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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,189 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| 3.3K |
| 5 |
| 16 |
| AS395494US | HIGH-RAPID-NETWORKS - High Rapid Networks, LLC. | 3.3K | 65.5K | 5 |
| AS1313US | ADOBE1-AS-AS - Adobe Systems Inc. | 3.3K | 1 | 12 |
| AS33438US | DATUM-CLOUD - Datum | 3.3K | 92 | 30 |
| AS206273US | GLOBALROUTERLLC Global Router LLC | 3.3K | — | 7 |
| AS25611US | NSLIJHS - North Shore Long Island Jewish Health System | 3.3K | — | 10 |
| AS22369US | ONEMIND-01 - Cloudmylab.com | 3.3K | — | 13 |
| AS393422US | NEWVISIONS-CNY - New Visions Communications Inc | 3.3K | — | 13 |
| AS6914US | HCSNET-ASNBLK - Hayes Computer Systems | 3.3K | 4.1K | 4 |
| AS21648US | SNINET-1 - SageNet | 3.3K | — | 13 |
| AS11570US | AS11570 - Eastern New Mexico University | 3.3K | — | 10 |
| AS54696US | FOOTHILLS-BROADBAND - Foothills Broadband, LLC | 3.3K | 4.1K | 12 |
| AS11314US | LIKEWHOA-WEST - Like Whoa, Inc. | 3.3K | — | 3 |
| AS400666US | DOBSON-ASN-02 - Dobson Technologies - Transport and Telecom Solutions, LLC | 3.3K | — | 5 |
| AS394896US | AHL-759-394896 - Ace Host, LLC | 3.3K | 4.4K | 13 |
| AS398427US | MARKLEY-NETWORK-SERVICES - Markley Network Services, LLC | 3.3K | 768 | 12 |
| AS397376US | IFN - IFN | 3.3K | 4.1K | 8 |
| AS2763US | PAN-22-2763 - Palo Alto Networks, Inc | 3.3K | — | 13 |
| AS22619US | COLOGIX-CGY - Cologix Canada, Inc. | 3.3K | 65.5K | 11 |
| AS33507US | NTS-LASCRUCES-01 - Vexus Fiber | 3.3K | — | 3 |
| AS22241US | IC2NET - IC2NET | 3.3K | 4 | 17 |
| AS16715US | ARISTOTLE-ASN - Aristotle Internet Access | 3.3K | 65.5K | 14 |
| AS7914US | CSI - Church of Scientology International | 3.3K | — | 12 |
| AS55095US | AS-NFLXCORP - Netflix Inc | 3.3K | 94 | 32 |
| AS14693US | BAPTIST-HEALTH-AS - Baptist Health | 3.3K | — | 10 |
| AS62744US | QUINTEX - Quintex Alliance Consulting | 3.3K | 4 | 14 |
| AS22464US | NELTC-ISP - Northeast Louisiana Telephone Company, Inc. | 3.3K | 65.5K | 4 |
| AS54330US | DWS-KMTC - Disney Worldwide Services, Inc. | 3.3K | — | 6 |
| AS36782US | AS36782 - Keyway Network Systems | 3.3K | — | 13 |
| AS46846US | DOE-HQ-COOP - U.S. Department of Energy | 3.3K | 3.3K | 35 |
| AS395251US | BHS-MT - Benefis Health System | 3.3K | — | 7 |
| AS40355US | SUNDANCE-NET - Sundance International LLC | 3.3K | — | 10 |
| AS401694US | CLOUD-9-INTERNET - Cloud 9 Wireless LLC | 3.3K | — | 6 |
| AS11699US | UNIVOIP - UniVoIP Inc. | 3.3K | — | 9 |
| AS397880US | SKYWIRE-ASN - Mitec Solutions | 3.3K | 65.5K | 8 |
| AS21646US | FISHER - Fisher Investments Inc. | 3.3K | — | 13 |
| AS3595US | DATABANK-ZCOLO - zColo | 3.3K | 1 | 6 |
| AS393429US | OPTIC-LOOP-COMMUNICATIONS-LLC - Bertram Communications LLC | 3.3K | — | 6 |
| AS62798US | PBB-OPELIKA - Point Broadband Fiber Holding, LLC | 3.3K | — | 4 |
| AS395260US | FARMERSTELCOM - The Farmers Telephone Company Inc. | 3.3K | — | 12 |
| AS19124US | ASCENSION-WHEATON - Ascension Technologies | 3.3K | — | 13 |
| AS19574US | CSC - Corporation Service Company | 3.3K | 1 | 7 |
| AS30212US | HYPERMEDIA-SYSTEMS - Hypermedia Systems, Inc. | 3.3K | — | 7 |
| AS26344US | REALPAGE-INC - Real Page, Inc. | 3.3K | — | 11 |
| AS216030US | goodleaf-hd GoodLeaf Hosting & Development LLC | 3.3K | 3 | 16 |
| AS16409US | PBW-COMMUNICATIONS - PBW Communications, LLC | 3.3K | 65.5K | 4 |
| AS395650US | BEAON-PUB01 - Carelon Behavioral Health, Inc. | 3.3K | — | 6 |