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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 | 3,136 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.5M | 20,721 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 73.1M | 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC |
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.
| 68.3M |
| 366 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 66.4M | 1,106 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 47.9M | 3,574 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,926 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.2M | 4,508 |
| THEMALL - Internet in a Mall, Inc |
| — |
| — |
| 0 |
| AS7113US | NFIC-AS - New Frontiers Information Corp. | — | — | 0 |
| AS6990US | ONE-O - One-O, Inc. | — | — | 0 |
| AS67US | SDC-PRC-AS - Unisys Corporation | — | — | 0 |
| AS139242US | CSL-AS-AP - Cloudflare Sydney, LLC | — | 1 | 1 |
| AS6552US | C2NET - Community ConneXion, Inc. | — | — | 0 |
| AS208884US | flew Jacob Rizzo | — | 4 | 4 |
| AS6469US | ARTEMIS - Artemis Research | — | — | 0 |
| AS575US | DNIC-AS-00575 - Headquarters, USAISC | — | 256 | 1 |
| AS6375US | XROADS - Crossroads Communications | — | — | 0 |
| AS6603US | MTWEST208 - CottonWood CyberVentures | — | — | 0 |
| AS6417US | AGENTS-INC - Agents, Inc. | — | — | 0 |
| AS11873US | USAID-1 - U.S. Agency for International Development | — | 1 | 1 |
| AS8120US | BESTWEB - FirstLight Fiber, Inc. | — | — | 0 |
| AS8064US | UABMC - University of Alabama at Birmingham Medical Center | — | — | 0 |
| AS214092US | Zachary-Ezetta Zachary Ezetta | — | 1 | 1 |
| AS6020US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS982US | PACKETFRAME - Packetframe | — | 1 | 1 |
| AS2825US | DB-NA-2 - Deutsche Bank AG | — | — | 0 |
| AS61387US | Cloudco-LLC Cloudco LLC | — | 1 | 1 |
| AS6000US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS200731US | JSN-AS Jonathan Smith | — | 9 | 9 |
| AS1915US | SEQUOIA-AS - National Science Foundation | — | — | 0 |
| AS5887US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 1 | 1 |
| AS1867US | DISN-PILOTNET13 - RTX BBN Technologies, Inc. | — | — | 0 |
| AS200878US | CHRISP Christopher Thomas | — | 1 | 1 |
| AS1455US | DNIC-ASBLK-01451-01456 - Headquarters, USAISC | — | — | 0 |
| AS399011US | C3AERO - C3Aero LLC | — | 1 | 1 |
| AS1557US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS206540US | TOWNBUS BEANSUMMERHOST NEXTGEN SHED HOSTING SOLUTIONS LLC | — | 26 | 11 |
| AS1016US | TECHNOTIC-SPORTS - Technotic Sports, LLC | — | — | 0 |
| AS262US | VERIO - NTT America, Inc. | — | 1 | 1 |
| AS1795US | COGENT-1795 - Cogent Communications, LLC | — | — | 0 |
| AS4099US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4078US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS3990US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS6288US | PERTECH-CA-01 - PerTech Inc. | — | — | 0 |
| AS63437US | ARBOREAL-STUDIOS-01 - Arboreal Studios Inc. | — | 1 | 1 |
| AS3074US | CITI8 - Citigroup Inc. | — | — | 0 |
| AS26701US | AADS - NCRYPTD LLC | — | 1 | 1 |
| AS3116US | PPCI - Point to Point Communications, Inc. | — | — | 0 |
| AS3764US | IA-HOU-AS - JAB Wireless, INC. | — | — | 0 |
| AS3781US | USBM-PGH - U.S. Department of the Interior | — | — | 0 |
| AS402325US | SOUTHERN-TIER-NETWORK-NY - Southern | — | — | 0 |
| AS3625US | MCIASN-2-BLK - Verizon Business | — | — | 0 |
| AS354US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | 512 | 2 |
| AS402112US | TABAR-1 - Tabarruk | — | — | 0 |