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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 |
| AS4245US | ECHO-AS - Echo Communications Group, Inc. | — | — | 0 |
| AS400743US | SPACESHIP-LANDINGS - Spaceship Landings LLC | — | 1 | 1 |
| AS3505US | WINDSTREAM - Windstream Communications LLC | — | — | 0 |
| AS55223US | BGP-NETWORKS-LLC - BGP Networks LLC | — | 3 | 3 |
| AS3004US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS33760US | UWUNET - Ashton Holmes, Sole Proprietorship | — | 5 | 5 |
| AS4183US | UUNET-MCIWCOM - Verizon Business | — | — | 0 |
| AS401431US | BLUE-QUARTZ-0 - Blue Quartz | — | 5 | 5 |
| AS4161US | TIN-1 - Air Force Systems Networking | — | — | 0 |
| AS200690US | YOURSUNNY-AS Junxiao Shi | — | 39 | 9 |
| AS4068US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS139242US | CSL-AS-AP - Cloudflare Sydney, LLC | — | 2 | 2 |
| AS3046US | RICE-AS3046 - Rice University | — | — | 0 |
| AS401947US | TRIAD-PATHFINDERS - Triad Pathfinders LLC | — | 2 | 2 |
| AS394593US | MATROID - Matroid, Inc. | — | 1 | 1 |
| AS218798US | Reboot-Labs Reboot Labs LLC | — | 458.8K | 15 |
| AS64268US | PEOPLENETCOMMUNICATIONS - PeopleNet Communications Corp | — | — | 0 |
| AS14482US | LAB47 - Lab47 | — | 256 | 1 |
| AS63259US | WCAPITAL - W Capital Management, LLC | — | — | 0 |
| AS207556US | SERVERFORGE - ServerForge LLC | — | 64 | 1 |
| AS63444US | AS-SMARTERTRAVEL - TripAdvisor LLC | — | — | 0 |
| AS207071US | FOX-NETWORK-AS Joshua Jones | — | 3 | 3 |
| AS62704US | DCLOUD9 - Dealer's Cloud, Corp | — | — | 0 |
| AS395250US | AS-BMSO365 - Bristol-Myers Squibb Company | — | 24 | 4 |
| AS32060US | CHARTER-32060-NA - Charter Communications LLC | — | — | 0 |
| AS3754US | NYSERNET3-AS - NYSERNet | — | 1 | 1 |
| AS40846US | 3EX HOSTING BOCA RATON LLC - 3EX Hosting Boca Raton LLC | — | — | 0 |
| AS401821US | CYGNUS-NETWORK-A - Cygnus Networks LLC | — | 3.1M | 6 |
| AS399779US | MOCIX - HYEHOST LLC | — | 1 | 1 |
| AS400546US | EXAGRID-ASN - Exagrid | — | 2 | 2 |
| AS30411US | CHARTER-30411-NA - Charter Communications LLC | — | — | 0 |
| AS214085US | JUNIPERCIRCUIT-AS Eugene Lapidous | — | 1 | 1 |
| AS33612US | TUMBLR - Yahoo Holdings Inc. | — | — | 0 |
| AS396968US | IMPUT - imput | — | 3 | 3 |
| AS33649US | SHENTEL - Shenandoah Cable Television LLC | — | — | 0 |
| AS33291US | MANOV-ISP - Manov Investments, LLC | — | — | 0 |
| AS32652US | ASHERECHICAGODC - HERE North America LLC | — | — | 0 |
| AS200360US | FOLF-SYSTEMS-AS Cooper Greer | — | 22 | 4 |
| AS33269US | VONAGE-BUSINESS - Vonage Business Inc. | — | — | 0 |
| AS62925US | CRENET-ASN-01 - CRE NETWORK, LLC | — | 32 | 2 |
| AS33047US | AKAMAI-INSTART-ASN - Akamai Technologies, Inc. | — | — | 0 |
| AS403024US | HOP179-AS - Hop179 | — | 17 | 2 |
| AS19641US | TIHC-DC4 - TI Intermediate Holdings, LLC | — | — | 0 |
| AS219525US | DaleNetworks Jevin Dale | — | 1 | 1 |
| AS215188US | KALLSYMS Nicholas Gregory | — | 16 | 1 |
| AS210660US | CAVEFOX CaveFox LLC | — | 257 | 2 |