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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 | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,220 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 | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| NVRSLINE-AS - NVRS LINE inc. |
| 256 |
| 1 |
| 2 |
| AS402011US | AS-NETOMAT - Netomat LLC | 256 | 2 | 3 |
| AS394216US | PUEBLOCOUNTY - Pueblo County Government | 256 | — | 1 |
| AS26643US | ACE-002 - Ace Data Centers II, L.L.C. | 256 | — | 1 |
| AS19846US | UNION-COLLEGE - Union College | 256 | — | 1 |
| AS39958US | GTSX-01 - GTS Securities, LLC | 256 | — | 1 |
| AS400820US | HCDL-CINCINNATI-II-DATA-CENTER - H5 Data Centers | 256 | 4.1K | 2 |
| AS19879US | QOMRO - Propel Labs, LLC | 256 | 4.1K | 2 |
| AS20391US | PRGPARKING-DOMAIN - The Parking Spot | 256 | — | 1 |
| AS402070US | LSDR-ASN-01 - Lone Star Data Ranch LLC | 256 | 256 | 2 |
| AS40071US | IDIRECT - iDirect | 256 | — | 1 |
| AS36239US | OFFICERING-LAX - RATETEL, INC | 256 | — | 1 |
| AS54121US | DMSAS - David M. Schwarz Architects, Inc. | 256 | — | 1 |
| AS14993US | MHASN4-01 - Millennium Health, LLC | 256 | — | 1 |
| AS394210US | SYMBOTAS-1 - Symbotic | 256 | — | 1 |
| AS47091US | AIR-LIQUIDE-US000 - Air Liquide America | 256 | — | 1 |
| AS55139US | LDRY - Landry's, Inc. | 256 | — | 1 |
| AS33286US | TURLOCK-IRRIGATION-DISTICT - Turlock Irrigation District | 256 | — | 1 |
| AS46731US | AS-CITYOFJEFFERSON - City of Jefferson | 256 | — | 1 |
| AS400632US | KUSD-ASN-01 - KUSD | 256 | — | 1 |
| AS26861US | ROCKLIN-ASN - First Technology Federal Credit Union | 256 | — | 1 |
| AS55118US | VALUEDRUGCOMPANYVD-32AS - Value Drug Company Inc. | 256 | — | 1 |
| AS63484US | CREDIT-UNION-WEST - Credit Union West | 256 | — | 1 |
| AS86US | DXC-AS86 - DXC US Latin America Corporation | 256 | 193 | 14 |
| AS398402US | TROPICAL01 - TROPICAL SHIPPING USA, LLC | 256 | — | 1 |
| AS47041US | ASN-STBER-3 - ST BERNARDS HEALTHCARE | 256 | — | 1 |
| AS399209US | ACUMED-02 - Acumed, LLC | 256 | 1 | 2 |
| AS399846US | GOOCHLAND-COUNTY - County of Goochland | 256 | — | 1 |
| AS27212US | PERMAR - Per Mar Security | 256 | — | 1 |
| AS394276US | TAF - TurnAround Factor, Inc. | 256 | 3 | 3 |
| AS26780US | KMOB - Knobbe, Martens, Olson & Bear, LLP. | 256 | — | 1 |
| AS31958US | NGNSYS-AS - NGNSYS, LLC | 256 | — | 1 |
| AS26849US | AGFIRST-FARM-CREDIT-BANK - AgFirst Farm Credit Bank | 256 | — | 1 |
| AS394258US | AS-WCASD-1 - West Chester Area School District | 256 | — | 1 |
| AS402984US | GEORGE - GeorgeteVelde | 256 | — | 1 |
| AS397947US | SAINT-LUKES-HOSPITAL-CHESTERFIELD - St. Luke's Hospital | 256 | — | 1 |
| AS26018US | QAWOLF-ASN-01 - QA WOLF, INC. | 256 | — | 1 |
| AS23398US | DZSI - Dasan Zhone Solutions, Inc. | 256 | — | 1 |
| AS33128US | APOG-TOW - Apogee Telecom Inc. | 256 | — | 1 |
| AS46993US | SABA-CAPITAL-MANAGEMENT - Saba Capital Management, L.P. | 256 | — | 1 |
| AS401293US | AS401293 - FSTcloud | 256 | 5.2M | 11 |
| AS19135US | FRHS-ORG-ASN - FAITH REGIONAL HEALTH SERVICES | 256 | — | 1 |
| AS400299US | DIGITALPREZ-LLC - DigitalPrez Consulting | 256 | — | 1 |
| AS16571US | KDMC1 - Kings Daughters Medical Center | 256 | — | 1 |
| AS29403US | VERISIGN-AS VeriSign Inc. | 256 | — | 1 |
| AS402195US | MGH-MDF-01 - Marion General Hospital, Inc. | 256 | — | 1 |
| AS16741US | CITY-OF-LAKELAND - City Of Lakeland | 256 | — | 1 |