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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 | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 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 | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| — |
| — |
| 0 |
| AS4438US | NEPTUNE - Neptune Travel Industry Network | — | — | 0 |
| AS4453US | TDS-TELECOM - TDS TELECOM | — | — | 0 |
| AS4467US | EASYLINK3 - AT&T Enterprises, LLC | — | — | 0 |
| AS4478US | PNET-STL - P-Net, Inc. | — | — | 0 |
| AS4481US | CMS-AS2 - Air Force Systems Networking | — | — | 0 |
| AS4506US | SEW-AS - SEW, Inc. | — | — | 0 |
| AS4532US | ARCHTOP-FIBER-WVTC01 - Archtop Fiber | — | — | 0 |
| AS4534US | IXA-ASN - Interconnected Associates (IXA) Inc. | — | — | 0 |
| AS4558US | CL-260-4558 - CyrusOne LLC | — | — | 0 |
| AS4572US | JAXINTER - Jacksonville Internet Service | — | — | 0 |
| AS4582US | REALLINK - RealLink, Inc. | — | — | 0 |
| AS4599US | MINNNET-NET - MinnNet Coummunications, Inc. | — | — | 0 |
| AS4602US | DNIC-AS-04602 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS4904US | COATUE - Coatue Management | — | — | 0 |
| AS4915US | TRANE-UPG - The TRANE Co.UPG | — | — | 0 |
| AS4930US | DMG1 - Digital Management Group | — | — | 0 |
| AS4955US | NDL - Network Datalink, Inc. | — | — | 0 |
| AS4959US | CORPCOMM - Corporate Communications, Inc. | — | — | 0 |
| AS4975US | LASER-NET-BLOCK - Computer Tech Services, Inc. | — | — | 0 |
| AS4978US | GDI-NET-AS - Global Datalink, Inc. | — | — | 0 |
| AS5003US | GIGAN-2 - Insync Internet Services, Inc. | — | — | 0 |
| AS5007US | COMPUTOPIA - Computopia | — | — | 0 |
| AS5021US | PACAF-GCCS - Air Force Systems Networking | — | — | 0 |
| AS5028US | GATEWAYNORTH - Evergreen Technologies Corporation | — | — | 0 |
| AS5076US | SYNOPTEK - Synoptek, LLC | — | — | 0 |
| AS5083US | DRAKE-NET - Dnet Internet Services | — | — | 0 |
| AS5086US | IDNET - Innovative Data Services | — | — | 0 |
| AS5095US | BOOKLINK-AS - Booklink/Navisoft | — | — | 0 |
| AS5129US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5139US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5148US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5200US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5229US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5231US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5232US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5252US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5258US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5281US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5315US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5320US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5339US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5362US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5637US | SAF-HOLLAND - SAF HOLLAND INC. | — | — | 0 |
| AS5644US | ASN-USA - USAinternet, Inc. | — | — | 0 |
| AS5665US | DELMARVA-ASN - Delmarva Power & Light Company | — | — | 0 |
| AS5673US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |