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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. | 218M | 24,543 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,304 |
| 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.
32,174 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,884 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,999 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,345 |
| 256 |
| — |
| 1 |
| AS23295US | NSWL-3-23295 - Northern Skies Wireless LLC | 256 | — | 1 |
| AS33644US | OSUFCUASN - Oregon State Credit Union | 256 | — | 1 |
| AS11436US | BCES-BCEM-01 - Benton County Emergency Management | 256 | — | 1 |
| AS33572US | ELECTRONIC-ARTS-LOS-ANGELES - Electronic Arts, Inc. | 256 | — | 1 |
| AS29824US | APPFO-SB - Appfolio, Inc. | 256 | — | 1 |
| AS22643US | WESTEDORG - WestEd | 256 | — | 1 |
| AS14601US | AAL-ASN - Anchorage Advisors, LLC | 256 | — | 1 |
| AS401928US | DFTC - DFTC | 256 | 256 | 2 |
| AS32599US | DOTERRA-NET - doTERRA International, LLC | 256 | — | 1 |
| AS402065US | QVQNETWORK - QVQNETWORK LLC | 256 | 1 | 2 |
| AS40554US | NUSSTRUCK-1 - Nuss Truck Group Inc. | 256 | — | 1 |
| AS21791US | HUNTSVILLE-MEMORIAL-HOSPITAL - HUNTSVILLE MEMORIAL HOSPITAL | 256 | — | 1 |
| AS395473US | TWCPT - IBM | 256 | — | 1 |
| AS396188US | UMOJO - Umojo, Inc. | 256 | — | 1 |
| AS40587US | IMAGESTREAM-1 - ImageStream Internet Solutions, Inc. | 256 | — | 1 |
| AS401511US | MULLINAX-AUTOMOTIVE - Mullinax Ford | 256 | 2 | 3 |
| AS400508US | JS-ASN-01 - The Juilliard School | 256 | — | 1 |
| AS397334US | DOTFOODS - Dot Foods, Inc. | 256 | — | 1 |
| AS400609US | LOOPHOLE-LABS - Loophole Labs, Inc. | 256 | — | 1 |
| AS400121US | CFBTEL - CFBTEL | 256 | — | 1 |
| AS393389US | ECLIPSE COMMUNICATIONS - Eclipse Communications | 256 | — | 1 |
| AS401127US | TFBCI-WACO - Texas Farm Bureau Casualty Insurance Company | 256 | — | 1 |
| AS26031US | MONMOUTH-COUNTY - Monmouth County | 256 | — | 1 |
| AS398439US | GUEST-CHOICE-TV - GUEST CHOICE TV LLC | 256 | 65.5K | 2 |
| AS11945US | ASN-DEYOUNG - Corporation of the Fine Arts Museums | 256 | — | 1 |
| AS393246US | AS-AFILIAS-IAD1 - Afilias, Inc. | 256 | 1 | 2 |
| AS401202US | SPL-HQ - Sound, Production & Lighting LLC | 256 | 1 | 2 |
| AS394768US | LTS-IL01 - Links Technology Solutions, Inc. | 256 | — | 1 |
| AS62866US | OHIO-IX-OPS - OHIO IX | 256 | 4.1K | 2 |
| AS400490US | TWO-BIT-HACKS - Two Bit Hacks, LLC | 256 | 1 | 2 |
| AS40774US | BSM-9-ASN - Bay State Milling Company | 256 | — | 1 |
| AS54946US | MH105-METRO-HEALTH-HOSPITAL - Metro Health | 256 | — | 1 |
| AS399207US | AM-AN-ASN-01 - ACCU-MOLD LLC | 256 | — | 1 |
| AS394315US | WYNN-EVERETT-MASS - Wynn Resorts Limited | 256 | — | 1 |
| AS214127US | JINK-HOSTING Jink Hosting LLC | 256 | — | 1 |
| AS25760US | MLNX-US - Mellanox Technologies | 256 | — | 1 |
| AS400386US | APOG-MHMC - Apogee Telecom Inc. | 256 | — | 1 |
| AS398314US | ELDORADO-205 - Mphasis Eldorado | 256 | — | 1 |
| AS400407US | TRONOX-LLC - TRONOX LLC | 256 | — | 1 |
| AS399999US | LYON-BV-01 - LYON COLLEGE | 256 | — | 1 |
| AS54991US | CADENCE-BANK-BHM - Cadence Bank, N.A. | 256 | — | 1 |
| AS402455US | VENTURE-DEVELOPMENT-LLC - Venture | 256 | 3 | 4 |
| AS395786US | NOMADGCS-ASN - Nomad Global Communications Solutions, Inc. | 256 | — | 1 |
| AS398275US | YCFLD - Yavapai County Free Library District | 256 | — | 1 |
| AS210015US | INTERFACEALL Interface Services LLC | 256 | 1 | 2 |
| AS397176US | NBMC - New Bridge Medical Center | 256 | — | 1 |