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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 | 24,358 |
| 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 |
| 233 |
| 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 | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,342 |
| 512 |
| — |
| 1 |
| AS16873US | AS-HARTS - HART SYSTEMS INC | 512 | — | 2 |
| AS36011US | AHSYS-ASN - Atlantic Health System | 512 | — | 2 |
| AS397873US | AS-SOLADRIVE - SolaDrive | 512 | — | 2 |
| AS395244US | LITHIA - Lithia Motors, Inc. | 512 | — | 2 |
| AS400672US | AS-PHOENIXNAP-LA0 - PhoenixNAP LLC | 512 | 257 | 4 |
| AS53377US | TGNA-WVEC - TEGNA Inc. | 512 | — | 2 |
| AS396423US | COASTALFIBERNET - Coastal FiberNet, LLC | 512 | — | 2 |
| AS46577US | HALNET-FMT2 - Halibut Electronics, Inc | 512 | 2 | 4 |
| AS3424US | HFMT - National Nuclear Security Administration, Kansas City Plant | 512 | 17 | 4 |
| AS18433US | ONESKY-FLIGHT-LLC - OneSky | 512 | — | 2 |
| AS400651US | APOG-CARLOW - Apogee Telecom Inc. | 512 | — | 2 |
| AS400782US | HARRIS-COUNTY-PUBLIC-LIBRARY - Harris County Public Library | 512 | — | 1 |
| AS19442US | AGILENT-SCS - Agilent Technologies, Inc. | 512 | — | 2 |
| AS397263US | TECHLOQ-US - Techloq Limited | 512 | 512 | 4 |
| AS32280US | THE-EWSCRIPPS - The E.W. Scripps Company | 512 | — | 2 |
| AS21592US | MULTIVIEW - Multi-View Inc. | 512 | — | 2 |
| AS62884US | HKLAW - Holland & Knight LLP | 512 | — | 2 |
| AS62723US | CARFAX - CARFAX, Inc. | 512 | — | 2 |
| AS33587US | BRECKINRIDGE-AS - Breckinridge Capital Advisors | 512 | — | 2 |
| AS21553US | ASP-MAIN - Aspirus, Inc. | 512 | — | 2 |
| AS400127US | AILIC-01 - MassMutual Ascend Life Insurance Company | 512 | — | 1 |
| AS13779US | BASISTECH - Basis Technology | 512 | — | 2 |
| AS396218US | NRA - National Rifle Association of America | 512 | — | 2 |
| AS400597US | SILICONDUST - Silicondust USA, Inc. | 512 | 2 | 4 |
| AS18567US | CUTX12-ASN - Credit Union of Texas | 512 | — | 2 |
| AS26543US | IBM-CMS-RPL - IBM | 512 | — | 1 |
| AS53374US | NTIU5 - Northwest Tri-County IU 5 | 512 | — | 2 |
| AS54017US | UCARE-MN - UCare Minnesota | 512 | — | 2 |
| AS395143US | FMG-AS-1 - Fire Mountain Gems and Beads Inc. | 512 | — | 2 |
| AS5860US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS36070US | NCHCORP - NCH Corporation | 512 | — | 1 |
| AS16563US | NEXUM-ASN - Nexum, Inc. | 512 | — | 1 |
| AS402547US | JWYNEGARJR-INC - J | 512 | 1 | 3 |
| AS468US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 512 | — | 1 |
| AS402187US | AANSYS-NET - AANSys Network LLC | 512 | — | 2 |
| AS13705US | COLQUITT-CONNECT-01 - City of Colquitt | 512 | — | 2 |
| AS400329US | CLEARPATH-FIBER-01 - ClearPath Fiber | 512 | — | 2 |
| AS14696US | GU-LFTC - GLOBALFOUNDRIES U.S. Inc. | 512 | — | 1 |
| AS32837US | WCL-50-AS - Williams & Connolly, LLP | 512 | — | 2 |
| AS393383US | SISD-ASN - Spring Independent School District | 512 | — | 2 |
| AS36576US | WTAE-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS196629US | DOMINION-AS Antipov Oleg | 512 | — | 2 |
| AS397900US | FIRSTDAY - FirstDay Foundation | 512 | — | 2 |
| AS33465US | TSP-NET - Johnson Controls Inc | 512 | — | 2 |
| AS6318US | CHECKFREE - Fiserv Solutions, LLC | 512 | — | 2 |
| AS27543US | ELLIOTTMGMT - Elliott Associates | 512 | — | 2 |