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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| — |
| — |
| 0 |
| AS19269US | FMRCOC-LEFT - FMR LLC | — | — | 0 |
| AS19143US | FWS-NET - U.S. Fish and Wildlife Service | — | — | 0 |
| AS21540US | WBD-US-WEST-ASN1 - Lewis Roca Rothgerber LLP | — | — | 0 |
| AS20377US | MLODE-COM - Cal.net, Inc. | — | — | 0 |
| AS20245US | VONAGE-20245 - Vonage Holdings, Inc. | — | — | 0 |
| AS16421US | NRT-HAWAII - Realogy Group LLC | — | — | 0 |
| AS16883US | 365DC-2 - BroadbandONE, LLC | — | — | 0 |
| AS6182US | MICROSOFT-CORP-MSN-AS-4 - Microsoft Corporation | — | — | 0 |
| AS5973US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5938US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5678US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5748US | BBNET - BB-Net, Inc. | — | — | 0 |
| AS5332US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5319US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS6146US | ZUORA - Zuora, Inc | — | — | 0 |
| AS6309US | GL-936-6309 - Gravabit LLC | — | — | 0 |
| AS6184US | DATASTORM - Datastorm Technologies, Inc. | — | — | 0 |
| AS7288US | PBI-NET-BLK2 - AT&T Enterprises, LLC | — | — | 0 |
| AS13746US | EVOLVEIP-AITECH - EvolveIP, LLC | — | — | 0 |
| AS13834US | AGLRSC - AGL Resources Inc. | — | — | 0 |
| AS13667US | VRIS-AS-BLOCK - Verizon Business | — | — | 0 |
| AS13663US | VRIS-AS-BLOCK - Verizon Business | — | — | 0 |
| AS10724US | HECENTER - Harbor Enterprise Center | — | — | 0 |
| AS12057US | LIVEVOX-2 - LiveVox, INC. | — | — | 0 |
| AS14995US | MASERGY-AS - Masergy Communications, Inc. | — | — | 0 |
| AS14960US | AS-IMPERVA-CLOUD-STG - Incapsula Inc | — | — | 0 |
| AS14033US | RBSLYNK-AS1 - Fidelity National Information Services, Inc. | — | — | 0 |
| AS6923US | OKNET - OKNET Internet Services | — | — | 0 |
| AS22570US | AUTODESK-1 - Autodesk, Inc. | — | — | 0 |
| AS22958US | FIDELITY-001 - Fusion, LLC | — | — | 0 |
| AS22277US | TIL-ASN - Torchlight Investors, LLC | — | — | 0 |
| AS23215US | MEGAPATH-US - GTT Americas, LLC | — | — | 0 |
| AS25698US | SMART-CITY - Smart City Telecom | — | — | 0 |
| AS15109US | TRAPP-ONLINE-02 - Trapp Online, LLC | — | — | 0 |
| AS23276US | WINTSEC - Wintsec Technologies, LLC | — | — | 0 |
| AS23110US | AS-FSNET - FS Net LLC | — | — | 0 |
| AS23108US | QUANTACT - Big | — | — | 0 |
| AS54852US | F4-NETWORKS - F4 Networks | — | 1 | 1 |
| AS7126US | UNITEDMEDIA - United Media | — | — | 0 |
| AS6985US | DIXON - Dixon Networking | — | — | 0 |
| AS7205US | POINTBREAK - PointBreak Communications SystemsAG | — | — | 0 |
| AS6480US | LITLE - LitleNet, LLC | — | — | 0 |
| AS6587US | AMICUS-ASN - Amicus Networks | — | — | 0 |
| AS8049US | POL-AS - Productivity OnLine | — | — | 0 |
| AS8043US | LVLT-8043 - Level 3 Parent, LLC | — | — | 0 |
| AS398849US | DSS-CACHE - Disney Streaming Services | — | — | 0 |