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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 |
| 768 |
| — |
| 3 |
| AS400608US | PETDW-MERGECO-01 - Bhp Billiton Petroleum (deepwater) Inc. | 768 | — | 3 |
| AS53554US | NCUA-GOV---NATIONAL-CREDIT-UNION-ADMINISTRATION - National Credit Union Administration | 768 | — | 3 |
| AS18550US | FARCAP-AS - Farallon Capital Management LLC | 768 | — | 3 |
| AS33288US | DASH FT - Dash Financial Technologies LLC | 768 | — | 3 |
| AS4188US | GILBARCO-AS - Gilbarco, Inc. | 768 | — | 3 |
| AS36119US | OSISOFTLLC - OSIsoft, LLC | 768 | — | 2 |
| AS46760US | DRURYHOTELS - Drury Inns | 768 | — | 3 |
| AS395558US | GSCOMPUTING - Garden State Computing LLC | 768 | 65.5K | 4 |
| AS395972US | SCHREIBERFOODS - Schreiber Foods, Inc. | 768 | — | 3 |
| AS54772US | KLEIN-ISD - Klein Independent School District | 768 | — | 3 |
| AS394448US | DXFEED - Devexperts Inc | 768 | — | 3 |
| AS197640US | NETPROTECT Overplay, Inc | 768 | — | 3 |
| AS773US | PARSONS-PGS-2 - Parsons Corporation | 768 | — | 3 |
| AS21537US | ENC-01 - Midland Credit Management, Inc. | 768 | — | 3 |
| AS398542US | ONECHRONOS - OneChronos | 768 | — | 3 |
| AS29716US | ASNOTS - Otsuka America Pharmaceutical, Inc. | 768 | — | 3 |
| AS18929US | AAMVA - THE AMERICAN ASSOCIATION OF MOTOR VEHICLE ADMINISTRATORS | 768 | — | 3 |
| AS16830US | EIS-EQUINIX-AS - EIS Group, INC | 768 | — | 3 |
| AS40211US | STEINERSTUDIOS - Steiner Studios | 768 | — | 2 |
| AS55088US | RWA-ASN - RWA Wealth Partners, LLC | 768 | — | 3 |
| AS397676US | VW-QFN-ASN - Qualfon Data Services Group, LLC | 768 | — | 3 |
| AS32053US | SULLCROM - SULLCROM | 768 | — | 3 |
| AS36406US | US-FIRE-INSURANCE-COMPANY - United States Fire Insurance Company | 768 | — | 3 |
| AS394419US | AKI-CHIN - Ak-Chin Indian Community | 768 | — | 3 |
| AS400626US | ACSC1006 - Automobile Club of Southern California | 768 | — | 3 |
| AS18849US | RICHESIN-ENG - Richesin Engineering, LLC | 768 | 65.5K | 3 |
| AS137220US | TII-AS-SG - Texas Instruments, Inc | 768 | — | 3 |
| AS31913US | CPCHEM - Chevron Phillips Chemical Company LP | 768 | — | 2 |
| AS46329US | TOURO-ASN - TOURO UNIVERSITY NEVADA | 768 | — | 2 |
| AS22246US | ASN-22246 - Nasdaq, Inc. | 768 | — | 2 |
| AS17301US | FASTENAL - Fastenal Company | 768 | — | 2 |
| AS23514US | QUANTLAB - QUANTLAB FINANCIAL LLC | 768 | — | 3 |
| AS40175US | HEALTHSOUTH - Encompass Health Corporation | 768 | — | 3 |
| AS393368US | NYAKI - Nyaki Technologies, LLC | 768 | 1 | 4 |
| AS23389US | CAMPBELL-SCIENTIFIC - Campbell Scientific, Inc. | 768 | 1 | 3 |
| AS53951US | GLMX-AS - GLMX, LLC | 768 | — | 3 |
| AS22585US | MVS-CLOUD - MVS Cloud Inc. | 768 | — | 3 |
| AS23249US | AVECTRA - Avectra | 768 | — | 2 |
| AS393585US | HSI-WST-28500 - Hyland Software, Inc. | 768 | — | 3 |
| AS46109US | ARDENT-NETWORKS - Ardent Wireless, LLC | 768 | 4 | 7 |
| AS394672US | ALLEGIANTNETWORKS-01 - Allegiant Technology | 768 | — | 3 |
| AS14541US | GE-AIRCRAFT-ENGINES - GE AIRCRAFT ENGINES | 768 | — | 3 |
| AS397941US | TMHCC-PUBLIC-ASN-01 - HCC Service Company INC | 768 | — | 2 |
| AS40851US | TEMPWORKS - TEMPWORKS SOFTWARE INC. | 768 | — | 3 |
| AS398152US | ASN-CW-1 - Choice Wireless | 768 | — | 3 |
| AS399135US | 617A-AS-1 - 617A Corporation | 768 | 2 | 5 |