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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| 31.2K |
| 11 |
| 118 |
| AS2044US | DF-PTL1 - Digital Fortress | 31.2K | 65.5K | 13 |
| AS11138US | BEK-COMMUNICATIONS-INTERNET-ROUTER - BEK Communications Cooperative | 31.2K | — | 56 |
| AS25773US | RADWARE-CLOUD-SERVICES - RADWARE INC. | 31.2K | 18 | 140 |
| AS33659US | CMCS - Comcast Cable Communications, LLC | 31.2K | 126 | 173 |
| AS17293US | VTXC - VTX Communications LLC | 31.2K | 131.1K | 38 |
| AS395035US | LIVEOAK-FIBER - LiveOak Fiber | 31K | 73.9K | 67 |
| AS393775US | IPP-AS - IP Pathways, LLC | 31K | 8.2K | 50 |
| AS11155US | DELIGHTSPEED-01 - DE LightSpeed | 31K | — | 33 |
| AS11712US | BELLSOUTH - AT&T Services, Inc. | 31K | — | 6 |
| AS32601US | ACUNET-2 - Abilene Christian University | 31K | — | 9 |
| AS46632US | SOUTHWEST-ARKANSAS-TELEPHONE-COOPERATIVE - Southwest Arkansas Telephone Cooperative | 30.7K | — | 28 |
| AS18616US | NATURALWIRELESS - Natural Wireless, LLC | 30.7K | 65.5K | 14 |
| AS13348US | CIGNA-2 - CIGNA | 30.7K | — | 24 |
| AS17071US | UBSW-STAMFORD - UBS AG | 30.7K | — | 85 |
| AS14743US | INTERNAP-BLOCK-4 - Unitas Global | 30.7K | 65.5K | 17 |
| AS23138US | FIRST-STEP - FIRST STEP INTERNET, LLC | 30.5K | 131.1K | 36 |
| AS202623US | CLOUDFLARENET-CORE Cloudflare Inc | 30.5K | 18 | 29 |
| AS6142US | SUN-JAVA - Oracle Corporation | 30.5K | 27.3K | 60 |
| AS15212US | C-SPIRE-WIRELESS - C Spire | 30.5K | — | 23 |
| AS25720US | HONEYCOMB - Honeycomb Internet Services | 30.5K | 69.6K | 12 |
| AS394161US | TESLA - Tesla Motors, Inc. | 30.5K | 13 | 99 |
| AS12008US | VERCARA - Vercara, LLC | 30K | 75 | 182 |
| AS17252US | AS2-COLOAM - Colocation America Corporation | 30K | 65.5K | 14 |
| AS22302US | INOC - INOC, LLC | 30K | 67.8K | 19 |
| AS13984US | SD-DATA-CENTER - SD Data Center | 30K | 205.3K | 35 |
| AS396479US | MAILGUN-US - Mailgun Technologies Inc. | 30K | — | 117 |
| AS214413US | SecureLink WYOCORE TECHNOLOGIES LLC | 29.7K | — | 39 |
| AS19844US | SBA-EDGE-JAX - SBA Edge, LLC | 29.7K | 139.3K | 44 |
| AS3379US | KAISER-NCAL - Kaiser Foundation Health Plan, Inc. | 29.7K | 65.5K | 38 |
| AS11643US | EBAY - eBay, Inc | 29.7K | — | 15 |
| AS399065US | DEFASTLINK - Dixie EPA | 29.7K | 8.2K | 17 |
| AS33152US | KCEC-ASN - Kit Carson Electric Cooperative, Inc | 29.7K | 65.5K | 5 |
| AS17385US | ORBITEL - Orbitel Communications, LLC | 29.4K | — | 55 |
| AS3925US | ICO-SV - ICOnetworks | 29.4K | — | 20 |
| AS22593US | BCBSNC-AS - Blue Cross and Blue Shield of North Carolina | 29.4K | — | 6 |
| AS132892US | CLOUDFLARE - Cloudflare, Inc. | 29.4K | 288 | 53 |
| AS13778US | JOHNSON-AND-JOHNSON - Johnson & Johnson | 29.4K | 1.3M | 28 |
| AS393581US | WAYNENET - Wayne County Regional Educational Service Agency | 29.2K | — | 12 |
| AS399356US | KOSCIUSKO-CONNECT-01 - Kosciusko Connect LLC | 29.2K | — | 25 |
| AS11961US | MIDRIVERS - Mid-Rivers Telephone Cooperative | 29.2K | 65.5K | 8 |
| AS15129US | GENESEO-IL - Geneseo Telephone Company | 29.2K | 65.5K | 15 |
| AS11722US | WFC-ASN - Slic Network Solutions, Inc | 29.2K | 131.1K | 25 |
| AS10557US | CNW - Connect Northwest Internet Services, LLC | 29.2K | — | 81 |
| AS15221US | STRATUSIQ - StratusIQ | 28.9K | 65.5K | 17 |
| AS32400US | HWSERVICES-32400 - Ntirety, Inc. | 28.9K | 65.5K | 7 |
| AS35928US | BECKMAN-COULTER-ASN - BECKMAN COULTER, INC. | 28.9K | — | 89 |