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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. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| — |
| 1 |
| AS398396US | NATOMAS-USD - Natomas Unified School District | 256 | — | 1 |
| AS205397US | AS-69HOST 69HOST LLC | 256 | — | 1 |
| AS399004US | COUNTERPATH-BOSTON - Counterpath, LLC | 256 | — | 1 |
| AS399766US | LOOK-TO-THE-RIGHT - Look To The Right, LLC | 256 | — | 1 |
| AS19912US | SKYPACKET-MCKEAN - SkyPacket | 256 | — | 1 |
| AS10551US | RAPID-CITY-REGIONAL - Monument Health Rapid City Hospital, Inc. | 256 | — | 1 |
| AS63350US | FBH-DMO-BGP - Riviera Utilities | 256 | — | 1 |
| AS36028US | TYSON-ENT-DC-VA1 - NEW CCH, LLC | 256 | 256 | 2 |
| AS400531US | WESTHOLT-ASN-01 - West Holt Memorial Hospital | 256 | — | 1 |
| AS27474US | IVN-LV - I-View Now, LLC | 256 | — | 1 |
| AS46097US | BMCSVL - BMC Software, Inc. | 256 | — | 1 |
| AS401195US | BSO-ASN-01 - Broward Sheriff's Office | 256 | — | 1 |
| AS40503US | AS40503 - Hiram College | 256 | — | 1 |
| AS31976US | REDHAT-0 - Red Hat, Inc. | 256 | — | 1 |
| AS46966US | CITYOFGI - City of Grand Island | 256 | 1 | 2 |
| AS3858US | NPPDNET - Nebraska Public Power District | 256 | — | 1 |
| AS18685US | PLANNET-OC-01 - PlanNet LLC | 256 | 1 | 2 |
| AS31821US | AS-RCS - Riverdale Country School | 256 | — | 1 |
| AS401323US | LAYERBYTE - LayerByte LLC | 256 | 256 | 2 |
| AS401668US | ROGERSNETWORKS - IPM Computers LLC | 256 | — | 1 |
| AS26822US | DIBC-INTERNET - DO IT BEST CORP. | 256 | — | 1 |
| AS402076US | CMSU - Canon Medical Systems USA, Inc. | 256 | — | 1 |
| AS22478US | LS-POWER-ASN-01 - LS Power Development, LLC | 256 | — | 1 |
| AS398932US | COA-ASN - The Children's Hospital of Alabama | 256 | — | 1 |
| AS27245US | HEIDRICK-CHICAGO - HEIDRICK | 256 | — | 1 |
| AS18962US | MEDITECH-1 - Medical Information Technology, Inc. | 256 | — | 1 |
| AS398072US | REGION7-ESC-DMAC - Region VII Education Service Center | 256 | — | 1 |
| AS11444US | ISHK-NTK - Neuteck LLC | 256 | — | 1 |
| AS26477US | AS-VCU - Vantage Credit Union | 256 | — | 1 |
| AS63118US | BGP-LATHAM - New York State United Teachers | 256 | — | 1 |
| AS35858US | ATMOS-ENERGY - ATMOS ENERGY CORP | 256 | — | 1 |
| AS399501US | COLPENN - City Of Lancaster | 256 | — | 1 |
| AS27566US | EQUINIX-EC-NY - Equinix, Inc. | 256 | 1 | 2 |
| AS22782US | AS1 - Texas A&M University | 256 | — | 1 |
| AS396375US | LCSVA - Lynchburg City Schools | 256 | — | 1 |
| AS402410US | COMPATIBLE-NETWORK - Compatible | 256 | 48 | 4 |
| AS27167US | FERRUM - Ferrum College | 256 | — | 1 |
| AS18965US | TRANSMARKETGROUP - TransMarket Group L.L.C. | 256 | — | 1 |
| AS402011US | AS-NETOMAT - Netomat LLC | 256 | 2 | 3 |
| AS46904US | WEITZ-LUX - Weitz & Luxenberg P.C | 256 | — | 1 |
| AS461US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 256 | — | 1 |
| AS401582US | SANJOSESHARKS-ASN-01 - San Jose Sharks, LLC | 256 | — | 1 |
| AS36346US | TOGETHER-INFRA - Together Computer, Inc. | 256 | 65.5K | 2 |
| AS395190US | PFGC-INET - PERFORMANCE FOOD GROUP, Inc. | 256 | — | 1 |
| AS13722US | DEFAULTROUTE - Default Route, LLC | 256 | 65.5K | 2 |
| AS396967US | TOWNSHIP-OF-WOODBRIDGE - Township of Woodbridge | 256 | — | 1 |