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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 | 3,140 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,178 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,946 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,371 |
| 512 |
| — |
| 2 |
| AS40375US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS40375 - The Bank of New York Mellon Corporation | 512 | — | 2 |
| AS46732US | LEPRINO-FOODS-INC - LEPRINO FOODS DAIRY PRODUCTS COMPANY | 512 | — | 2 |
| AS399222US | NEWCOM-01 - NEWCOM, INC | 512 | — | 2 |
| AS843US | F5-XC-NAE - F5, Inc. | 512 | — | 2 |
| AS25763US | BHSG-ASN001 - Beacon Hill Staffing Group, LLC | 512 | — | 2 |
| AS46369US | TGNA-KUSA-KTVD - TEGNA Inc. | 512 | — | 2 |
| AS53779US | BOMGAR - Bomgar Corporation | 512 | 4 | 6 |
| AS15280US | HOSTLEASING - Host Leasing Corporation | 512 | — | 2 |
| AS54023US | ASIC-ONT - APPLIED SYSTEMS, INC | 512 | — | 2 |
| AS399996US | QFLIX-INTERNET - QFLIX L.L.C. | 512 | — | 2 |
| AS30413US | BENEFITFOCUS - Benefitfocus.com, Inc. | 512 | — | 2 |
| AS395292US | ACRISURE-ARENA - Acrisure Arena | 512 | — | 2 |
| AS1087US | ISD271 - Bloomington Public School District | 512 | — | 1 |
| AS26966US | SPRAY-AS - Spraying Systems Co. | 512 | — | 2 |
| AS22154US | NUTECH - Nu Tech Software Solutions, Inc. | 512 | — | 1 |
| AS36856US | MOZILLA-MDC1 - Mozilla Corporation | 512 | 2 | 2 |
| AS401166US | JABIL-AS-US-PH - Jabil | 512 | — | 1 |
| AS32605US | BRAVESOFT-AS - BraveSoftTech Inc | 512 | — | 2 |
| AS393925US | SAMUEL-A-RAMIREZ-AS - Samuel A. Ramirez & Company, Inc | 512 | — | 2 |
| AS395238US | BRAZOSPORTISD-01 - Brazosport Independent School District | 512 | — | 2 |
| AS29913US | GEICO03 - GEICO | 512 | — | 2 |
| AS395634US | DOUGLAS-COUNTY - Douglas County Government | 512 | — | 2 |
| AS19314US | THERAWLINGSCO-LAGRANGE-KY - The Rawlings Company, LLC | 512 | — | 2 |
| AS46675US | GREENVIEWDATA - Greenview Data | 512 | — | 2 |
| AS25861US | TOGGLE FIRE NETWORKS - Toggle Fire Networks | 512 | 1 | 2 |
| AS397066US | NYU-HSRN-01 - New York University | 512 | — | 2 |
| AS18766US | PHJW-LLP - Paul, Hastings, Janofsky & Walker LLP | 512 | — | 2 |
| AS54425US | WORLDORG - World Organization | 512 | — | 1 |
| AS468US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 512 | — | 1 |
| AS29809US | NOSBGP - Centris Information Services | 512 | — | 2 |
| AS398412US | WEBER-COUNTY-01 - WEBER COUNTY | 512 | — | 1 |
| AS395890US | BROADVIEWFCU - Broadview Federal Credit Union | 512 | — | 2 |
| AS398951US | WBSTRM - WebStream llc | 512 | 4.1K | 3 |
| AS36350US | AS-DEVEREUX - The Devereux Foundation | 512 | — | 2 |
| AS396000US | TEAMINDUSTRIALSERVICES - Team Industrial Services, Inc. | 512 | — | 2 |
| AS30699US | CORECIVIC - CoreCivic, Inc. | 512 | — | 2 |
| AS395560US | THECULVERSTUDIOS - The Culver Studios | 512 | — | 2 |
| AS46330US | LICKINGMEMORIAL-HS - Licking Memorial Hospital | 512 | — | 1 |
| AS400329US | CLEARPATH-FIBER-01 - ClearPath Fiber | 512 | — | 2 |
| AS8188US | BLOOMBERG - Bloomberg Financial Markets Limited Partnership | 512 | — | 2 |
| AS399698US | TRAVELWIFI - TRAVELWIFI LLC | 512 | — | 2 |
| AS40054US | AVATARA-LLC - Avatara LLC | 512 | — | 1 |
| AS18829US | GALAXY-CONTROL-SYSTEMS - Galaxy Control Systems | 512 | — | 2 |
| AS6318US | CHECKFREE - Fiserv Solutions, LLC | 512 | — | 2 |
| AS33486US | ALKERMES - ALKERMES INCORPORATED | 512 | — | 2 |
| AS22842US | ATT-L3 - Butler County Community College | 512 | — | 2 |