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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,171 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,368 |
| 512 |
| — |
| 2 |
| AS53542US | MESNET - MERCHANT ESOLUTIONS, INC. | 512 | — | 2 |
| AS199518US | GSHAPIRO-AS Gregory Shapiro | 512 | 31 | 33 |
| AS55161US | DIGI-201302 - Digipress Inc | 512 | — | 2 |
| AS209179US | AFRICLOUD AfriCloud LLC | 512 | 3 | 5 |
| AS197684US | ASHOSTUA DeRoy LLC. | 512 | — | 1 |
| AS400586US | RDM-TECH - rdm.tech | 512 | 256 | 3 |
| AS22554US | PEWNETWORK - The Pew Charitable Trusts | 512 | — | 2 |
| AS203990US | acc_eu Accertify LLC | 512 | — | 2 |
| AS13527US | GOOFL-TESTBED - Gooflare LLC | 512 | 216 | 203 |
| AS400101US | AS-RINGFREE - Ringfree Communications, Inc | 512 | — | 2 |
| AS27270US | SFM - SFM Mutual Insurance Company | 512 | — | 2 |
| AS26761US | CMAL-ECOM - Designs Apparel, Inc. | 512 | — | 2 |
| AS395772US | AHC-AS - Augusta Health Care, Inc | 512 | — | 2 |
| AS2636US | LOUISVILLE-MSD-ASN-01 - LOUISVILLE AND JEFFERSON COUNTY METROPOLITAN SEWER DISTRICT | 512 | — | 1 |
| AS2633US | NAS1-AS - National Academy of Sciences | 512 | — | 2 |
| AS927US | QUINTILLION - Quintillion Subsea Operations, LLC | 512 | — | 2 |
| AS26907US | JFG-RACINE-ASN - Johnson Financial Group, Inc. | 512 | — | 2 |
| AS395617US | PLYMOUTH - Plymouth Poultry Company | 512 | — | 2 |
| AS26454US | HENRYSCHEIN - Henry Schein Inc | 512 | — | 2 |
| AS402399US | IRON - IRONHOSTING | 512 | — | 2 |
| AS15319US | CSLNA-NJ-ASN - COSCO Shipping Lines (North America) Inc. | 512 | — | 2 |
| AS32269US | CITY-OF-IDAHO-FALLS - City of Idaho Falls | 512 | — | 2 |
| AS397308US | EAB-ASN-EASTMAN-CHEMICAL - Eastman Chemical Company | 512 | — | 2 |
| AS54691US | FCSA-AS - Farm Credit Services of America | 512 | — | 2 |
| AS23397US | CME-VEN-AS23397 - Chicago Board of Trade | 512 | — | 2 |
| AS54798US | ODDBYTES - Oddbytes LLC | 512 | — | 2 |
| AS55078US | DIVING-BELL - DIVING BELL DEV LLC | 512 | 4.1K | 3 |
| AS30593US | VORNADO-PUBLIC - Vornado Realty Trust | 512 | — | 2 |
| AS21631US | CHFA-COLORADO - Colorado Housing and Finance Authority | 512 | — | 2 |
| AS33573US | BAQMD-SF - Bay Area Air Quality Management District | 512 | — | 2 |
| AS399392US | FIREDOG-AS399392 - FIRE DOG SSC, LLC | 512 | 4.1K | 3 |
| AS22304US | CITY-OF-MARIETTA-GEORGIA - City of Marietta | 512 | — | 2 |
| AS393488US | CVR-ENERGY - CVR Services, LLC | 512 | — | 1 |
| AS23447US | NETTECH-ASN01 - NetTech, LLC | 512 | — | 2 |
| AS63328US | SWEETFW-NET - Sweetwater Sound Inc | 512 | — | 1 |
| AS55057US | CHI-ILAG - Office of the Illinois Attorney General | 512 | — | 2 |
| AS393512US | AGC-NW - AGC Networks Inc | 512 | — | 2 |
| AS46259US | CTDN-AS - Donor Network West | 512 | — | 2 |
| AS402411US | AL-3144-402411-01 - Aeryte | 512 | 256 | 2 |
| AS393929US | SIMPATICO - Simpatico Systems | 512 | — | 2 |
| AS30667US | WHEELERSLC - WHEELER MACHINERY CO. | 512 | — | 2 |
| AS21822US | JDBS - JD Byrider Systems Inc | 512 | — | 2 |
| AS22417US | NYCM-FIRE-CO - New York Central Mutual Fire Insurance Company | 512 | — | 2 |
| AS22179US | LTS-CO01 - Links Technology Solutions, Inc. | 512 | — | 2 |
| AS54244US | ICS - ICSolutions | 512 | — | 2 |
| AS14012US | PNMAC1 - Private National Mortgage Acceptance Company LLC | 512 | — | 2 |