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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 |
| HP-ASN - The Herald-Palladium |
| 256 |
| — |
| 1 |
| AS395979US | ONEDIGITAL-AS1 - Digital Insurance | 256 | — | 1 |
| AS14934US | AGS-LLC-AGO - AGS | 256 | — | 1 |
| AS402216US | EWL-TTFF-2NM - Town to Farm Fiber | 256 | 256 | 2 |
| AS394389US | GLPI-001 - Gaming and Leisure Properties Inc | 256 | — | 1 |
| AS398045US | HULA-00 - Hula LLC | 256 | 4.1K | 2 |
| AS55109US | KASON-ASN - KASON INDUSTRIES INC. | 256 | — | 1 |
| AS3763US | AS-BELD-1 - BELD | 256 | 256 | 2 |
| AS137937US | TNSI-AS-AP - Transaction Network Services | 256 | — | 1 |
| AS394139US | MMH - Madison Co Memorial Hospital | 256 | — | 1 |
| AS5761US | MICROSOFT-CORP-MSN-AS-SATURN - Microsoft Corporation | 256 | 1 | 2 |
| AS395812US | HCBE - Haralson County Board of Education | 256 | — | 1 |
| AS398563US | MIBROADBAND - MiBroadband, LLC | 256 | — | 1 |
| AS54079US | BENNINGTON-COLLEGE - Bennington College | 256 | — | 1 |
| AS32672US | TTIINC - TTI, Inc. | 256 | — | 1 |
| AS399703US | NYS-BRIDGE-AUTHORITY - New York State Bridge Authority | 256 | — | 1 |
| AS395666US | ISG-01 - Infinity Sales Group, LLC | 256 | — | 1 |
| AS399099US | PCPS-ASN - petersburg city public schools | 256 | — | 1 |
| AS11605US | FLUIDSOFT-14 - Fluidsoft Incorporated | 256 | — | 1 |
| AS397774US | CBDL-DFW1-AS1 - Covered Bridge Data, LLC | 256 | 4.1K | 2 |
| AS395818US | SAFE-PROP - SAFEGUARD PROPERTIES MANAGEMENT, LLC | 256 | — | 1 |
| AS394061US | FRANKLIN-COUNTY-AS - Franklin County | 256 | — | 1 |
| AS394550US | SFCOMPUTE - San Francisco Compute Company | 256 | 1 | 2 |
| AS398745US | WPCAREY - WPC | 256 | — | 1 |
| AS396512US | MM-AS1 - Movement Mortgage | 256 | — | 1 |
| AS400052US | GUTHRIE-IA - Guthrie County | 256 | — | 1 |
| AS22657US | ASN30005 - Digital Ignition | 256 | — | 1 |
| AS14344US | AHEAD - AHEAD | 256 | — | 1 |
| AS401835US | BCR - Brass City Residences Inc. | 256 | 19 | 20 |
| AS32056US | SHAMROCKFOODS-INTERNET-01 - SHAMROCK FOODS COMPANY | 256 | — | 1 |
| AS394115US | SRALAB-AS - Rehabilitation Institute of Chicago | 256 | — | 1 |
| AS62889US | HMA-ASN1 - Healthcare Management Administrators, Inc. | 256 | — | 1 |
| AS30014US | EDF-RE-MONTREAL - EDF Renewables, Inc. | 256 | — | 1 |
| AS400403US | AS-LSTRAT-RTP - Local Stratus | 256 | — | 1 |
| AS18807US | COMM-WIRELESS-N - Community Wireless | 256 | 65.5K | 2 |
| AS33393US | MMMI - Michigan Millers Mutual Insurance Company | 256 | — | 1 |
| AS33521US | MISSOULA-COUNTY-PUBLIC-SCHOOLS - Missoula County Public Schools | 256 | — | 1 |
| AS397786US | ASPEN-SMART-NETWORKS - Aspen Wireless Technologies Inc | 256 | 65.5K | 2 |
| AS401314US | GOLDENVM-LLC - GoldenVM LLC | 256 | — | 1 |
| AS40488US | NII-RICHFIELD - National Interstate Insurance Company | 256 | — | 1 |
| AS393463US | GAF-TOTOWA-65-223-143-0 - GAF | 256 | — | 1 |
| AS395550US | PHPC-ASN - PARTNERSHIP HEALTHPLAN OF CALIFORNIA | 256 | — | 1 |
| AS398078US | ISPTEK - ISPTek | 256 | 256 | 2 |
| AS33732US | WXYZ-HOSTING-01 - WXYZ HOSTING LLC | 256 | — | 1 |
| AS14216US | ISHIP - IShip.com | 256 | — | 1 |
| AS46591US | DPAM-AS1 - DENSO Products and Services Americas, INC. | 256 | — | 1 |
| AS399498US | PRIVATE-NETWORKS - Private Networks Labs LLC | 256 | — | 1 |