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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) | 227.7M | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,186 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,373 |
| 256 |
| — |
| 1 |
| AS33644US | OSUFCUASN - Oregon State Credit Union | 256 | — | 1 |
| AS26007US | SWICKTECH - Swick Technologies, LLC | 256 | — | 1 |
| AS395905US | SANDRIDGE - Sandridge Food Corporation | 256 | — | 1 |
| AS400895US | SAMSUNG-ELECTRONICS-AMERICA - Samsung Electronics America, Inc. | 256 | — | 1 |
| AS33477US | KNOX-COLLEGE-1837 - Knox College | 256 | — | 1 |
| AS401202US | SPL-HQ - Sound, Production & Lighting LLC | 256 | 1 | 2 |
| AS7816US | CTC - Concurrent Technologies Corporation | 256 | — | 1 |
| AS395286US | BELOITHEALTHSYSTEM - Beloit Health System, Inc. | 256 | — | 1 |
| AS23086US | POUNDBANG-HOSTING - Pound Bang Incorporated | 256 | — | 1 |
| AS14047US | FERRIS-MFG-CORP - Ferris MFG Corp | 256 | — | 1 |
| AS32295US | DESIGNCOLLECTIVE - Design Collective, Inc. | 256 | — | 1 |
| AS46711US | TRUEVALUE-ASN-01 - True Value Company, L.L.C. | 256 | — | 1 |
| AS399796US | BERNINA - Bernina of America, LLC | 256 | — | 1 |
| AS397843US | ESP - EyeCare Services Partners Management LLC | 256 | — | 1 |
| AS11895US | KOFAX - Kofax, Inc. | 256 | — | 1 |
| AS18507US | NYMEX-EXTRANET - NEW YORK MERCANTILE EXCHANGE | 256 | — | 1 |
| AS46940US | AS46940 - IAC/InterActiveCorp | 256 | — | 1 |
| AS399496US | SYBT - STOCK YARDS BANK AND TRUST COMPANY | 256 | — | 1 |
| AS401258US | ZNX-01 - Zynex Medical, Inc. | 256 | — | 1 |
| AS23363US | CITYOFLEWISVILLE - City of Lewisville | 256 | — | 1 |
| AS395375US | AMC-ASN - Athens Micro | 256 | — | 1 |
| AS63455US | AS63455 - C&J Spec-Rent Services, Inc. | 256 | — | 1 |
| AS393901US | TYLERTECH-NIC3 - Tyler Technologies, Inc. | 256 | — | 1 |
| AS399612US | SAPPHIREK12-ASN01 - Sapphire Software | 256 | 4.1K | 3 |
| AS197570US | BladeX BladeX Networks LLC | 256 | — | 1 |
| AS398439US | GUEST-CHOICE-TV - GUEST CHOICE TV LLC | 256 | 65.5K | 2 |
| AS397718US | RICHLAND-BGP-01 - Richland County | 256 | — | 1 |
| AS397260US | CYNAXA - Cynaxa LLC | 256 | — | 1 |
| AS1852US | UCDC-NET - University of California - Office of the President | 256 | — | 1 |
| AS63012US | EBRSO - East Baton Rouge Sheriff | 256 | — | 1 |
| AS21934US | VITAC - VITAC Corporation | 256 | — | 1 |
| AS43737US | NODESDIRECT Nodes Direct Holdings LLC | 256 | — | 1 |
| AS393374US | TEGNA-CORP-EAST1 - TEGNA Inc. | 256 | — | 1 |
| AS401264US | UACCM-AS - University of Arkansas Community College at Morrilton | 256 | 256 | 2 |
| AS399490US | DWS-LTAM-AR - Disney Worldwide Services, Inc. | 256 | — | 1 |
| AS396459US | VENANGO-WAN - County of Venango | 256 | — | 1 |
| AS15137US | JETPAY-AS - JetPay, LLC | 256 | — | 1 |
| AS13714US | AS-AFILIAS-SYD1 - Afilias, Inc. | 256 | — | 1 |
| AS14887US | WAV-IA - Waverly Health Center | 256 | — | 1 |
| AS399817US | LAER-AS-DWF1 - UnitedLayer, LLC | 256 | 1 | 2 |
| AS399948US | CCU-LAKEWOOD - Colorado Christian University | 256 | — | 1 |
| AS203888US | USKVM - USKVM LLC | 256 | 16 | 2 |
| AS394979US | ACELANET-1 - RiverStreet Networks | 256 | — | 1 |
| AS399287US | KRISPY-KREME - Krispy Kreme | 256 | — | 1 |
| AS30244US | PSI-NY-1 - Amherst Pierpont Securities | 256 | — | 1 |
| AS54169US | MGH-ION-1 - Marin General Hospital | 256 | — | 1 |