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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| 4.1K |
| — |
| 16 |
| AS54775US | ALLY-FINANCIAL - Ally Financial Inc. | 4.1K | — | 6 |
| AS131199US | NEXEON-AS-AP - Nexeon Technologies, Inc. | 4.1K | 65.5K | 11 |
| AS401834US | HWSC-AS - Hobart and William Smith Colleges | 4.1K | — | 1 |
| AS30177US | FIBER-SOUTH-01 - Point Broadband Fiber Holding, LLC | 4.1K | 65.5K | 4 |
| AS393605US | COGNET - Brazos Valley Council of Governments | 4.1K | — | 1 |
| AS46215US | TERRANOVANET-ASN1 - TerraNovaNet | 4.1K | — | 1 |
| AS395368US | NTT-GLOBAL-DATA-CENTERS-AMERICA-INC - NTT Global Data Centers Americas, INC. | 4.1K | — | 1 |
| AS22251US | REMC - Regional Educational Media Center 1 (REMC1) | 4.1K | — | 10 |
| AS14120US | ONEZERO-AS - oneZero Financial Systems, LLC | 4.1K | — | 8 |
| AS32273US | LIRR - Long Island Rail Road | 4.1K | — | 1 |
| AS10818US | FULLNETOK - Fullnet Communications | 4.1K | — | 1 |
| AS30049US | METRO - Metropolitan Transit Authority of Harris County | 4.1K | — | 16 |
| AS47272US | HYEHOST - HYEHOST LLC | 4.1K | 39.8K | 57 |
| AS395945US | HBPW - Holland Board of Public Works | 4.1K | 65.5K | 5 |
| AS400018US | CLOUD - Africa cloud limited | 4.1K | — | 2 |
| AS11134US | WEBFIRE-MILTEL - WebFire Internet Services | 4.1K | — | 1 |
| AS63335US | CITIZENS-BANK-AS - Citizens Bank, National Association | 4.1K | — | 6 |
| AS25809US | BOSE-CORPORATION-US - Bose Corporation | 4.1K | — | 9 |
| AS20167US | BLAST-IU17 - BLaST Intermediate Unit #17 | 4.1K | — | 1 |
| AS36316US | SHOREHAMTEL - GoNetSpeed | 4.1K | 4.1K | 4 |
| AS14317US | ACCNETWORKS - Advanced Computer Connections, Inc. | 4.1K | — | 1 |
| AS40198US | MATINETWORKS - MATI | 4.1K | — | 6 |
| AS398440US | AS-CITYOFVISALIA - CITY OF VISALIA | 4.1K | — | 1 |
| AS16490US | MTB - Manufacturers and Traders Trust Company | 4.1K | — | 6 |
| AS11863US | PLU - Pacific Lutheran University | 4.1K | — | 1 |
| AS397044US | MY-TEC-SA - My Tec Sa | 4.1K | — | 7 |
| AS31811US | CENTRACOM-MT - Manti Tele Communication Company | 4.1K | 65.5K | 16 |
| AS10973US | KALAMA - Scatter Creek InfoNet, Inc. | 4.1K | 69.6K | 8 |
| AS14245US | SEGAOADC - Sega of America, Inc. | 4.1K | — | 1 |
| AS36396US | SCHOOLCRAFTCOLLEGE - Schoolcraft College | 4.1K | — | 1 |
| AS25955US | PROSKAUER-1 - Proskauer Rose LLP | 4.1K | — | 16 |
| AS53477US | NO - Hilti Incorporated | 4.1K | — | 2 |
| AS22138US | FARM-MARKET - Farm to Market Broadband, LP | 4.1K | — | 1 |
| AS402960US | MACWEB - MACWEB | 4.1K | 65.5K | 2 |
| AS32883US | LOGONIX - Logonix Corporation | 4.1K | — | 1 |
| AS55260US | POLK-SCHOOL-DISTRICT - Polk School District | 4.1K | — | 16 |
| AS15055US | YOURCOLO-ASN-1 - YourColo LLC | 4.1K | — | 1 |
| AS26327US | HIGHLANDS-CABLE - Highlands Cable Group | 4.1K | — | 4 |
| AS15144US | XYMMETRIX-XYMMETRIX-LLC - Xymmetrix, LLC | 4.1K | — | 1 |
| AS40270US | EPISD-ASN-1 - The El Paso Independent School District (EPISD) | 4.1K | — | 1 |
| AS14382US | ESC13 - Education Service Center | 4.1K | 1 | 9 |
| AS394826US | OREGONTECH - Oregon Tech | 4.1K | — | 1 |
| AS3140US | TJHSST-AS - The Thomas Jefferson High School for Science and Tech. | 4.1K | 1 | 2 |
| AS53513US | SKSRT - SPRUCE KNOB SENECA ROCKS TELEPHONE, INC. | 4.1K | — | 2 |
| AS55043US | MARCO-TECHNOLOGIES-DC - Marco Technologies LLC | 4.1K | — | 15 |
| AS13924US | AIS-AS - Allied Internet Services | 4.1K | — | 16 |