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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS686US | OSD-GW-AS - 7th Communications Group/GNE | — | — | 0 |
| AS699US | AMAZON-LEO-TERRESTRIAL - Amazon Technologies Inc. | — | — | 0 |
| AS731US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS756US | MERIT-AS-22 - Merit Network Inc. | — | — | 0 |
| AS785US | DNIC-AS-00785 - Headquarters, USAISC | — | — | 0 |
| AS1006US | RACKDOG - Rackdog, LLC | — | — | 0 |
| AS1042US | APPLE-CDN - Apple Inc. | — | — | 0 |
| AS1211US | DNIC-AS-01211 - Headquarters, USAISC | — | — | 0 |
| AS1256US | MASSNET-AS - UMASSNET | — | — | 0 |
| AS1329US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1357US | ORYX-ENERGY-AS - Oryx Energy Company | — | — | 0 |
| AS1364US | DNIC-AS-01364 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1389US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1511US | DNIC-AS-01511 - Headquarters, USAISC | — | — | 0 |
| AS1513US | DNIC-ASBLK-01513-01518 - Headquarters, USAISC | — | — | 0 |
| AS1533US | DNIC-AS-01533 - Headquarters, USAISC | — | — | 0 |
| AS1537US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | — | — | 0 |
| AS1541US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | — | — | 0 |
| AS1579US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1594US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1596US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1607US | CAROLINA-DIGITAL-AS1607 - Carolina Digital Phone, Inc. | — | — | 0 |
| AS1608US | ITG - ITG INC | — | — | 0 |
| AS1660US | ANS-CORP-NY - Verizon Business | — | — | 0 |
| AS1664US | AOL-CORP - Yahoo Holdings Inc. | — | — | 0 |
| AS1749US | AS1749 - National Aeronautics and Space Administration | — | — | 0 |
| AS1753US | OBT-ESCOM - Ohio Bell Telephone Co. | — | — | 0 |
| AS1758US | AFMPCGW1-AS - Air Force Systems Networking | — | — | 0 |
| AS1789US | COGENT-1789 - Cogent Communications, LLC | — | — | 0 |
| AS1822US | PHXAS - Virtual Radiologic Corporation | — | — | 0 |
| AS1873US | HPINC - HP Inc. | — | — | 0 |
| AS1957US | ANSCIX-AS - Verizon Business | — | — | 0 |
| AS1984US | DNIC-AS-01984 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2139US | DOW1-AS - Houston Dow Center | — | — | 0 |
| AS2161US | HPINC - HP Inc. | — | — | 0 |
| AS2162US | HPINC - HP Inc. | — | — | 0 |
| AS2170US | HPINC - HP Inc. | — | — | 0 |
| AS2171US | HPINC - HP Inc. | — | — | 0 |
| AS2545US | STRATHOST - Air Force Systems Networking | — | — | 0 |
| AS2565US | QUANTUM-LOOPHOLE - Quantum Loophole, Inc. | — | — | 0 |
| AS2619US | DNIC-ASBLK-02616-02620 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2625US | DNIC-RAS-02625 - United States Department of Defense (DoD) | — | — | 0 |
| AS2627US | DNIC-AS-02627 - United States Department of Defense (DoD) | — | — | 0 |
| AS2696US | IREN-AS - Iowa Research and Education Network | — | — | 0 |
| AS2702US | INTERSERVE - Novx Systems, Inc | — | — | 0 |
| AS2743US | AFIWC01 - Air Force Systems Networking | — | — | 0 |