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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| GCL-01 - Good Connections, LLC |
| 1.3K |
| 15 |
| 20 |
| AS6401US | ZAYO-CAN-6401 - Zayo Bandwidth | 1.3K | — | 5 |
| AS400397US | HERKIMER-COUNTY-COMMUNITY-COLLEGE - Herkimer County Community College | 1.3K | — | 5 |
| AS398989US | DEEPINTENT - DeepIntent, Inc. | 1.3K | 2 | 7 |
| AS16744US | WUCHICAGO - THE WESTERN UNION COMPANY | 1.3K | — | 3 |
| AS53263US | GRCC-AS1 - Grand Rapids Community College | 1.3K | — | 2 |
| AS13837US | POINT5-MS - Point5 Managed Services, LLC | 1.3K | 65.5K | 5 |
| AS63138US | SAC-COLO1 - Blue Shield of California | 1.3K | — | 5 |
| AS30284US | CITIGROUP-BANAMEX - Citigroup Inc. | 1.3K | — | 5 |
| AS10949US | SMART-CITY-HICC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.3K | — | 2 |
| AS17178US | MOTIONINDUSTRIES - Motion Industries, Inc. | 1.3K | — | 5 |
| AS398065US | FRITZ-LABS - Fritz Lab LLC | 1.3K | 16 | 5 |
| AS401382US | ZENIX-CLOUD-AS1 - Zenix Solutions, LLC | 1.3K | 256 | 3 |
| AS20066US | MSC-SJ-HQ - Supermicro Computer | 1.3K | — | 5 |
| AS397071US | AWEB-LLC-ASN - AWEB LLC | 1.3K | 1 | 6 |
| AS46614US | SENCI-46614 - Sencinet LatAm (Nevada) Corp. | 1.3K | — | 5 |
| AS36593US | ASPEN-SMART-NETWORKS - Aspen Wireless Technologies Inc | 1.3K | — | 3 |
| AS19747US | DATAVAIL-ASN - Datavail | 1.3K | 18 | 7 |
| AS397654US | 46LABS-IAD1 - 46 Labs LLC | 1.3K | — | 4 |
| AS13703US | SDL-158-13703 - SYnthetic Development LLC | 1.3K | — | 5 |
| AS19208US | INFINITE-CAMPUS-NV - Infinite Campus, Incorporated | 1.3K | — | 2 |
| AS62659US | Q2HOLDINGS - Q2 Software, Inc. | 1.3K | — | 5 |
| AS21763US | ROSSSTORES - Ross Stores Inc. | 1.3K | — | 5 |
| AS11140US | BEHRPROCESS - Behr Process | 1.3K | — | 2 |
| AS27527US | HTFCU-AS - Heritage Trust Federal Credit Union | 1.3K | — | 2 |
| AS6492US | PCCD - Palomar Community College District | 1.3K | 1 | 6 |
| AS46376US | CITYOFORLANDO-BLOCK - City of Orlando - Information Systems | 1.3K | — | 4 |
| AS1074US | PRODUCTION-NETWORKS - Production Networks, LLC | 1.3K | — | 2 |
| AS400783US | DFC-ASN-01 - Dole Food Company, Inc. | 1.3K | — | 5 |
| AS18693US | UCH-CENTRAL - University of Colorado Hospital | 1.3K | — | 4 |
| AS62474US | EWEB - Eugene Water and Electric Board | 1.3K | — | 2 |
| AS29727US | ARCKANET - ARCKANET | 1.3K | 512 | 7 |
| AS216174US | ASN-SNL Spearware Networks LLC | 1.3K | 273 | 8 |
| AS47689US | Pudu Pudu, LLC | 1.3K | 65.8K | 13 |
| AS206533US | CentrixNodes CentrixNodes LLC | 1.3K | 1 | 6 |
| AS27223US | LOATHING - Bare Metal Hosting | 1.3K | — | 2 |
| AS63061US | CARLSONWAGONLITTRAVEL - CWT US, LLC | 1.3K | 1 | 4 |
| AS30046US | EIC - Erie Indemnity Company | 1.3K | — | 5 |
| AS16925US | COSMB-MAIN-NET-00 - Cloud Optimized SMB LLC | 1.3K | 4.7K | 10 |
| AS1842US | USGS-AS - Department of Interior United States Geological Survey | 1.3K | 1 | 6 |
| AS31865US | SWKAS - THE STANLEY WORKS | 1.3K | — | 2 |
| AS11476US | PCT-01 - PRIME CARE TECHNOLOGIES, INC. | 1.3K | — | 2 |
| AS397374US | AS-LOANSCIENCE - Loan Science | 1.3K | — | 4 |
| AS27613US | TYLERTECH-CCS1 - Tyler Technologies, Inc. | 1.3K | 5 | 10 |
| AS46537US | ELMDC - Elm Datacenter LLC | 1.3K | — | 5 |
| AS62668US | OCG-INTERNET-SERVICES - Optical Communications Group, Inc. | 1.3K | — | 2 |
| AS394516US | COUNTYOFNAPAAS - County of Napa MIS | 1.3K | — | 2 |