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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 |
| 512 |
| — |
| 1 |
| AS62540US | DRAKE-AS - Drake Holdings LLC | 512 | — | 2 |
| AS402180US | APPLIED-TECHNOLOGY - Applied Technology Group Inc. | 512 | — | 1 |
| AS394055US | GRAND-AVENUE-BROADBAND - CBWE Communications, LLC | 512 | — | 2 |
| AS1077US | ACTIVEPURE-TECH-01 - ActivePure Technologies, LLC | 512 | — | 2 |
| AS402242US | NEVCOFIBER-AS - Nevada County Fiber Inc. | 512 | — | 1 |
| AS11548US | HERITAGE-UNIV-AS - Heritage University | 512 | — | 2 |
| AS399036US | XIGENT-SOLUTIONS - Xigent Solutions, LLC | 512 | — | 2 |
| AS22266US | KNIGHT-INC - KNIGHT TRANSPORTATION | 512 | — | 2 |
| AS18949US | BARTELL-CORP-INTERNET - Bartell Hotels, A California Limited Partnership | 512 | — | 1 |
| AS54230US | COMMERCIALCOMMUNICATIONSINC - Commercial Communications, Inc. | 512 | — | 2 |
| AS55046US | NGS-SDC - National Government Services, Inc. | 512 | — | 2 |
| AS36581US | WJCL-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS23734US | NETROUTINGINC-AS-AP - Netrouting Inc | 512 | — | 2 |
| AS401727US | MEOWNET - Aurora Development LLC | 512 | 768 | 5 |
| AS33690US | AUREON-33690 - Aureon Network Services | 512 | 256 | 3 |
| AS46870US | NJRNET-2009 - New Jersey Resources | 512 | — | 2 |
| AS55284US | USAC-1 - Universal Service Administrative Company | 512 | — | 2 |
| AS401191US | BSOSL-ASN-01 - Blue Star Operations Services LLC | 512 | — | 1 |
| AS53444US | ZSCALER-SJC - ZSCALER, INC. | 512 | — | 2 |
| AS395216US | TELLIGEN - TELLIGEN | 512 | — | 2 |
| AS20003US | MEMBERS1STFCU - Members 1st Federal Credit Union | 512 | — | 2 |
| AS16856US | BLESSING-HEALTH-SYSTEM-AS - Blessing Hospital | 512 | — | 2 |
| AS32192US | EMPRISEBANK - EMPRISE BANK | 512 | — | 1 |
| AS11932US | EDF-MAN-CAPITAL-INC - Breakwater | 512 | — | 2 |
| AS397645US | EPICGA-DC1-AS - Epic Games Inc. | 512 | — | 2 |
| AS18812US | NEWWAVECOMM - New Wave Communications | 512 | — | 2 |
| AS14635US | VERMONT-STUDENT-ASSISTANCE-CORPORATION - Vermont Student Assistance Corporation | 512 | — | 2 |
| AS395737US | UFCU - University Federal Credit Union | 512 | — | 2 |
| AS18646US | BITMAX - Bitmax, Inc. | 512 | 1 | 3 |
| AS398419US | COLO-LOL - Tiny Tiny Computing | 512 | 4.1K | 3 |
| AS55132US | SAJAH - Beverly Hills Hotel | 512 | — | 2 |
| AS400313US | APOG-UNA - Apogee Telecom Inc. | 512 | — | 1 |
| AS54120US | MFF - MARC FISHER LLC | 512 | — | 2 |
| AS399241US | OCEAN-BANK - Ocean Bank | 512 | — | 2 |
| AS394153US | VELOXINET - Veloxinet | 512 | — | 2 |
| AS400393US | DIGITAL-EXAMPLE - Digital Example LLC | 512 | 256 | 3 |
| AS393516US | EDMAMERICASASN - EDM Americas | 512 | — | 2 |
| AS396276US | CAGE-CUBE-518 - Cage Cube Technologies, Inc. | 512 | — | 2 |
| AS32642US | NICMAN - NICMAN GROUP LLC | 512 | — | 2 |
| AS64213US | AS-ERCELITE - ERC Broadband | 512 | 1 | 3 |
| AS36450US | UTSYSADM-AS-1 - University of Texas System Administration | 512 | — | 1 |
| AS14257US | EZ-NET - The Iserv Company, LLC | 512 | — | 2 |
| AS398381US | DC-ASN - Dallas, County Of | 512 | — | 2 |
| AS393977US | GSB - Great Southern Bank | 512 | — | 2 |
| AS23198US | RRTS - Roadrunner Transportation Services, Inc. | 512 | — | 2 |
| AS18899US | AS-JDASOFTSCT - Blue Yonder, Inc | 512 | — | 2 |