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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| — |
| 2 |
| AS395523US | IGSENERGY - IGS Energy | 512 | — | 2 |
| AS397116US | WMLPNET-AS-01 - Wellesley Municipal Light Plant | 512 | — | 1 |
| AS31973US | WPS-1765DC - Wisconsin Physicians Service Insurance Corp. | 512 | — | 2 |
| AS399894US | TAYLORED-FMI - Taylored Services, LLC | 512 | — | 2 |
| AS23190US | AESPAC - AES Pacific Inc. | 512 | — | 2 |
| AS36376US | AS-CHENIERE - Cheniere Energy, Inc. | 512 | — | 2 |
| AS20269US | VAIL-SCHOOL-DISTRICT-1 - Vail School District | 512 | — | 2 |
| AS16622US | NOVARAD - Novarad Corporation | 512 | 1 | 2 |
| AS32038US | ALCORN-LOR-01 - Institutions of Higher Learning | 512 | — | 2 |
| AS32854US | PCTCU-ASN - Achieva Credit Union | 512 | — | 2 |
| AS26998US | NFII-ASN - NFI Industries, Inc | 512 | — | 2 |
| AS397080US | MEDPOINT - MedPOINT Management | 512 | — | 2 |
| AS399480US | TI-GARLAND-QX-HUB - Texas Instruments Incorporated | 512 | — | 2 |
| AS22228US | TOKYO-ELECTRON-US-HOLDINGS-INC - Tokyo Electron U.S. Holdings, Inc. | 512 | — | 2 |
| AS14100US | GARBERMAN01 - GARBER MANAGEMENT GROUP, INC. | 512 | — | 2 |
| AS5022US | SSEMC - Snapping Shoals Electric Membership Corporation | 512 | — | 2 |
| AS30672US | AS30672 - QMACS | 512 | — | 2 |
| AS396220US | AS-SNOPUD - Public Utility District No. 1 of Snohomish County | 512 | — | 1 |
| AS19188US | SJ-ARMANINO-01 - Armanino LLP | 512 | — | 2 |
| AS19364US | SEBAGO-FIBER - Sebago Fiber & Wifi, LLC | 512 | 4.1K | 3 |
| AS22615US | MONROECOUNTYCOMMSCH - Monroe County Community School Corporation | 512 | — | 2 |
| AS398447US | OHANACRAFT - OHANACRAFT, LLC | 512 | 4 | 6 |
| AS18459US | UAIC-INTERNET - UNITED AUTOMOBILE INSURANCE | 512 | — | 2 |
| AS19599US | COPYRIGHT - COPYRIGHT CLEARANCE CENTER | 512 | — | 2 |
| AS961US | ACHIEVE-US - Achieve Wireless Inc | 512 | 257 | 4 |
| AS47029US | CAPSTONE - Capstone Logistics, LLC | 512 | — | 2 |
| AS13740US | HYPERNET-AS - 1stel, Inc. | 512 | — | 2 |
| AS394764US | CONFLUENCE-HEALTH - Confluence Health | 512 | — | 2 |
| AS33161US | CHUMASH-ENTERPRISES - Chumash Casino Resort | 512 | — | 2 |
| AS31922US | DATTO-ENT - Datto, LLC | 512 | — | 2 |
| AS53284US | SR-TELECOM - Standing Rock Telecom | 512 | — | 2 |
| AS63395US | FLEXTRADE-SYSTEMS-INC - Flextrade Systems, Inc. | 512 | — | 2 |
| AS397515US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 512 | 2 | 4 |
| AS20007US | CIT-ASN-01 - cloudIT | 512 | — | 2 |
| AS36760US | KHOG-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS393567US | AS-EQX-ATLC-01 - Atlanticus Holdings Corporation | 512 | — | 2 |
| AS62606US | SECTOR7LLC - Sector 7, LLC | 512 | — | 2 |
| AS394064US | AECI - Associated Electric Cooperative, Inc. | 512 | — | 2 |
| AS46252US | HIA-TRCY - Hagerty Insurance Agency LLC | 512 | — | 2 |
| AS31788US | POPPY - Poppy Inc | 512 | 4.1K | 3 |
| AS394880US | VITALEDGE - e-Emphasys Technologies Inc | 512 | — | 2 |
| AS30258US | HUNTINGTONMEMORIALHOSPITAL - Huntington Memorial Hospital | 512 | — | 2 |
| AS36763US | WBBH - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS17405US | FISERV-CORPORATE - Fiserv Solutions, LLC | 512 | — | 2 |
| AS22451US | HRH - Halifax Regional Hospital | 512 | — | 2 |
| AS398322US | ESFCU-01 - Educational Systems Federal Credit Union | 512 | — | 2 |