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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 | 23,999 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| 3.6K |
| 1 |
| 12 |
| AS26081US | SANTEECOOPER - Santee Cooper | 3.6K | — | 14 |
| AS44382US | WhiteLabel Fiba Cloud Operation Company, LLC | 3.6K | 11 | 25 |
| AS32425US | SKB3-ARIN-BGP - Pixel Factory | 3.6K | 20.5K | 13 |
| AS14201US | TELETECH - TeleTech Holdings, Inc | 3.6K | — | 8 |
| AS206273US | GLOBALROUTERLLC Global Router LLC | 3.3K | — | 7 |
| AS398427US | MARKLEY-NETWORK-SERVICES - Markley Network Services, LLC | 3.3K | 768 | 12 |
| AS395494US | HIGH-RAPID-NETWORKS - High Rapid Networks, LLC. | 3.3K | 65.5K | 5 |
| AS6363US | EXTREME-NETWORKS - Extreme Networks, Inc. | 3.3K | 522 | 15 |
| AS33507US | NTS-LASCRUCES-01 - Vexus Fiber | 3.3K | — | 3 |
| AS54330US | DWS-KMTC - Disney Worldwide Services, Inc. | 3.3K | — | 6 |
| AS393422US | NEWVISIONS-CNY - New Visions Communications Inc | 3.3K | — | 13 |
| AS11314US | LIKEWHOA-WEST - Like Whoa, Inc. | 3.3K | — | 3 |
| AS6914US | HCSNET-ASNBLK - Hayes Computer Systems | 3.3K | 4.1K | 4 |
| AS22241US | IC2NET - IC2NET | 3.3K | 4 | 17 |
| AS13723US | AS13723 - SANDISK TECHNOLOGIES, INC. | 3.3K | — | 5 |
| AS2763US | PAN-22-2763 - Palo Alto Networks, Inc | 3.3K | — | 13 |
| AS394896US | AHL-759-394896 - Ace Host, LLC | 3.3K | 4.4K | 13 |
| AS402976US | BLUE-CLOUD - Robeing | 3.3K | — | 13 |
| AS161US | TI-AS - Texas Instruments Incorporated | 3.3K | — | 13 |
| AS11570US | AS11570 - Eastern New Mexico University | 3.3K | — | 10 |
| AS16715US | ARISTOTLE-ASN - Aristotle Internet Access | 3.3K | 65.5K | 14 |
| AS22464US | NELTC-ISP - Northeast Louisiana Telephone Company, Inc. | 3.3K | 65.5K | 4 |
| AS62744US | QUINTEX - Quintex Alliance Consulting | 3.3K | 4 | 14 |
| AS7914US | CSI - Church of Scientology International | 3.3K | — | 12 |
| AS36782US | AS36782 - Keyway Network Systems | 3.3K | — | 13 |
| AS397376US | IFN - IFN | 3.3K | 4.1K | 8 |
| AS1313US | ADOBE1-AS-AS - Adobe Systems Inc. | 3.3K | 1 | 12 |
| AS22619US | COLOGIX-CGY - Cologix Canada, Inc. | 3.3K | 65.5K | 11 |
| AS21648US | SNINET-1 - SageNet | 3.3K | — | 13 |
| AS400666US | DOBSON-ASN-02 - Dobson Technologies - Transport and Telecom Solutions, LLC | 3.3K | — | 5 |
| AS394384US | EDGE-BROADBAND - Edge Broadband | 3.3K | 69.6K | 8 |
| AS25611US | NSLIJHS - North Shore Long Island Jewish Health System | 3.3K | — | 10 |
| AS8143US | NEBUSRT - Neburst LLC | 3.3K | 5 | 16 |
| AS62482US | AS-LRCOMM - L.R. Communications, Inc. | 3.3K | — | 13 |
| AS6989US | GTSI - Government Technology Services Inc. | 3.3K | — | 13 |
| AS401890US | HYPFLX-AS01 - Hyperflex Broadband LLC | 3.3K | 65.5K | 4 |
| AS3595US | DATABANK-ZCOLO - zColo | 3.3K | 1 | 6 |
| AS396924US | SKYLANDS-NETWORKS - Skylands Networks | 3.3K | 65.5K | 8 |
| AS137933US | HOMERHOST-AS-AP - CyberForest LLC. | 3.3K | 1 | 12 |
| AS11699US | UNIVOIP - UniVoIP Inc. | 3.3K | — | 9 |
| AS19574US | CSC - Corporation Service Company | 3.3K | 1 | 7 |
| AS398940US | USA-NETWORKING - University of South Alabama | 3.3K | 65.5K | 13 |
| AS396921US | US-CBP - U.S. Customs and Border Protection | 3.3K | 17 | 15 |
| AS30212US | HYPERMEDIA-SYSTEMS - Hypermedia Systems, Inc. | 3.3K | — | 7 |
| AS401694US | CLOUD-9-INTERNET - Cloud 9 Wireless LLC | 3.3K | — | 6 |
| AS26121US | JEPPESEN - Jeppesen ForeFlight Inc. | 3.3K | — | 10 |