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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,254 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,726 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,965 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,346 |
| — |
| — |
| 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 |
| AS5727US | WORLDNET-0 - AT&T Enterprises, LLC | — | — | 0 |
| AS5741US | EPICOR - Epicor Software Corporation | — | — | 0 |
| AS5780US | GIGASD3 - Giga Information Group | — | — | 0 |
| AS5792US | SIMPLE-NET - Simple Access | — | — | 0 |
| AS5796US | COMET - Metronetics | — | — | 0 |
| AS5801US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5814US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5857US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5861US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5867US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5884US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5977US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5991US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5994US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6002US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6151US | Q-AS - Allen, Bradley Ward | — | — | 0 |
| AS6162US | ISI-ISP - Integration Specialists, Inc. | — | — | 0 |
| AS6166US | RADIOMAIL - Radiomail Corp | — | — | 0 |
| AS6242US | TELEMAIL - Sprint Communications Corp. | — | — | 0 |
| AS6258US | NYEZ-ASN - Telecon Communications Corp. | — | — | 0 |
| AS6270US | COGENT-6270 - Cogent Communications, LLC | — | — | 0 |
| AS6329US | AIG-EMEA-BACKBONE - AIG Technologies Inc. | — | — | 0 |
| AS6333US | INFOCOM - infocom, inc. | — | — | 0 |
| AS6459US | TRANSBEAM - I-2000, Inc. | — | — | 0 |