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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 | 24,358 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,342 |
| 512 |
| — |
| 2 |
| AS402375US | KIMLEY-HORN - Kimley-Horn | 512 | — | 2 |
| AS46806US | BNU-1-46806 - BlueCat Networks (USA) Inc. | 512 | — | 2 |
| AS46443US | CFE-AS - Addition Financial Credit Union | 512 | — | 2 |
| AS396834US | BRADY-WW-01 - Brady Worldwide, Inc | 512 | — | 2 |
| AS18784US | MCD-US-ASN - McDonald's Corporation | 512 | — | 2 |
| AS402461US | KYRO-123 - KyroTelecom | 512 | — | 2 |
| AS395036US | CITYOFSANIBEL - City of Sanibel | 512 | — | 2 |
| AS395009US | VECTORWORKS-NET - Vectorworks, Inc. | 512 | — | 2 |
| AS33629US | NKU-AS1 - Northern Kentucky University | 512 | — | 2 |
| AS155US | DNIC-AS-00155 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS54866US | TCS-EDUCATION-SYSTEM - TCS Education System | 512 | — | 2 |
| AS30503US | FPM-ATLANTA - FLORIDA PENINSULA MANAGERS, LLC | 512 | — | 2 |
| AS62681US | ACME-WIDGET - Acme Widget LP | 512 | 1 | 3 |
| AS33498US | TALCOTT-RESOLUTION-INSURANCE - Talcott Resolution Life Insurance Company | 512 | — | 2 |
| AS18763US | PHJW-LLP - Paul, Hastings, Janofsky & Walker LLP | 512 | — | 2 |
| AS40140US | COGNEX-DU - Cognex Corporation | 512 | — | 2 |
| AS401648US | EVERI GAMES - Everi Games Inc. | 512 | — | 2 |
| AS397331US | DRIVE - DRIVE | 512 | — | 1 |
| AS21946US | IVSH-ATL-ASN - iVenture Solutions. LLC | 512 | — | 1 |
| AS32810US | ITCE-888-01 - IT Colo Exchange | 512 | — | 2 |
| AS29809US | NOSBGP - Centris Information Services | 512 | — | 2 |
| AS399046US | DRPA-ASN-01 - The Delaware River Port Authority | 512 | — | 2 |
| AS18772US | SKY-LAKES-MEDICAL-CENTER - Sky Lakes Medical Center, Inc. | 512 | — | 1 |
| AS13565US | ORVIS - THE ORVIS COMPANY, INC. | 512 | — | 2 |
| AS26796US | MEUS-DC1 - Mitsubishi Electric US, Inc. | 512 | — | 2 |
| AS54666US | INTERNET-MULTIHOMING-AS - Fugro (USA), INC. | 512 | — | 2 |
| AS32792US | TC-GTN - TransCanada Pipelines Limited | 512 | — | 1 |
| AS53779US | BOMGAR - Bomgar Corporation | 512 | 5 | 7 |
| AS33060US | THEPCU-AS-THE-POLICE-CREDIT-UNION - SFPCU | 512 | — | 2 |
| AS53562US | DRIVETIME - DriveTime | 512 | — | 2 |
| AS30232US | M3C-AS30232 - M3 Consulting LLC | 512 | 4.1K | 2 |
| AS35963US | GREENVILLE-SPARTANBURG-AIRPORT-COMMISSION - Greenville-Spartanburg Airport Commission | 512 | — | 2 |
| AS395634US | DOUGLAS-COUNTY - Douglas County Government | 512 | — | 2 |
| AS393925US | SAMUEL-A-RAMIREZ-AS - Samuel A. Ramirez & Company, Inc | 512 | — | 2 |
| AS395369US | HPSAS001 - HPS Investment Partners, LLC | 512 | — | 2 |
| AS36460US | WATTSCORPORATEASN - Watts Water Technologies, Inc. | 512 | — | 2 |
| AS399445US | TVCC-NET1 - TVCC | 512 | — | 2 |
| AS400347US | APOG-BJU - Apogee Telecom Inc. | 512 | — | 1 |
| AS400079US | ANGELTRAX - IVS, Inc. | 512 | — | 2 |
| AS398555US | CONCOR-2-398555 - Concordia University Nebraska | 512 | — | 2 |
| AS400996US | UNIVERSAL-BROADBAND - AeroSurf | 512 | 65.5K | 3 |
| AS399094US | MTE - MIDDLE TENNESSEE ELECTRIC MEMBERSHIP CORPORATION (THE) | 512 | — | 2 |
| AS402970US | RAVNIX-CUSTOMERS - RAVNIX | 512 | — | 2 |
| AS401645US | DATAIMPULSE-AS - Softoria LLC | 512 | — | 2 |
| AS397066US | NYU-HSRN-01 - New York University | 512 | — | 2 |
| AS54431US | LUNAVI-DEN - Lunavi, Inc. | 512 | — | 1 |