verizon Business | — | — | 0 |
| AS1681US | ANS-CORP-MI - Verizon Business | — | — | 0 |
| AS1871US | HPINC - HP Inc. | — | — | 0 |
| AS1875US | SMU-GWB - Southern Methodist University | — | — | 0 |
| AS1972US | HPN-ISIE - USC/ISI | — | — | 0 |
| AS1988US | DNIC-AS-01988 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2005US | INFONET1 - INFONET Services Corporation | — | — | 0 |
| AS2019US | JPMORGAN-AS2019 - JPMorgan Chase & Co. | — | — | 0 |
| AS2163US | HPINC - HP Inc. | — | — | 0 |
| AS2168US | HPINC - HP Inc. | — | — | 0 |
| AS2630US | DNIC-AS-02630 - United States Department of Defense (DoD) | — | — | 0 |
| AS2634US | CELLCO-PART - Verizon Business | — | — | 0 |
| AS2882US | MERIT-AS-26 - Merit Network Inc. | — | — | 0 |
| AS2898US | GEORGIA-1S - Georgia Technology Authority | — | — | 0 |
| AS2929US | SUN-RM - Sun Company Inc. | — | — | 0 |
| AS2934US | TXASHLTH - Texas Health and Human Services Commission | — | — | 0 |
| AS2993US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2994US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2998US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3037US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3042US | LACHMAN-ASN - Lachman Technology, Inc. | — | — | 0 |
| AS3049US | RICE-AS3049 - Rice University | — | — | 0 |
| AS3362US | GROUP-NAMES - Data Transfer Group | — | — | 0 |
| AS3406US | UUN - UUN | — | — | 0 |
| AS3417US | DNIC-AS-03417 - United States Department of Defense (DoD) | — | — | 0 |
| AS3426US | ESNET-AS - ESnet | — | — | 0 |
| AS3432US | ESNET-AS - ESnet | — | — | 0 |
| AS3442US | ESNET-AS - ESnet | — | — | 0 |
| AS3445US | ESNET-AS - ESnet | — | — | 0 |
| AS3475US | DNIC-AS-03475 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS3521US | DSI-WR - RTX BBN Technologies, Inc. | — | — | 0 |
| AS3533US | DNIC-AS-03533 - United States Department of Defense (DoD) | — | — | 0 |
| AS3543US | DNIC-AS-03543 - United States Department of Defense (DoD) | — | — | 0 |
| AS3581US | OBS-NET - Open Business Systems Inc. | — | — | 0 |
| AS3600US | SUNNET-AS - Sun Networks, Inc. | — | — | 0 |
| AS3642US | GSA-PAN-DDN - GSA Data Communications and Networking Branch | — | — | 0 |
| AS3648US | COGENT-3648 - Cogent Communications, LLC | — | — | 0 |
| AS3652US | COGENT-3652 - Cogent Communications, LLC | — | — | 0 |