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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| — |
| — |
| 0 |
| AS197867US | WONG-AS FELIX WONG TRADING AS FANTASTIC HOMEWARE USA CO | — | 256 | 1 |
| AS2978US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS26238US | OPTICALS - OPTICAL SOCIETY OF AMERICA | — | — | 0 |
| AS3638US | GLOBALI - Shaman Exchange, Inc. | — | — | 0 |
| AS3619US | MCIASN-BLK - Verizon Business | — | — | 0 |
| AS3046US | RICE-AS3046 - Rice University | — | — | 0 |
| AS3075US | CITI9 - Citigroup Inc. | — | — | 0 |
| AS3008US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS400546US | EXAGRID-ASN - Exagrid | — | 2 | 2 |
| AS2382US | WISCNET2-AS - WiscNet | — | — | 0 |
| AS2935US | CDOLNET-GOV - Connecticut Department of Labor | — | — | 0 |
| AS2887US | RRM-ASN - Ford Motor Company | — | — | 0 |
| AS2745US | DNIC-AS-02745 - United States Department of Defense (DoD) | — | — | 0 |
| AS4360US | AGNES-SCOTT - Agnes Scott College | — | — | 0 |
| AS30624US | CME - Chicago Mercantile Exchange | — | — | 0 |
| AS10822US | UNISTAR - Unistar Entertainment, Inc | — | — | 0 |
| AS10789US | BIGNET-AS - The Bignet | — | — | 0 |
| AS4161US | TIN-1 - Air Force Systems Networking | — | — | 0 |
| AS13436US | INTERNET2-CONF - Internet2 | — | — | 0 |
| AS13907US | NCR-HOSPITALITY - NCR Voyix Corporation | — | — | 0 |
| AS13891US | 21ST-CENTURY-ONCOLOGY-INC - GENESISCARE USA OF FLORIDA, LLC | — | — | 0 |
| AS20240US | VENTURAFOODS - VENTURA FOODS, LLC | — | — | 0 |
| AS13455US | ASGROUP1 - Reach Marketing LLC | — | — | 0 |
| AS12255US | AMGEN - AMGEN, Inc. | — | — | 0 |
| AS12137US | LHBIS-IPV4-NET01 - LightHouse Business Information Solutions, LLC | — | — | 0 |
| AS32060US | CHARTER-32060-NA - Charter Communications LLC | — | — | 0 |
| AS11871US | DUKE-MW-AS11871 - Duke Energy Corporation | — | — | 0 |
| AS32290US | RUSTNET - RUST COLLEGE | — | — | 0 |
| AS32265US | AS-WAVE-SPARE-1 - Wave Broadband | — | — | 0 |
| AS30531US | TELINTA-AS1 - Telinta, Inc. | — | — | 0 |
| AS398024US | ELEMENT-4-SWGR - Element Four | — | 1 | 1 |
| AS30476US | T2-CT-SHN - Charles Schwab & Co., Inc. | — | — | 0 |
| AS30420US | YCM - YORK CAPITAL MANAGEMENT (US) ADVISORS, L.P. | — | — | 0 |
| AS23328US | EST-INC-ASN - EST, Inc. | — | — | 0 |
| AS30106US | ANCOR - Ancor Information Management | — | — | 0 |
| AS29847US | SI-AS1 - Screws Industries, Inc. | — | — | 0 |
| AS29845US | DAVISMALM-ASN - Davis Malm & D'Agostine P.C. | — | — | 0 |
| AS33612US | TUMBLR - Yahoo Holdings Inc. | — | — | 0 |
| AS33649US | SHENTEL - Shenandoah Cable Television LLC | — | — | 0 |
| AS33410US | MANDIANT-US2 - Mandiant, Inc. | — | — | 0 |
| AS33471US | ARI-CUSTOMERS - Automotive Rentals, Inc. | — | — | 0 |
| AS32791US | OCNL-AS32791 - Operations & Compliance Network LLC | — | — | 0 |
| AS33188US | AUTOWC-01 - Auto Warehousing Company | — | — | 0 |
| AS33047US | AKAMAI-INSTART-ASN - Akamai Technologies, Inc. | — | — | 0 |
| AS32940US | EVOCATIVE3 - Evocative, Inc. | — | — | 0 |
| AS25721US | AS-CHICAGO - Morningstar, Inc. | — | — | 0 |