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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
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 | 3,136 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.5M | 20,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 73.1M | 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC |
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.
| 68.2M |
| 345 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 66.4M | 1,107 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 47.9M | 3,573 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,926 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.2M | 4,508 |
| 254.7K |
| 131.1K |
| 25 |
| AS398823US | PEG-LA - PEG TECH INC | 249.9K | — | 89 |
| AS335US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 247.3K | 256 | 193 |
| AS6300US | CCI-TEXAS - Fidium | 243.7K | 65.5K | 68 |
| AS6039US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 242.9K | — | 68 |
| AS20021US | LNH-INC - Ntirety, Inc. | 241.7K | 131.1K | 26 |
| AS5371US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 241.7K | — | 240 |
| AS225US | VIRGINIA-AS - University of Virginia | 240.1K | — | 21 |
| AS396356US | LATITUDE-SH - Latitude.sh | 239.9K | 791.3K | 997 |
| AS15224US | OMNITURE - Adobe Inc. | 239.6K | 10 | 93 |
| AS73US | WASHINGTON-AS - University of Washington | 239.1K | 65.5K | 11 |
| AS138US | DNIC-AS-00138 - United States Department of Defense (DoD) | 236.3K | — | 18 |
| AS1602US | DNIC-AS-01602 - Headquarters, USAISC | 235K | 4 | 137 |
| AS1637US | DNIC-AS-01637 - Headquarters, USAISC | 233.7K | 1 | 123 |
| AS1600US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 233.2K | 7 | 175 |
| AS12119US | I3BROADBAND - ITV-3 | 231.9K | 65.5K | 85 |
| AS2920US | LACOE - Los Angeles County Office of Education | 231.7K | — | 226 |
| AS14051US | SUREWEST - Fidium | 231.2K | 135.2K | 110 |
| AS1998US | STATE-OF-MN - State of Minnesota | 230.9K | 65.5K | 11 |
| AS32982US | DOE-HQ - U.S. Department of Energy | 230.9K | 69.7K | 37 |
| AS6527US | MASSACHUSETTS - Commonwealth of Massachusetts | 230.4K | — | 13 |
| AS23473US | PAVLOVMEDIA - PAVLOV MEDIA INC | 230.1K | 81.4K | 792 |
| AS2906US | AS-SSI - Netflix Streaming Services Inc. | 229.9K | 193.1K | 448 |
| AS6192US | UCDAVIS-CORE - University of California, Davis | 229.9K | 65.6K | 9 |
| AS46261US | QUICKPACKET - QuickPacket, LLC | 229.6K | 65.6K | 294 |
| AS10405US | UPRR-ASN-01 - Union Pacific Railroad Company | 229.4K | — | 7 |
| AS22351US | INTELSAT-1 - INTELSAT GLOBAL SERVICE CORPORATION | 227.9K | 196.6K | 82 |
| AS35908US | VPLSNET - Krypt Technologies | 227.8K | 133.4K | 487 |
| AS11976US | FIDN - Fidelity Communication International Inc. | 225.8K | — | 409 |
| AS20278US | NEXEON - Nexeon Technologies, Inc. | 225.3K | 69.7K | 265 |
| AS20412US | CLARITY-TELECOM - Clarity Telecom LLC | 224.5K | 4.2K | 287 |
| AS3360US | DXC-AS3360 - DXC US Latin America Corporation | 223.2K | 105 | 452 |
| AS19551US | INCAPSULA - Incapsula Inc | 223K | 712 | 1,583 |
| AS1706US | UNIV-ARIZ - The University of Arizona | 222K | 65.5K | 66 |
| AS30404US | BLUESTREAMFIBER - Blue Stream | 221.4K | 1.2M | 26 |
| AS665US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | 219.6K | — | 41 |
| AS3464US | ASC-NET - Alabama Supercomputer Authority | 219.4K | 98.8K | 51 |
| AS1798US | OREGON - State of Oregon | 218.6K | 131.1K | 22 |
| AS2637US | GEORGIA-TECH - Georgia Institute of Technology | 218.1K | 65.5K | 19 |
| AS38US | UIUC - University of Illinois | 217.7K | 2 | 9 |
| AS13428US | SURFAIRWIRELESS-IN-02 - Surf Air Wireless, LLC | 216.8K | 65.5K | 72 |
| AS400619US | AROSS-AS - AROSSCLOUD INC. | 216.8K | — | 332 |
| AS70US | NLM-GW - National Library of Medicine | 216.8K | 2 | 66 |
| AS6966US | USDOS - U.S. Department of State | 212.2K | — | 13 |
| AS53755US | IOFLOOD - Input Output Flood LLC | 212K | 131.1K | 170 |
| AS2055US | LSU - Louisiana State University | 212K | 65.8K | 21 |
| AS22552US | ESITED - eSited Solutions | 212K | 65.5K | 38 |