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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 |
| — |
| 0 |
| AS403000US | WARSAW-COMMUNITY-SCHOOLS - Warsaw | — | — | 0 |
| AS403004US | JP-US-IPLC - AirRabbit | — | — | 0 |
| AS403006US | ADVANCED-DATUM - Advanced | — | — | 0 |
| AS403074US | ELIORNA - Elior, | — | — | 0 |
| AS403076US | BAMNET-AS01 - BAM | — | — | 0 |
| AS403109US | RAINPROXY - Rainproxy | — | — | 0 |
| AS403172US | DATABRICKS-CORP - Databricks, | — | — | 0 |
| AS403199US | NETARGENT - Netargent | — | — | 0 |
| AS141US | DNIC-AS-00141 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS214US | DNIC-AS-00214 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS221US | WRALC-HOSTNET-AS - Air Force Systems Networking | — | — | 0 |
| AS227US | DNIC-AS-00227 - Headquarters, USAISC | — | — | 0 |
| AS417US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS431US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS493US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS516US | KODAK-BTC - Eastman Kodak Boston Technology Center | — | — | 0 |
| AS519US | ISCNET - Systemhouse/INTERACTIVE Systems | — | — | 0 |
| AS532US | DNIC-AS-00532 - United States Department of Defense (DoD) | — | — | 0 |
| AS562US | HPINC - HP Inc. | — | — | 0 |
| AS625US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS638US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS666US | CTNOSC-ASN-666 - Headquarters, USAISC | — | — | 0 |
| AS707US | ELAN-AS - Air Force Systems Networking | — | — | 0 |
| AS727US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS730US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS743US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS753US | MERIT-AS-19 - Merit Network Inc. | — | — | 0 |
| AS787US | DNIC-AS-00787 - United States Department of Defense (DoD) | — | — | 0 |
| AS795US | AMERITECH-AS - AT&T Services, Inc. | — | — | 0 |
| AS942US | FORK-AUX - FORK SYSTEMS | — | — | 0 |
| AS948US | JANTECHCS-AS - JanTech Computer Services | — | — | 0 |
| AS962US | UBERDUCK-ANYCAST - Uberduck, LLC | — | — | 0 |
| AS1020US | MWC-CHI-UUN - Midwest Cable | — | — | 0 |
| AS1028US | RO-LV-IL - Rosier Official | — | — | 0 |
| AS1220US | INFOASN-AS - INFONET Services Corporation | — | — | 0 |
| AS1242US | PLH-AS - Air Force Systems Networking | — | — | 0 |
| AS1298US | DNIC-AS-01298 - United States Department of Defense (DoD) | — | — | 0 |
| AS1310US | CACI-FED - CACI Inc., Federal | — | — | 0 |
| AS1314US | DNIC-AS-01314 - United States Department of Defense (DoD) | — | — | 0 |
| AS1363US | DNIC-AS-01363 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1381US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1388US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1431US | ALLCONET - Allegany County Public Schools | — | — | 0 |
| AS1470US | DNIC-ASBLK-01469-01470 - Headquarters, USAISC | — | — | 0 |
| AS1471US | DNIC-ASBLK-01471-01472 - Headquarters, USAISC | — | — | 0 |
| AS1526US | DNIC-ASBLK-01522-01526 - Headquarters, USAISC | — | — | 0 |