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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| 1K |
| — |
| 2 |
| AS17318US | DOMAINTOOLS - DomainTools, LLC | 1K | — | 1 |
| AS398223US | POMONA-01 - Pomona Consulting LLC | 1K | 6 | 10 |
| AS54072US | ASN-CCC - Central Community College | 1K | — | 4 |
| AS63445US | CFG - Cetera Financial Group, Inc. | 1K | — | 3 |
| AS62665US | VNL-AS01 - Vanta Hosting | 1K | — | 1 |
| AS32987US | AS080780 - Clnetworks Inc | 1K | — | 3 |
| AS39954US | GATEWAYTC - Gateway Technical College | 1K | — | 4 |
| AS19539US | IPONLY-US-AS - IP-Only Inc | 1K | 65.5K | 2 |
| AS46388US | MXI-SOLUTIONS - Max Internet Solutions LLC | 1K | — | 1 |
| AS394001US | RRISD-AS-1 - Round Rock Independent School District | 1K | — | 3 |
| AS62644US | NBCSN-DMZ - NBC Sports Network | 1K | — | 4 |
| AS22912US | CITGO-PETROLEUM - CITGO PETROLEUM CORPORATION | 1K | — | 4 |
| AS14424US | ANDERINGERSTA - A.N. Deringer, Inc. | 1K | — | 2 |
| AS25898US | FULL-SAIL-INC - Full Sail, Inc. | 1K | — | 4 |
| AS398908US | SMYTHNET - Smyth Technology Group, Incorporated | 1K | — | 3 |
| AS18443US | APSC - Alyeska Pipeline Service Company | 1K | — | 3 |
| AS400694US | RPTA-ASN-01 - Valley Metro | 1K | — | 3 |
| AS396091US | UKRC-P1 - The Northern Trust Company | 1K | — | 1 |
| AS32386US | FASTNET-WIRELESS-LLC - Fastnet Wireless LLC | 1K | — | 1 |
| AS396216US | BRIDGEDBB-01 - Bridged Broadband, LLC | 1K | 6.1K | 5 |
| AS11110US | SERVERCLOUD - SERVERCLOUD | 1K | 65.5K | 2 |
| AS398726US | CABBIT-TECH-01 - Cabbit Technology LLC | 1K | — | 1 |
| AS395451US | HOSTIT - HostIT Servers | 1K | — | 1 |
| AS46471US | MCRESAS01 - Madison Commercial Real Estate Services, LLC | 1K | — | 1 |
| AS20325US | PATELCOCU - Patelco Credit Union | 1K | — | 3 |
| AS13382US | BSG-ORD - Business Solutions Group, LLC | 1K | 256 | 2 |
| AS32511US | ASANTEHEALTHSYSTEM-1 - Asante Health System | 1K | — | 1 |
| AS5054US | REALNETWORKS - REALNETWORKS LLC | 1K | — | 1 |
| AS1702US | CCHICAGO-STATE-UNIVERSITY - CHICAGO STATE UNIVERSITY | 1K | — | 1 |
| AS23094US | YELLOWBOOK - hibu inc. | 1K | — | 4 |
| AS35929US | BLS - Bend-La Pine Schools | 1K | 64 | 2 |
| AS40493US | GAYLORD PACIFIC IP MANAGEMENT - Gaylord Pacific Resort and Convention Center | 1K | — | 2 |
| AS398854US | ULTRANETWIFI - Ultranet, LLC | 1K | — | 2 |
| AS397312US | LAKE-LINX - Lake Linx, Inc. | 1K | — | 3 |
| AS12027US | HYTRON-CA - Hytron Network Services (US) LLC | 1K | — | 3 |
| AS46754US | FORTEX-DATACENTER-NJ - Fortex Technologies, Inc. | 1K | — | 4 |
| AS33538US | MIMECAST-CA - Mimecast North America Inc | 1K | 2 | 4 |
| AS55281US | ECHO-GLOBAL - Echo Global Logistics | 1K | — | 4 |
| AS13450US | TIS-DC1 - Touchnet Information Systems, Inc. | 1K | — | 4 |
| AS1041US | KMB3 - Kimberly-Clark Corporation | 1K | — | 3 |
| AS203955US | VCSVCS VCSVCS Inc. | 1K | — | 4 |
| AS31832US | ASN-MDT - Member Driven Technologies | 1K | — | 1 |
| AS396252US | CYBERANNEX - CYBERANNEX CORPORATION | 1K | — | 1 |
| AS396270US | TCSP-PROD-AS - TrustCommerce | 1K | — | 4 |
| AS33627US | VISTEON - VISTEON CORPORATION | 1K | — | 4 |
| AS33672US | TITAN-LABS-AI-01 - Titan Labs USA, LLC | 1K | — | 1 |