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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS5948US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5949US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5959US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6000US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6007US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6008US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6016US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6020US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6032US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6038US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6137US | SISNA - SISNA, Inc. | — | — | 0 |
| AS6156US | SPRINTLINK-NYSERNET7 - SPRINT, Business Serices Group | — | — | 0 |
| AS6165US | AS-LYRIS - Lyris Technology Inc. | — | — | 0 |
| AS6202US | NEXTRON - IMV/Internet | — | — | 0 |
| AS6271US | COGENT-6271 - Cogent Communications, LLC | — | — | 0 |
| AS6277US | COGENT-6277 - Cogent Communications, LLC | — | — | 0 |
| AS6288US | PERTECH-CA-01 - PerTech Inc. | — | — | 0 |
| AS6317US | MILLENNIANET - MillenniaNet, LLC | — | — | 0 |
| AS6365US | AS6365NET - Internet 1st, Inc. | — | — | 0 |
| AS6374US | MFS-WEST-AS - MFS Global Network Services, Inc. | — | — | 0 |
| AS6380US | BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS6390US | KANSASCITY - The Kansas City Star | — | — | 0 |
| AS6393US | PRYSM-AS - Prysm Technologies | — | — | 0 |
| AS6414US | IPNET - Thurber Technology Group | — | — | 0 |
| AS6415US | SILICONREEF - Silicon Reef, Inc. | — | — | 0 |
| AS6416US | NOVELL-AS - Micro Focus | — | — | 0 |
| AS6441US | BIGBOOK - BigBook | — | — | 0 |
| AS6447US | ROUTEVIEWS - University of Oregon | — | — | 0 |
| AS6460US | INTERNEXT - InterNext | — | — | 0 |
| AS6500US | NEXUS-22-6500 - Nexusguard, Inc | — | — | 0 |
| AS6554US | BDM - BDM Federal, Inc. | — | — | 0 |
| AS6593US | CITIZEN1 - Citizen 1 Software | — | — | 0 |
| AS6616US | DATASTAR - Datastar, Inc. | — | — | 0 |
| AS6627US | GRAPEVINE - Grapevine Systems, Inc. | — | — | 0 |
| AS6641US | SPORTSLINE - SportsLine USA Inc. | — | — | 0 |
| AS6918US | PENNCOM - Penncom Internet Co. | — | — | 0 |
| AS6926US | SOLLUNA-AS - Solluna | — | — | 0 |
| AS6938US | GREENLAKE-IOC - Greenlake/IOC | — | — | 0 |
| AS6981US | AS11456 - Windstream Communications LLC | — | — | 0 |
| AS6983US | ITCDELTA - Windstream Communications LLC | — | — | 0 |
| AS7006US | CYBERNEX - Cybernex Inc. | — | — | 0 |
| AS7072US | NN-RS00-RS06 - NAP.NET, LLC | — | — | 0 |
| AS7074US | NN-RS00-RS06 - NAP.NET, LLC | — | — | 0 |
| AS7081US | CARIN-AS-BLOCK - ISI | — | — | 0 |
| AS7107US | 3DO - The 3DO Company | — | — | 0 |
| AS7129US | ANC-AS - American Network Communications, Inc. | — | — | 0 |