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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. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| — |
| 1 |
| AS25944US | OCP-AS-01 - Society of Young Enterprise Engineers Ltd. | 256 | 16 | 2 |
| AS25744US | LOGIC-SPRINGS-TECHNOLOGIES - Logic Springs Technologies | 256 | — | 1 |
| AS393409US | HELLOSPOKE - Voitress | 256 | — | 1 |
| AS11120US | ISYS-LLC - WidePoint Integrated Solutions Corp. | 256 | — | 1 |
| AS396446US | KESTRAFINANCIAL - KESTRA FINANCIAL, INC | 256 | — | 1 |
| AS401832US | RULE YOUR OWN GAME INC - Rule Your Own Game Inc. | 256 | 2 | 3 |
| AS401186US | OPTYXBROADBAND-FL - Optyx Broadband Inc. | 256 | — | 1 |
| AS22862US | CLINTON-CITY-SCHOOLS - Clinton City Schools | 256 | — | 1 |
| AS32324US | CITYCERRITOS - CITY OF CERRITOS | 256 | — | 1 |
| AS22880US | PRIMED-HPMG - PRIMED MANAGEMENT CONSULTING INC | 256 | — | 1 |
| AS397542US | ACCDPEC - Austin Convention Center Department | 256 | — | 1 |
| AS33196US | LJA-ENG-01 - LJA Engineering, Inc. | 256 | — | 1 |
| AS400358US | TOTALDATALOSS - TOTALDATALOSS LLC | 256 | 256 | 2 |
| AS26643US | ACE-002 - Ace Data Centers II, L.L.C. | 256 | — | 1 |
| AS199594US | PMIX-AS Poema eXchange LLC | 256 | 256 | 2 |
| AS40744US | MC-CDC-01 - Coors Distributing Company | 256 | — | 1 |
| AS402597US | DBH-CORP - Blick | 256 | — | 1 |
| AS397393US | REHNAS01 - A W Rehn & Associates Inc. | 256 | — | 1 |
| AS399751US | CNTYRCKHM - County of Rockingham | 256 | — | 1 |
| AS26956US | OSG-SHIP-MANAGMENT-INC - OSG Ship Management, Inc | 256 | — | 1 |
| AS401317US | BPLD - Boulder Public Library District | 256 | — | 1 |
| AS395967US | WIDEPENNET - WON Communications, LLC | 256 | 16.4K | 2 |
| AS36397US | PALMETTO-CITIZENS-FCU - Palmetto Citizens Federal Credit Union | 256 | — | 1 |
| AS399617US | DALLAS-COUNTY-DATA - Satellite Center, LLC | 256 | — | 1 |
| AS400900US | SKHMSA-WEB - SK Hynix Memory Solutions America Inc. | 256 | — | 1 |
| AS400376US | BCCC - Bay County Clerk of Court & Comptroller | 256 | — | 1 |
| AS7413US | IPCLEAR - IPClear | 256 | 16 | 2 |
| AS54383US | NORWOOD-BANK - Norwood Cooperative Bank | 256 | — | 1 |
| AS32812US | ASN-SUNWESTFCU - Sunwest Federal Credit Union | 256 | — | 1 |
| AS400540US | WIRELESS-BLUE-INC - Wireless Blue Inc. | 256 | 256 | 2 |
| AS393314US | ORACLE-BYOASN - Oracle Corporation | 256 | — | 1 |
| AS54892US | AS-CBPP - Center on Budget and Policy Priorities | 256 | — | 1 |
| AS53531US | SENECA-ASN - Seneca Sawmill Company | 256 | — | 1 |
| AS18944US | HEAP - AS18944 LLC | 256 | 1 | 2 |
| AS26578US | NATIONWIDEASN2 - Nationwide Mutual Insurance Company | 256 | — | 1 |
| AS402657US | QUESTMARK - QuestMark | 256 | — | 1 |
| AS40369US | BCI-MIA-1 - BANCO DE CREDITO E INVERSIONES, SA | 256 | — | 1 |
| AS27379US | SELECT-STAFFING - Select Staffing | 256 | — | 1 |
| AS23032US | FCS-INDUSTRIES-01 - FCS Industries | 256 | — | 1 |
| AS400028US | ASBURY-UNIVERSITY-AS01 - Asbury University | 256 | — | 1 |
| AS205781US | HostZen HostZen LLC | 256 | — | 1 |
| AS23508US | CGH-MAIN-CAMPUS - Chesapeake General Hospital | 256 | — | 1 |
| AS40494US | VW-01 - VITALITY WORKS, INC. | 256 | — | 1 |
| AS46213US | LS-POWER-ASN-02 - LS Power Development, LLC | 256 | — | 1 |
| AS17298US | ROEHL-AS - ROEHL TRANSPORT, INC. | 256 | — | 1 |
| AS32604US | UWALKIN - uwalkin IT Solutions | 256 | — | 1 |