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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. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,220 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 | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| — |
| 1 |
| AS11965US | COA-NET - City of Aspen | 256 | — | 1 |
| AS31904US | NCWCD-80513 - Northern Water | 256 | — | 1 |
| AS15312US | PWGL - Prime Wholesale Goods LLC | 256 | — | 1 |
| AS400355US | STRCTRPNT-INDY-01 - American Structurepoint, INC | 256 | — | 1 |
| AS398917US | VIBRANT-CREDIT-UNION-01 - Vibrant Credit Union | 256 | — | 1 |
| AS19909US | DAYLIGHT - Daylight Transport, LLC | 256 | — | 1 |
| AS23050US | MORGAN-ASN-EV-1 - Morgan Stanley | 256 | — | 1 |
| AS10920US | JOHN-PAUL-CATHOLIC-UNIVERSITY - John Paul the Great Catholic University | 256 | — | 1 |
| AS54073US | DN-OH2 - Diebold Nixdorf, Incorporated | 256 | — | 1 |
| AS46743US | PHILANDER-SMITH-UNIVERSITY-AS - Philander Smith University | 256 | — | 1 |
| AS397426US | WILSON-HEALTH - Wilson Health | 256 | — | 1 |
| AS2149US | COGENT-2149 - Cogent Communications, LLC | 256 | 1 | 2 |
| AS16899US | SNDCOFFEE-PUBLIC-IPBLOCK - S&D Coffee, Inc. | 256 | — | 1 |
| AS17101US | POLA-AS - PORT OF LOS ANGELES | 256 | — | 1 |
| AS25747US | EPICSYS-DR - Epic Systems Corporation | 256 | — | 1 |
| AS16571US | KDMC1 - Kings Daughters Medical Center | 256 | — | 1 |
| AS402356US | AS-GRIDPRISE-ANY - Gridprise | 256 | 1 | 2 |
| AS396157US | TFS-US-WEST-SV5 - Fisher Scientific | 256 | — | 1 |
| AS3635US | BEA - U.S. Department of Commerce, Bureau of Economic Analysis | 256 | 16 | 2 |
| AS393680US | QUADA01 - Quadax Inc. | 256 | — | 1 |
| AS399209US | ACUMED-02 - Acumed, LLC | 256 | 1 | 2 |
| AS399328US | ALLCOM-TELECOM-AIRCOM - Allcom Telecom, Inc. | 256 | — | 1 |
| AS401457US | MINIUM-NET-64 - MINIUM NET LLC | 256 | — | 1 |
| AS46642US | TT-US-1 - TekTera | 256 | 1 | 2 |
| AS399900US | ARDHAM - ARDHAM TECHNOLOGIES, INC. | 256 | — | 1 |
| AS17092US | HHS-IPASN - Hendrick Medical Center | 256 | — | 1 |
| AS32175US | RTD-DENVER - REGIONAL TRANSPORTATION DISTRICT | 256 | — | 1 |
| AS36501US | DELORME-PUBLISHING - GARMIN INTERNATIONAL INC. | 256 | — | 1 |
| AS22127US | HONDAAIRCRAFT - Honda Aircraft Company LLC | 256 | — | 1 |
| AS399504US | STREAMING-SYSTEMS-LLC - Streaming Systems, LLC | 256 | 4.1K | 2 |
| AS36415US | HNSF222 - Hotel Nikko of San Francisco, Inc. | 256 | — | 1 |
| AS397819US | CPI - Consumers Power, Inc. | 256 | — | 1 |
| AS400680US | EVERFOX - EVERFOX Holdings LLC | 256 | — | 1 |
| AS401433US | TOWER-33-AS-01 - Tower 33 Inc. | 256 | — | 1 |
| AS401829US | PIPEWORKS-01 - Pipeworks Inc. | 256 | 1 | 2 |
| AS394457US | OMNIMODE - OMNI-MODE TRADE LLC | 256 | 65.5K | 2 |
| AS20439US | INTUIT-ITH - Intuit Inc. | 256 | — | 1 |
| AS400290US | NATURAL-STATE - Natural State Wireless, LLC | 256 | — | 1 |
| AS22934US | SLIC-NETWORK-AS - Starmount Insurance Agency, Inc. | 256 | — | 1 |
| AS25857US | ACS-ASN - American Chemical Society | 256 | — | 1 |
| AS395675US | ECHO-GROUP-INC - Echo Group Inc | 256 | — | 1 |
| AS401963US | VVHOSP - VALLEY VIEW HOSPITAL ASSOCIATION | 256 | — | 1 |
| AS27394US | NHDSC-ORG - Northern Hospital District of Surry County | 256 | — | 1 |
| AS398408US | RIVHS-01 - RIVERSIDE HEALTH SYSTEM | 256 | — | 1 |
| AS19575US | ISPNET - ISPNET Communications LLC | 256 | 65.5K | 2 |
| AS63282US | YVFWC - Yakima Valley Farm Workers Clinic | 256 | — | 1 |