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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 |
| HUNTSVILLE-MEMORIAL-HOSPITAL - HUNTSVILLE MEMORIAL HOSPITAL |
| 256 |
| — |
| 1 |
| AS23161US | PHOTOSHELTER-LON - PhotoShelter, Inc. | 256 | 1 | 2 |
| AS40771US | IML - Illinois Mutual Life Insurance Company | 256 | — | 1 |
| AS40774US | BSM-9-ASN - Bay State Milling Company | 256 | — | 1 |
| AS18436US | MSPD-ASN - Mohegan Sun Pocono Downs | 256 | — | 1 |
| AS397120US | CHEMUNGCONY - Chemung County, New York | 256 | — | 1 |
| AS393901US | TYLERTECH-NIC3 - Tyler Technologies, Inc. | 256 | — | 1 |
| AS21761US | CLUBCAR-01 - Club Car, LLC | 256 | — | 1 |
| AS396459US | VENANGO-WAN - County of Venango | 256 | — | 1 |
| AS396090US | SEMINOLECOUNTY - Seminole County Government | 256 | — | 1 |
| AS11874US | COLUMBUSREGIONALHOSPIAL - Columbus Regional Hospital | 256 | — | 1 |
| AS30562US | SCARSDALE-SCHOOLS - Scarsdale Schools District | 256 | — | 1 |
| AS31887US | TRINITYHEALTH-MIDATLANTIC - Trinity Health Corporation | 256 | — | 1 |
| AS20008US | IDEMIA-IPS - Idemia Identity & Security USA, LLC | 256 | — | 1 |
| AS11219US | GLIDEWELL - James R. Glidewell Dental Ceramics Inc. | 256 | — | 1 |
| AS402238US | VTT - Van Oss Telegraph and Telephone LLC | 256 | 256 | 2 |
| AS62720US | IRONTONTELEPHONECO - Ironton Telephone Company | 256 | — | 1 |
| AS400020US | GRANTEP-ASN - Grant Supplies | 256 | — | 1 |
| AS400642US | NX-EDGE-NETWORK-LLC - NX Edge Network LLC | 256 | 1 | 2 |
| AS33599US | RELIABLE-REPORTS-OF-TEXAS-INC - Reliable Reports of Texas, Inc. | 256 | — | 1 |
| AS215520US | JOSH-BOYD JOSHUA BOYD | 256 | 1 | 2 |
| AS395229US | TEMPLE-COLLEGE-TX - Temple College | 256 | — | 1 |
| AS14681US | JAYCO - Jayco, Inc | 256 | — | 1 |
| AS32146US | COB-MT - City of Bozeman | 256 | — | 1 |
| AS29785US | DACSIX-CENTRAL - DACS-IX | 256 | 65 | 6 |
| AS32691US | CSC - Corporation Service Company | 256 | — | 1 |
| AS398117US | WILSON-COLLEGE - Wilson College | 256 | — | 1 |
| AS1096US | IZUMA-PROD-1 - Izuma Networks Inc. | 256 | — | 1 |
| AS401791US | FDR-068 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS395604US | COCORTEZ-2016 - City of Cortez | 256 | — | 1 |
| AS63006US | TRUHEARINGWJ - TruHearing, Inc | 256 | — | 1 |
| AS400151US | SPARC-BROOKS-BROTHERS - BB OPCO LLC | 256 | — | 1 |
| AS401267US | VERIRA - VERIRA LLC | 256 | — | 1 |
| AS19817US | MIU-IA - Maharishi International University | 256 | — | 1 |
| AS398918US | ULF-ASN-01 - Upper Lakes Foods, Inc. | 256 | — | 1 |
| AS207419US | Richard-Marino Richard Marino | 256 | — | 1 |
| AS46217US | BOLD-MSUMANKATO - Apogee Telecom Inc. | 256 | — | 1 |
| AS12279US | LAYER-EIGHT - VertitechIT, Inc. | 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 |