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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) | 227.7M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 768 |
| — |
| 3 |
| AS19888US | BAUSCH-ISTA - Bausch Health US, LLC | 768 | — | 3 |
| AS46889US | CLEARENT - Clearent LLC | 768 | — | 3 |
| AS397804US | LDTUS-01 - Lighthouse Document Technologies, Inc | 768 | — | 3 |
| AS398301US | ARH-ORG - Appalachian Regional Healthcare, Inc. | 768 | — | 3 |
| AS26911US | LITFIBER - LitFiber LLC | 768 | — | 2 |
| AS11117US | NUYEK - Nuyek, LLC | 768 | 4.1K | 4 |
| AS215740US | NETULU-EU Netulu Incorporated | 768 | 524.3K | 4 |
| AS13457US | 13457-WOLVERINE-POWER-SUPPLY - Wolverine Power Supply | 768 | — | 3 |
| AS402916US | NIENBO - Nienbo | 768 | 18 | 5 |
| AS26411US | PRERENDER-NET - Saas.group LLC | 768 | — | 3 |
| AS15327US | EPS-ECS - EPS US, LLC | 768 | — | 3 |
| AS16714US | TENNANT-COMPANY - Tennant | 768 | — | 2 |
| AS402118US | AMERICOLD-US - Americold Logistics, LLC | 768 | — | 2 |
| AS18911US | MARKETFACTORY - Market Factory, Inc. | 768 | — | 3 |
| AS54174US | BCBST - BlueCross BlueShield of Tennessee | 768 | — | 3 |
| AS53722US | SSSASN - Social & Scientific Systems, Inc. | 768 | 3 | 6 |
| AS26325US | TECHCU-AS - Technology Credit Union | 768 | — | 3 |
| AS1777US | SAINT-XAVIER-UNIVERSITY-CHICAGO - Saint Xavier University | 768 | — | 3 |
| AS12245US | PRMC-ASN - Peninsula Regional Medical Center | 768 | — | 3 |
| AS33283US | MCSERVICES - MC Services | 768 | — | 2 |
| AS17024US | BLUEFURMAINAS - BlueFur | 768 | 1K | 3 |
| AS22841US | NCCNORTHAMPTON - Northampton Community College | 768 | — | 3 |
| AS11721US | STYLENTECH - StylenTech LLC | 768 | 4 | 7 |
| AS400885US | OPTNET - Optimus Communications | 768 | — | 3 |
| AS54573US | GTECH-PRODUCTION - Brightstar Global Solutions Corporation | 768 | — | 3 |
| AS7988US | CENTURYLINK-SPA-SINGAPORE - CenturyLink Communications, LLC | 768 | — | 2 |
| AS40220US | MARIA - Virginia Polytechnic Institute and State Univ. | 768 | 69.8K | 7 |
| AS6591US | INGR-ASN - Intergraph Corporation | 768 | — | 3 |
| AS60281US | WEBAIR-INTERNET-UK WEBAIR INTERNET DEVELOPMENT COMPANY LLC | 768 | — | 3 |
| AS62588US | ASGDC - Active Solutions Group | 768 | — | 3 |
| AS22907US | AS22907 - Conduent Business Services, LLC | 768 | — | 3 |
| AS46106US | JACKSON-HEALTHCARE - Jackson Healthcare, LLC | 768 | — | 3 |
| AS53388US | TEFEXIA - Tefexia LC | 768 | 65.5K | 5 |
| AS401290US | LSUAA - Louisiana State University at Alexandria | 768 | — | 3 |
| AS16848US | NEXG-NOC - NexG | 768 | — | 2 |
| AS11066US | XPO LOGISTICS - XPO LOGISTICS INC | 768 | — | 3 |
| AS33024US | HWS - Harvard-Westlake School | 768 | 19 | 7 |
| AS12227US | WBNS-AS-1 - WBNS TV, Inc. | 768 | — | 3 |
| AS393600US | RELIANCE-01 - Reliance Standard Life Insurance Company | 768 | — | 3 |
| AS18670US | ARROWSTREET - Arrowstreet Capital, L.P. | 768 | — | 2 |
| AS399078US | 9STONE-LLC - 9STONE LLC | 768 | 1 | 3 |
| AS400829US | HCDL-SAN-ANTONIO-DATA-CENTER - H5 Data Centers | 768 | 4.1K | 4 |
| AS40413US | ASN-HCMC - Hennepin County Medical Center | 768 | — | 3 |
| AS53713US | NATIONAL-CEMENT - National Cement Company | 768 | — | 3 |
| AS31776US | BUSINESS-WIRE-NY - Business Wire | 768 | — | 2 |
| AS401707US | ARPHOST - ARPHost, LLC | 768 | 3 | 6 |