Loading…
How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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 | 24,630 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,219 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 | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS398336US | MODERN-WOODMEN-OF-AMERICA - Modern Woodmen of America | 256 | — | 1 |
| AS63144US | MCIT - Macomb County, Michigan | 256 | — | 1 |
| AS36542US | SERVERNET - Gwinnett County Government | 256 | — | 1 |
| AS63829US | PCV-9-63829 - PeoplesBank, A Codorus Valley Company | 256 | — | 1 |
| AS396219US | CBEC - Craig Botetourt Electric Cooperative | 256 | — | 1 |
| AS16398US | SMC-GP - Supermicro Computer | 256 | — | 1 |
| AS402409US | QFANALYTICS - QF | 256 | — | 1 |
| AS395448US | APOG-COLO-PA - Apogee Telecom Inc. | 256 | — | 1 |
| AS46391US | AS46391 - Bassett Medical Center | 256 | — | 1 |
| AS46689US | LEE-WIRELESS-01 - Lee Wireless, LLC | 256 | 256 | 2 |
| AS400831US | PINGITS - Ping ITS, LLC | 256 | 1 | 2 |
| AS393382US | KERNHEALTHSYSTEMS - Kern Family Health Care | 256 | — | 1 |
| AS18890US | HOGARTH-WORLDWIDE - Hogarth Worldwide Inc | 256 | — | 1 |
| AS32350US | CANDIDCOLORSYSTEMS - Candid Color Systems, Inc. | 256 | — | 1 |
| AS14269US | LIFELINE - Lifeline Computer Solutions, Inc. | 256 | — | 1 |
| AS34437US | COVERTHART-AS-34437 - CovertHart Networks | 256 | — | 1 |
| AS46492US | SWMICH-EDU-AS-01 - Southwestern Michigan College | 256 | — | 1 |
| AS54293US | VOCERA-AS - Vocera Communications, Inc. | 256 | — | 1 |
| AS46367US | URSAS - UTAH RETIREMENT SYSTEMS | 256 | — | 1 |
| AS395859US | INTERNETCONNECT - Internet Connect, LLC. | 256 | — | 1 |
| AS14308US | COL-ETS - City of Longmont | 256 | — | 1 |
| AS46677US | CAROLINA-AIRLINK - Carolina Airlink | 256 | 256 | 2 |
| AS401051US | MEDPACE-NA1 - Medpace, Inc. | 256 | — | 1 |
| AS398461US | PROLOGIC-CORE - Prologic Technology Services LLC | 256 | 4.1K | 2 |
| AS27545US | LV-INET - City National Bank | 256 | — | 1 |
| AS27339US | HRL-LAX-01 - HRL Laboratories, LLC | 256 | — | 1 |
| AS32106US | CHECKPOINT - Check Point Software Technologies, Inc. | 256 | — | 1 |
| AS402147US | FOS-AS-2026 - Fosdick Fulfillment Corporation | 256 | — | 1 |
| AS62817US | BARRETTHOSPITAL - BARRETT HOSPITAL AND HEALHCARE | 256 | — | 1 |
| AS46275US | ACU - AcuCall | 256 | — | 1 |
| AS15097US | FFF-AS - FFF Enterprises, Inc | 256 | — | 1 |
| AS32648US | MNAT - Morris, Nichols, Arsht and Tunnel | 256 | — | 1 |
| AS22293US | INSP-AS1 - InfoSpace Holdings, LLC | 256 | — | 1 |
| AS402153US | QUICK-TECH-RESULTS-01 - Quick Tech Results LLC | 256 | 256 | 2 |
| AS46299US | LITTLETON-AS - City of Littleton | 256 | — | 1 |
| AS11304US | BMH-ASN - Prisma Health | 256 | — | 1 |
| AS63463US | EXPRESSSERVER-INTERNET - Express Employment Professionals | 256 | — | 1 |
| AS13596US | RYMAX-CORP - Rymax Corp | 256 | — | 1 |
| AS396332US | S1-FLINT-DC - SITEONE LANDSCAPE SUPPLY, LLC | 256 | — | 1 |
| AS401456US | DREWUN-01 - Drew University | 256 | — | 1 |
| AS11926US | HARTSOFTWARE - Hart Software, Inc. | 256 | — | 1 |
| AS399232US | SETON-HOME - Seton Home Study School | 256 | — | 1 |
| AS399774US | ANDELYN-BIOSCIENCES-01 - Andelyn Biosciences, Inc. | 256 | — | 1 |
| AS53754US | LCPA-AS - Lincoln Center for the Performing Arts, Inc. | 256 | — | 1 |
| AS62945US | CORNERSTONE - Cornerstone Information Systems, Inc. | 256 | — | 1 |
| AS18967US | GOUCHER COLLEGE - Goucher College | 256 | — | 1 |