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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,749 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,226 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| — |
| — |
| 0 |
| AS4012US | DCM - DCM | — | — | 0 |
| AS4033US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4044US | AKSI-NET-AS - Acquired Knowledge Systems, Inc. | — | — | 0 |
| AS4075US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4080US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4100US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4126US | SPTEL2 - SP Tel | — | — | 0 |
| AS4137US | DIRECTNET - Burningate, Inc. | — | — | 0 |
| AS4157US | USDA-1 - USDA | — | — | 0 |
| AS4165US | DNIC-AS-04165 - United States Department of Defense (DoD) | — | — | 0 |
| AS4187US | INFOBAHN - infobahn | — | — | 0 |
| AS4189US | OSSHENET1 - OSSHENET1 | — | — | 0 |
| AS4214US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | — | 0 |
| AS4238US | TX-TREASNET - Texas Treasury | — | — | 0 |
| AS4289US | CENTURYLINK-TSDS-WILCRS - CenturyLink Communications, LLC | — | — | 0 |
| AS4345US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4379US | DNIC-AS-04379 - United States Department of Defense (DoD) | — | — | 0 |
| AS4436US | AS-GTT-4436 - GTT Americas, LLC | — | — | 0 |
| AS4437US | WEBB - Webb Systems | — | — | 0 |
| AS4464US | TWNAO-AS - DPRO Honeywell/Alliant Tech Systems | — | — | 0 |
| AS4465US | EASYLINK1 - AT&T Enterprises, LLC | — | — | 0 |
| AS4499US | FODOR-ASN - Web Net Communications, Inc. | — | — | 0 |
| AS4521US | MIRACLE - Miracle Net Communication | — | — | 0 |
| AS4584US | PTI-NET - PTI Holdings, Inc. | — | — | 0 |
| AS4591US | SYRANET-GW - Consultix Computer Services | — | — | 0 |
| AS4937US | IAMERICA-NET - Internet America, Inc. | — | — | 0 |
| AS4945US | HARRIS-SEMICONDUCTOR - Harris Semiconductor Sector Telecommunications | — | — | 0 |
| AS4946US | DEDICATEDSOLUTIONS - DedicatedSolutions.com LLC | — | — | 0 |
| AS5010US | KISNET-1 - KISNET Corporation | — | — | 0 |
| AS5016US | BRAGG-NEC - Headquarters, USAISC | — | — | 0 |
| AS5030US | TAL - Transamerica Leasing | — | — | 0 |
| AS5100US | ASN-TX-DDC - Tristero, Inc. | — | — | 0 |
| AS5126US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5138US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5169US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5190US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5197US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5208US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5230US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5308US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5355US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5366US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5496US | WIREHUB GTT Communications Inc. | — | — | 0 |
| AS5658US | CCE-NET - The Coca-Cola Company | — | — | 0 |
| AS5660US | JCI-NET - Johnson Control | — | — | 0 |
| AS5714US | HPINC - HP Inc. | — | — | 0 |