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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 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 | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| — |
| — |
| 0 |
| AS399359US | MAX - Maxcy | — | — | 0 |
| AS399390US | GTN-GSASH01-2021 - SES Government Solutions, Inc. | — | — | 0 |
| AS399456US | TEALCOM - Teal Communications, Inc. | — | — | 0 |
| AS399509US | SBA-CONNECT-01 - SBA Edge, LLC | — | — | 0 |
| AS399649US | HCTRA-INFRASTRUCTURE-01 - HARRIS COUNTY TOLL ROAD AUTHORITY | — | — | 0 |
| AS399659US | MCLLC-ASN-01 - Mission Cyber LLC | — | — | 0 |
| AS399679US | SFINC - Stars Flying Inc | — | — | 0 |
| AS399686US | SEMIBAND - SEMIBAND LLC | — | — | 0 |
| AS399715US | THEZEBRA-01 - InsuranceZebra, Inc | — | — | 0 |
| AS399742US | MERAKI-CUSTOMERS - Meraki LLC | — | — | 0 |
| AS399835US | AZ-EXPRESS-ROUTE - Goulston & Storrs | — | — | 0 |
| AS399863US | ACCU16-ASN-01 - Arrowhead Credit Union | — | — | 0 |
| AS399933US | HASHX - HashX | — | — | 0 |
| AS400092US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS400325US | STUBHUB-01 - StubHub, Inc. | — | — | 0 |
| AS400353US | NETINF-CORP-AS - NetInformatik Inc. | — | — | 0 |
| AS400557US | DWS-SANJOSE - Disney Worldwide Services, Inc. | — | — | 0 |
| AS400560US | PATMOSHOSTING - Patmos Hosting, Inc. | — | — | 0 |
| AS400580US | MICROSOFT-AZURE-DEDICATED - Microsoft Corporation | — | — | 0 |
| AS400641US | IPV4HOLDINGS - IPv4 Holdings LLC | — | — | 0 |
| AS400670US | OPENBB - OPEN BROADBAND | — | — | 0 |
| AS400683US | A2DINC-ATL - A2D, Inc | — | — | 0 |
| AS400709US | PROPHETIC-AI - Prophetic AI Corporation | — | — | 0 |
| AS400740US | FAST - Fast | — | — | 0 |
| AS400752US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS400813US | DBA-AS-01 - DBA | — | — | 0 |
| AS400814US | TOWERSEMI-NPB - Tower Semiconductor Newport Beach, Inc. | — | — | 0 |
| AS400984US | CENTRALREACH-ASN-01 - Centralreach | — | — | 0 |
| AS401060US | GIGAION-LLC-AN01 - Gigaion, LLC | — | — | 0 |
| AS401125US | DATASN - DataMaxx Applied Technologies, Inc. | — | — | 0 |
| AS401173US | AEGIS-SCI - Aegis Sciences Corporation | — | — | 0 |
| AS401192US | HUSKY-HOSTING - NCR Holdings | — | — | 0 |
| AS401207US | NA-MAIN - c2h2 Network Solutions | — | — | 0 |
| AS401336US | SOLUNA - Soluna | — | — | 0 |
| AS401563US | FIBERPOWER - FiberPower LLC | — | — | 0 |
| AS401569US | PM-LLC - Patrick McLean LLC | — | — | 0 |
| AS401639US | BS-01 - Birddog Studios LLC | — | — | 0 |
| AS401735US | RESIBRIDGE-INC - Resibridge Inc | — | — | 0 |
| AS401777US | TDAL-7315 - Subsurface Networks LLC | — | — | 0 |
| AS401797US | RABBIT-LABS - Rabbit-Labs | — | — | 0 |
| AS401836US | AMBIT-SOLUTIONS - Ambit Solutions LLC | — | — | 0 |
| AS401841US | CLICKU - Click Do Tech LLC | — | — | 0 |
| AS401870US | AUTOMATE-THE-THINGS-01 - Automate The Things, LLC | — | — | 0 |
| AS401935US | DEEPFIELD - Deepfield | — | — | 0 |
| AS402012US | ASU-NEWPORT-AS - Arkansas State University | — | — | 0 |
| AS402022US | FLH - Ephraim McDowell Health, Inc. | — | — | 0 |