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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 | 24,540 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,305 |
| 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.
32,187 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,362 |
| 256 |
| — |
| 1 |
| AS16390US | WIFI-BEAR-ASN - WiFi Bear LLC | 256 | — | 1 |
| AS54678US | GRMIMS - GRM Information Management Services, LLC | 256 | — | 1 |
| AS54089US | OPTECH - Operational Technologies Corporation | 256 | — | 1 |
| AS32691US | CSC - Corporation Service Company | 256 | — | 1 |
| AS401455US | CLEARLINE-COMMUNICATIONS-INC - Clearline Communications, Inc. | 256 | 4.1K | 2 |
| AS32599US | DOTERRA-NET - doTERRA International, LLC | 256 | — | 1 |
| AS25965US | BRAMCO - BRAMCO, LLC | 256 | — | 1 |
| AS197US | RAYTHEON-AS-2 - Raytheon Company | 256 | — | 1 |
| AS401264US | UACCM-AS - University of Arkansas Community College at Morrilton | 256 | 256 | 2 |
| AS401854US | VELOCIRAPTOR-01 - Velociraptor LLC | 256 | 1 | 2 |
| AS32572US | AVENIR - Avenir Solutions Inc. | 256 | — | 1 |
| AS26364US | RDV-CORP - RDV Corporation | 256 | — | 1 |
| AS19344US | BESOV - Sovereign-Sol LLC | 256 | — | 1 |
| AS397522US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 256 | 1 | 2 |
| AS393928US | HILLIARD-CITY-SCHOOLS-AS - Hilliard City School District | 256 | — | 1 |
| AS62851US | ESOLUTIONS - eDot, LLC | 256 | — | 1 |
| AS46982US | IGC-TYN - Intelsat General Corporation | 256 | — | 1 |
| AS32917US | RANDALLCOUNTY-01 - Randall County Texas | 256 | — | 1 |
| AS40566US | HEC-HOU - Hilcorp Energy Company | 256 | — | 1 |
| AS402360US | BRFLASHV - BRF | 256 | — | 1 |
| AS397656US | CHI01-US-CENTRIEN-COM - Centrien | 256 | — | 1 |
| AS400323US | NEXTITLE - NexTitle | 256 | — | 1 |
| AS39482US | sfm-hk Supply Frame, Inc. | 256 | — | 1 |
| AS396295US | CALIBER-SOUTH - Caliber South, LLC | 256 | 65.5K | 2 |
| AS25727US | RBNA-HQ - RED BULL NORTH AMERICA, INC. | 256 | — | 1 |
| AS54991US | CADENCE-BANK-BHM - Cadence Bank, N.A. | 256 | — | 1 |
| AS843US | F5-XC-NAE - F5, Inc. | 256 | — | 1 |
| AS401562US | OOXXLINK - OOXX Link Inc | 256 | — | 1 |
| AS26573US | NY-DC - Luxoft USA Inc | 256 | — | 1 |
| AS54428US | FRD-ASN - Leonardo DRS, Inc. | 256 | — | 1 |
| AS11085US | NCS-TECHNOLOGIES - NCS Technologies Inc | 256 | — | 1 |
| AS36743US | AUSRA-SYSTEMS - Ausra LLC | 256 | 18 | 4 |
| AS394309US | HOUSTON-BAPTIST-UNIVERSITY - HBU.edu | 256 | — | 1 |
| AS16834US | WEBSTER-BANK - Webster Bank, National Association | 256 | — | 1 |
| AS61228US | BGP-NETWORKS-LLC BGP NETWORKS LLC | 256 | 26 | 12 |
| AS47101US | CITYOFYAKIMA - City of Yakima | 256 | 256 | 2 |
| AS394961US | SAINT-ANSELM-COLLEGE - Saint Anselm College | 256 | — | 1 |
| AS14479US | OG-ASN-01 - The Oneida Group Inc. | 256 | — | 1 |
| AS399713US | KIRKLAND-ELLIS-DE - Kirkland & Ellis LLP | 256 | — | 1 |
| AS54940US | BFS-49-54940 - Broadridge Financial Solutions, Inc. | 256 | — | 1 |
| AS971US | PUREVOLTAGE - PureVoltage Hosting Inc. | 256 | 4.1K | 2 |
| AS36442US | MERCURY HEALTHCARE - WebMD, LLC | 256 | — | 1 |
| AS670US | DNIC-AS-00670 - Headquarters, USAISC | 256 | — | 1 |
| AS401285US | MICHIGANVIRTUAL - MICHIGAN VIRTUAL | 256 | — | 1 |
| AS15155US | SOUTHERN-FARM-BUREAU-LIFE-INSURANCE - Southern Farm Bureau Life Insurance Company | 256 | — | 1 |
| AS54360US | USJ-ASN - USJ | 256 | — | 1 |