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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,110 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,246 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,954 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,419 |
| DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS5913US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5950US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5953US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5964US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5969US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5989US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5993US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6004US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6013US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6037US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6045US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6061US | OREILLYMEDIA-AS2 - O'Reilly Media, Inc. | — | — | 0 |
| AS6126US | CA-INC - Avago Technologies U.S. Inc. | — | — | 0 |
| AS6139US | SAUDI - Washington Coordinating Center | — | — | 0 |
| AS6154US | SPRINTLINK-NYSERNET5 - SPRINT, Business Serices Group | — | — | 0 |
| AS6176US | COGENT-6176 - Cogent Communications, LLC | — | — | 0 |
| AS6232US | WINS - Iowa Network Services (INS) | — | — | 0 |
| AS6273US | COGENT-6273 - Cogent Communications, LLC | — | — | 0 |
| AS6283US | LYCEUM - Lyceum Internet | — | — | 0 |
| AS6334US | ASN-TSG - Sabre GLBL Inc. | — | — | 0 |
| AS6357US | DBTECH - DB Technology | — | — | 0 |
| AS6371US | AMERICATEL - Americatel Corporation | — | — | 0 |
| AS6392US | MWCI-NET - MidWest Communications, Inc. | — | — | 0 |
| AS6398US | TELEDESIC - Teledesic Corporation | — | — | 0 |
| AS6430US | DIGITALINK - Digital Ink | — | — | 0 |
| AS6448US | QAD - QAD, Inc. | — | — | 0 |
| AS6465US | PAXIO - Paxio Inc. | — | — | 0 |
| AS6585US | AIMTECH - Aimtech Corp | — | — | 0 |
| AS6592US | NETUS - Netus, Inc. | — | — | 0 |
| AS6626US | MULTITASKING - Multi-Tasking, Inc. | — | — | 0 |
| AS6912US | HCSNET-ASNBLK - Hayes Computer Systems | — | — | 0 |
| AS6952US | WMEX - World Merchandise Exchange | — | — | 0 |
| AS6963US | DTS-CANADA - Diplomatic Telecommunications Services | — | — | 0 |
| AS7077US | NN-RS00-RS06 - NAP.NET, LLC | — | — | 0 |
| AS7085US | CARIN-AS-BLOCK - ISI | — | — | 0 |
| AS7098US | FRESH-MANAGED-AS - FRESH MANAGED IT, LLC | — | — | 0 |
| AS7112US | MTSI-ASN - MTS Internet, Inc. | — | — | 0 |
| AS7225US | GLOBALNETCORP - Global Net Corporation | — | — | 0 |
| AS7293US | SBIS-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS7327US | 7THLEVEL - 7th Level, Inc. | — | — | 0 |
| AS7343US | VISA-INTERACTIVE - Visa Interactive | — | — | 0 |
| AS7357US | AMERICANDATANET - American Data Net | — | — | 0 |
| AS7416US | UCM - UNICOM | — | — | 0 |
| AS7749US | VR1 - VR1 | — | — | 0 |
| AS7811US | ITOCHU - ITOCHU Techno-Solutions America, Inc. | — | — | 0 |
| AS7812US | AEGISSTAR-ASN1 - Aegis Star Corporation | — | — | 0 |