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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 | 24,346 |
| 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 | 4,357 |
| 768 |
| — |
| 3 |
| AS63112US | SERVICENOW-CORP - Service-now.com | 768 | — | 3 |
| AS54192US | MONTEBELLO-USD - Montebello Unified School District | 768 | — | 2 |
| AS40220US | MARIA - Virginia Polytechnic Institute and State Univ. | 768 | 69.8K | 7 |
| AS397941US | TMHCC-PUBLIC-ASN-01 - HCC Service Company INC | 768 | — | 2 |
| AS397994US | XACTLY-01 - Xactly Corporation | 768 | 3 | 6 |
| AS394672US | ALLEGIANTNETWORKS-01 - Allegiant Technology | 768 | — | 3 |
| AS26307US | HORACE-MANN-EDUCATORS-CORPORATION - Horace Mann Service Corporation | 768 | — | 3 |
| AS10944US | ABAG-10944 - Association of Bay Area Governments | 768 | — | 3 |
| AS394597US | HCDL-NEW-JERSEY-DATA-CENTER - H5 Data Centers | 768 | — | 3 |
| AS11230US | MHSFL - Managed Hosting Services, LLC | 768 | — | 3 |
| AS397625US | TPC - Tessy Plastics Corp. | 768 | — | 2 |
| AS46329US | TOURO-ASN - TOURO UNIVERSITY NEVADA | 768 | — | 2 |
| AS402722US | ARCTCLOUD - Arct | 768 | — | 3 |
| AS53865US | PEER-POINT - Peer-Point Services, LLC. | 768 | — | 3 |
| AS395580US | CENTRAL-BLK - Central College | 768 | 258 | 6 |
| AS397283US | ROCKETNODE - SPARKED HOST LLC | 768 | — | 2 |
| AS17024US | BLUEFURMAINAS - BlueFur | 768 | 1K | 3 |
| AS46725US | ESC19-ASN - Education Service Center-Region 19 | 768 | — | 3 |
| AS3525US | ALBERTSONS - UNFI | 768 | — | 3 |
| AS62588US | ASGDC - Active Solutions Group | 768 | — | 3 |
| AS400183US | RELIANCE-STEEL-AND-ALUMINUM-01 - Reliance Steel and Aluminum Co. | 768 | — | 3 |
| AS16848US | NEXG-NOC - NexG | 768 | — | 2 |
| AS214016US | Amarebox-ASN Amarebox LLC | 768 | — | 3 |
| AS22246US | ASN-22246 - Nasdaq, Inc. | 768 | — | 2 |
| AS36364US | MHSNET - Mary Washington Hospital, Inc. | 768 | — | 3 |
| AS33753US | WBMI - West Bend Mutual Insurance Company | 768 | — | 3 |
| AS902US | SPACECOASTCREDITUNIONMAIN - SPACE COAST CREDIT UNION | 768 | — | 3 |
| AS1777US | SAINT-XAVIER-UNIVERSITY-CHICAGO - Saint Xavier University | 768 | — | 3 |
| AS40422US | PACIOLAN - Paciolan, LLC | 768 | — | 3 |
| AS32848US | ETON-INTERNATIONAL-INC - ETON INTERNATIONAL, INC. | 768 | — | 3 |
| AS11394US | CITYOFRICHARDSON-AS - City of Richardson | 768 | — | 3 |
| AS11117US | NUYEK - Nuyek, LLC | 768 | 4.1K | 4 |
| AS62850US | PELSC-DC - OnTrack Systems LLC | 768 | 256 | 4 |
| AS30088US | GC-852-30088 - GTHost | 768 | — | 3 |
| AS15327US | EPS-ECS - EPS US, LLC | 768 | — | 3 |
| AS40062US | ASCENDLEARNING - Ascend Learning, LLC | 768 | — | 2 |
| AS54481US | CHESCO204108252 - County of Chester | 768 | — | 3 |
| AS31913US | CPCHEM - Chevron Phillips Chemical Company LP | 768 | — | 2 |
| AS22785US | GLACIER-BANCORP-INC - GLACIER BANCORP INC | 768 | — | 3 |
| AS395169US | SCRIPTPRO-1 - ScriptPro LLC | 768 | — | 3 |
| AS29981US | ROBINHOOD-MARKETS-1 - ROBINHOOD MARKETS, INC. | 768 | — | 3 |
| AS36665US | NATIONAL-CINEMEDIA - National Cinemedia, LLC | 768 | — | 3 |
| AS18849US | RICHESIN-ENG - Richesin Engineering, LLC | 768 | 65.5K | 3 |
| AS32410US | HMSTEINSGRP - Homesite Group Inc | 768 | — | 3 |
| AS19888US | BAUSCH-ISTA - Bausch Health US, LLC | 768 | — | 3 |
| AS15258US | GBCO - Gilbane Building Company | 768 | — | 3 |