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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 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 | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| — |
| 1 |
| AS394044US | TERRITORIAL - Bank of Hope | 256 | — | 1 |
| AS46848US | VOTACALL-ONE - Votacall Inc. | 256 | — | 1 |
| AS13976US | TOPOCEAN-LAX1 - Topocean Consolidation Service (Los Angeles), Inc. | 256 | — | 1 |
| AS402431US | SYMMETRY-INVESTMENTS-01 - Symmetry | 256 | — | 1 |
| AS19347US | JACKSON-1 - JACKSON NATIONAL LIFE INSURANCE CO. | 256 | — | 1 |
| AS400344US | ETFH-PAL-01 - East Texas Broadband | 256 | — | 1 |
| AS17349US | INSITU-EQ - Insitu, Inc | 256 | — | 1 |
| AS36228US | LANCASTERBIBLECOLLEGE - Lancaster Bible College | 256 | — | 1 |
| AS395691US | XTTRIUM-ASN - XTTRIUM LABORATORIES, Inc. | 256 | — | 1 |
| AS394160US | DRARS - Advanced Radiology Services, P.C. | 256 | — | 1 |
| AS210015US | INTERFACEALL Interface Services LLC | 256 | 1 | 2 |
| AS19594US | SALEMHOSPITALASN - Salem Hospital | 256 | — | 1 |
| AS31774US | TACONIC-CAPITAL-ADVISORS - Taconic Capital Advisors L.P. | 256 | — | 1 |
| AS402157US | PUPPYGIRL-LABS - Puppygirl Labs LLC | 256 | 4 | 5 |
| AS3728US | ONR-ASN - LightEdge Solutions | 256 | — | 1 |
| AS402116US | AUTOSYS-NETWORK-01 - Automated Systems | 256 | — | 1 |
| AS12157US | ECM-ASN - Element Capital Management LLC | 256 | — | 1 |
| AS399665US | ZOLL-BROOMFIELD - ZOLL Medical Corporation | 256 | — | 1 |
| AS53529US | JCC-ASN - Jefferson County, Colorado | 256 | — | 1 |
| AS26882US | RIPPLE-BROADBAND - Ripple Broadband, LLC | 256 | 65.5K | 2 |
| AS40658US | USM-OK1 - US Monitoring, Inc. | 256 | — | 1 |
| AS54925US | FNSBSD - Fairbanks North Star Borough School District | 256 | — | 1 |
| AS46482US | CONTIGO - Vecima Networks Inc. | 256 | 1 | 2 |
| AS393860US | AVISYSTEMS - AVI SYSTEMS INC | 256 | — | 1 |
| AS399713US | KIRKLAND-ELLIS-DE - Kirkland & Ellis LLP | 256 | — | 1 |
| AS393848US | IKEA-NA-AS - IKEA North America Services, LLC | 256 | — | 1 |
| AS396405US | AC225 - Amida Care Inc | 256 | — | 1 |
| AS14687US | NLG-ASN-1 - National Life Insurance Company | 256 | — | 1 |
| AS32998US | MIMCOM - Mimbres Communications, LLC | 256 | — | 1 |
| AS47068US | GLENSFALLSHOSPITAL - Glens Falls Hospital | 256 | — | 1 |
| AS399814US | LAER-AS-LHR1 - UnitedLayer, LLC | 256 | 1 | 2 |
| AS396182US | VOIGTINDELECT-A - Voigt Industrial Electronics LLC | 256 | — | 1 |
| AS46928US | ACADEMY-SPORTS-OUTDOORS - Academy Sports + Outdoors | 256 | — | 1 |
| AS40646US | FRUL-1-40646 - FiberOptics R US | 256 | 4.1K | 2 |
| AS401895US | GLEASON-ROCHESTER - The Gleason Works | 256 | — | 1 |
| AS399022US | ALLEGIANCE-01 - ALLEGIANCE BENEFIT PLAN MANAGEMENT, INC | 256 | — | 1 |
| AS395146US | OTVM-AS-01 - Optiv | 256 | — | 1 |
| AS33370US | AS-RIVCTY - City of Riverside | 256 | — | 1 |
| AS14631US | EMPIREPAPER-WF - Empire Paper Company | 256 | — | 1 |
| AS32721US | WESBANCO - WesBanco Bank, Inc. | 256 | — | 1 |
| AS22339US | UDBQ-1 - University of Dubuque | 256 | 258 | 4 |
| AS16408US | LN-DREWU-ASN - Los Nettos | 256 | — | 1 |
| AS30434US | LOEWS - LOEWS CORPORATION | 256 | — | 1 |
| AS393693US | EA-BOGOTA - Electronic Arts, Inc. | 256 | — | 1 |
| AS29952US | XVAND-ISUTILITY - Xvand Technology Corp. | 256 | — | 1 |
| AS17194US | LPGAHQ - LPGA | 256 | — | 1 |