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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 | 24,346 |
| 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 | 4,357 |
| 512 |
| — |
| 1 |
| AS22156US | DANANET - Dana Consulting, Inc. | 512 | — | 1 |
| AS11548US | HERITAGE-UNIV-AS - Heritage University | 512 | — | 2 |
| AS53727US | AS-PENGUIN - Penguin Networks | 512 | 36 | 8 |
| AS47016US | EXTRON-ELECTRONICS - Extron Electronics | 512 | — | 2 |
| AS400012US | YISD-COLO-500 - Ysleta Independent School District | 512 | — | 2 |
| AS32368US | MOUSER-ELECTRONICS - mouser electronics | 512 | — | 2 |
| AS395332US | GINKOID - ginkoid LLC | 512 | — | 2 |
| AS36244US | SVEC - Shenandoah Valley Electric Cooperative | 512 | — | 1 |
| AS395141US | PRMHQ-AS1 - Primisys Computer Systems & Support, LLC | 512 | 65.5K | 3 |
| AS398952US | AG-ASN - AMBRY GENETICS CORPORATION | 512 | — | 1 |
| AS395454US | KUKUI-NET1 - Kukui | 512 | — | 1 |
| AS20182US | ESSENTGTY001 - ESSENT GUARANTY, INC. | 512 | 17 | 4 |
| AS40785US | AS-OMNIVA-NJDC - Omniva LLC | 512 | 1 | 3 |
| AS1803US | COGENT-1803 - Cogent Communications, LLC | 512 | — | 2 |
| AS397690US | USTX04 - 1A Smart Start LLC | 512 | 1 | 3 |
| AS64210US | ALTERA - Altera Corporation | 512 | — | 2 |
| AS19521US | AS-EPOXYTEL-US - Epoxytel Networks LLC | 512 | 1 | 3 |
| AS54364US | RR - Rosen Research LLC | 512 | 16 | 3 |
| AS33297US | VEGAS - Sumofiber | 512 | 2 | 4 |
| AS395701US | EPICGA-DC2-AS - Epic Games Inc. | 512 | — | 2 |
| AS394358US | SECU-1 - State Employees' Credit Union | 512 | — | 2 |
| AS400271US | INTERCO-ASN01 - Interco Trading, Inc. | 512 | — | 2 |
| AS54230US | COMMERCIALCOMMUNICATIONSINC - Commercial Communications, Inc. | 512 | — | 2 |
| AS25916US | FREEMAN-COMPANIES - The Freeman Companies | 512 | — | 2 |
| AS54468US | CHMCA - Children's Hospital Medical Center of Akron | 512 | — | 2 |
| AS7234US | RUSSELL7234 - Frank Russell | 512 | — | 1 |
| AS53769US | BBKLAW - Best Best & Krieger LLP | 512 | — | 2 |
| AS30704US | WC-1162 - WellSky Corporation | 512 | — | 2 |
| AS36471US | KDSS-23-36471 - Kratos Defense & Security Solutions, Inc. | 512 | — | 2 |
| AS400441US | HYPHA-US1 - WINAC | 512 | — | 2 |
| AS397297US | AHL-DFW1-01 - AVENU HOLDINGS, LLC | 512 | — | 2 |
| AS398949US | KISSUSA-NY - KISS NAIL PRODUCTS, INC | 512 | — | 2 |
| AS399036US | XIGENT-SOLUTIONS - Xigent Solutions, LLC | 512 | — | 2 |
| AS393322US | CALERO - Calero MDSL | 512 | — | 1 |
| AS21516US | ECH-2 - Ephrata Community Hospital | 512 | — | 2 |
| AS36575US | WCVB-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS63269US | BOOTBARN - Boot Barn Inc. | 512 | — | 2 |
| AS396395US | ALLIANTINSURANCE - Alliant Insurance Services, Inc. | 512 | — | 2 |
| AS401459US | AS-UADA - Division of Agriculture of the University of Arkansas | 512 | — | 2 |
| AS19482US | GTLLP - Greenberg Traurig P.A | 512 | — | 2 |
| AS400411US | CHS - Sisters of Charity Hospital | 512 | — | 1 |
| AS40797US | EV-COG-01 - Easy Voice, LLC | 512 | — | 2 |
| AS21900US | LBPC - LAW BULLETIN PUBLISHING COMPANY | 512 | — | 2 |
| AS398705US | CENSYS-ARIN-02 - Censys, Inc. | 512 | 2 | 4 |
| AS401575US | JPPS-01 - Jeff Parrish, Sole Proprietorship | 512 | 256 | 3 |
| AS22043US | STERIS - STERIS Corporation | 512 | — | 2 |