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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 | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| 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.
32,202 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| 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 | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS29964US | MCCORMICK-AND-COMPANY - McCormick & Company Inc. | 256 | — | 1 |
| AS394553US | SARC-01 - Samsung Austin Research and Development Center | 256 | — | 1 |
| AS205811US | sfm-pop Supply Frame, Inc. | 256 | — | 1 |
| AS54860US | SOUTHERN-ILLINOIS-HEALTHCARE - Southern Illinois Hospital Services | 256 | — | 1 |
| AS13699US | SWFLAFC - SWF Associates in Podiatric Medicine & Surgery | 256 | 1 | 2 |
| AS400228US | STARLIGHTFIBER - Starlight Fiber Ltd | 256 | 8 | 2 |
| AS210655US | LaCrette Brian LaCrette | 256 | 1 | 2 |
| AS401970US | CASILA-FLOWER - CASILAFLOWER | 256 | — | 1 |
| AS402425US | QLL-AS-001 - QOREXA | 256 | — | 1 |
| AS32655US | TSG-RESOURCES - TSG Resources, Inc. | 256 | 256 | 2 |
| AS399022US | ALLEGIANCE-01 - ALLEGIANCE BENEFIT PLAN MANAGEMENT, INC | 256 | — | 1 |
| AS400657US | DACOMM - DACOMM Inc. | 256 | — | 1 |
| AS27177US | SIMPLEASN-SIMPLEHUMAN-US - SIMPLEHUMAN, LLC | 256 | — | 1 |
| AS22574US | COCONET - CocoNet Corporation | 256 | — | 1 |
| AS401023US | KWIKBIT-INTERNET - Kwikbit Internet, Inc. | 256 | 1 | 2 |
| AS214806US | FEMBOY Femboy Cyber Networks LLC | 256 | 1 | 2 |
| AS396179US | SVH-KS-INET-01 - STORMONT-VAIL HEALTHCARE, INC. | 256 | — | 1 |
| AS54443US | EP-ISD272 - Eden Prairie School District | 256 | — | 1 |
| AS400919US | AKARDAM-NET - Akardam Networks | 256 | 4 | 5 |
| AS401779US | AAROBAND - AaroBand, Inc. | 256 | 4.1K | 2 |
| AS394580US | FCVA-INET - County of Franklin Virginia | 256 | — | 1 |
| AS19347US | JACKSON-1 - JACKSON NATIONAL LIFE INSURANCE CO. | 256 | — | 1 |
| AS32447US | MARTI-AS - MARTIN RESOURCE MANAGEMENT CORP. | 256 | — | 1 |
| AS396161US | DSM-AIRPORT-AUTHORITY - Des Moines Airport Authority | 256 | — | 1 |
| AS401106US | TECHIES365 - Techies365 | 256 | 3 | 4 |
| AS402360US | BRFLASHV - BRF | 256 | — | 1 |
| AS397992US | AXION - Axion | 256 | — | 1 |
| AS399540US | ABSCI-US-001 - AbSci Corporation | 256 | — | 1 |
| AS401017US | AAICE-ASN - AAICE | 256 | — | 1 |
| AS399287US | KRISPY-KREME - Krispy Kreme | 256 | — | 1 |
| AS31750US | METHODIST-HEALTHCARE - Methodist Hospital of Memphis | 256 | — | 1 |
| AS393690US | AS-MARITIME - Massachusetts Maritime Academy | 256 | — | 1 |
| AS54970US | NORTHERN-AIR-CARGO - NORTHERN AIR CARGO | 256 | — | 1 |
| AS398567US | LIGHTING-READY-HOSTING-LLC - Lightning Ready Hosting, LLC | 256 | — | 1 |
| AS30628US | SRC-AUTOMOTIVE-INC - SRC Automotive Inc. | 256 | — | 1 |
| AS673US | DNIC-AS-00673 - Headquarters, USAISC | 256 | — | 1 |
| AS54345US | FARM-BUREAU-MUTUAL-INSURANCE-OF-IDAHO-01 - FARM BUREAU MUTUAL INSURANCE COMPANY OF IDAHO | 256 | 1 | 2 |
| AS398269US | PAYERCOMPASS-01 - Voltaire Health, LLC | 256 | — | 1 |
| AS32920US | ITHAKA-AS32920 - ITHAKA Harbors, Inc. | 256 | — | 1 |
| AS32426US | WV-SCHOOL-OF-OSTEOPATHIC-MEDICINE - WV School of Osteopathic Medicine | 256 | — | 1 |
| AS31807US | RACKALOHA1 - RackAloha, LLC | 256 | 16 | 2 |
| AS39991US | CORELOCATED-CORP - Core Located Global LLC | 256 | — | 1 |
| AS36186US | 3DS-AS02 - 3ds Communications LLC | 256 | 256 | 2 |
| AS394095US | LUCASMUSEUM-BGP-2024 - Lucas Museum of Narrative Art | 256 | — | 1 |
| AS22294US | ROTECH-HEALTHCARE - ROTECH HEALTHCARE, INC | 256 | — | 1 |
| AS54169US | MGH-ION-1 - Marin General Hospital | 256 | — | 1 |