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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 | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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 | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| APTAERONET - Aptaero, Inc. |
| 256 |
| — |
| 1 |
| AS26980US | CHURCH-DWIGHT - Church & Dwight Co., Inc. | 256 | — | 1 |
| AS10545US | LCOL - University of Lynchburg | 256 | — | 1 |
| AS21924US | KERN-HIGH-SCHOOL-DISTRICT - Kern High School District | 256 | — | 1 |
| AS393493US | LOTTEBIOLOGICS - Lotte Biologics USA, LLC | 256 | — | 1 |
| AS21796US | WIT-ASN-01 - WITHAM HOSPITAL | 256 | — | 1 |
| AS13439US | SCIREMC-CORP - SCI REMC | 256 | — | 1 |
| AS15312US | PWGL - Prime Wholesale Goods LLC | 256 | — | 1 |
| AS399370US | KIRKLAND-ELLIS-SF - Kirkland & Ellis LLP | 256 | — | 1 |
| AS40836US | VECTORSEC - VECTOR SECURITY INC | 256 | — | 1 |
| AS13475US | WFCU-WW-ASN - UNIFY Financial Credit Union | 256 | — | 1 |
| AS397030US | HILTON-H - Hilton Worldwide Holdings Inc | 256 | — | 1 |
| AS31964US | CG-AS - The Imagine Group, LLC | 256 | — | 1 |
| AS22776US | CONRES01730 - Continental Resources | 256 | — | 1 |
| AS40303US | AKSIA - AKSIA LLC | 256 | — | 1 |
| AS17101US | POLA-AS - PORT OF LOS ANGELES | 256 | — | 1 |
| AS26515US | CFM-CFMPD - City of Fort Myers | 256 | — | 1 |
| AS16419US | COF-EQX-CHI-PP - Capital One Financial Corporation | 256 | — | 1 |
| AS32565US | AFSCME-ASN - AFSCME | 256 | — | 1 |
| AS1700US | RICE-AS1700 - Rice University | 256 | — | 1 |
| AS13951US | DATABANK-SLC - C7 Data Centers, Inc. | 256 | 1 | 2 |
| AS46782US | GTS-169-ASN-01 - Gabriels Technology Solutions, Inc. | 256 | — | 1 |
| AS395967US | WIDEPENNET - WON Communications, LLC | 256 | 16.4K | 2 |
| AS26786US | BETANXT-1 - BetaNXT, Inc. | 256 | — | 1 |
| AS396848US | DEC-139 - Delaware Electric Cooperative, Inc. | 256 | — | 1 |
| AS398926US | SCCC-01 - St. Charles Community College | 256 | — | 1 |
| AS27132US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 256 | — | 1 |
| AS14538US | HEC-NETWORK - Harrisonburg Electric Commission | 256 | — | 1 |
| AS36174US | BAPTISTHEALTH - Baptist Health System | 256 | — | 1 |
| AS398155US | WBR-LA-01 - West Baton Rouge Parish Council | 256 | — | 1 |
| AS25732US | TOTALCARDINC - Total Card, Inc. | 256 | — | 1 |
| AS63011US | RCG-ASN - RIMKUS CONSULTING GROUP, INC | 256 | — | 1 |
| AS396384US | BBNB1796 - Baker Boyer Bancorp | 256 | — | 1 |
| AS397640US | AS-CORESCI - Core Scientific, Inc. | 256 | — | 1 |
| AS46213US | LS-POWER-ASN-02 - LS Power Development, LLC | 256 | — | 1 |
| AS23062US | JWPEPPER - J.W. Pepper & Son, Inc. | 256 | — | 1 |
| AS53445US | TVHEALTH - The Villages Health | 256 | — | 1 |
| AS46439US | CITYOFLEXINGTON - CITY OF LEXINGTON | 256 | — | 1 |
| AS393999US | ALPINEWEB - AlpineWEB | 256 | — | 1 |
| AS398462US | VPHARM-UK - Vertex Pharmaceuticals | 256 | — | 1 |
| AS400102US | LYONC - Apogee Telecom Inc. | 256 | — | 1 |
| AS21749US | ALBERICI-GROUP - Alberici Group, Inc. | 256 | — | 1 |
| AS32285US | HFCC - Henry Ford College | 256 | — | 1 |
| AS53549US | HUSSEY-SEATING - Hussey Seating Company | 256 | — | 1 |
| AS18685US | PLANNET-OC-01 - PlanNet LLC | 256 | 1 | 2 |
| AS402725US | 1N7ER-NET - 1n7er.net, | 256 | 4.1K | 2 |
| AS399879US | CENTERCLICK-ASN - CenterClick LLC | 256 | 17 | 3 |