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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,160 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| 256 |
| — |
| 1 |
| AS393708US | 4EOS-COM - 4EOS | 256 | — | 1 |
| AS53946US | HMNMH - Henry Mayo Newhall Memorial Hospital | 256 | — | 1 |
| AS401455US | CLEARLINE-COMMUNICATIONS-INC - Clearline Communications, Inc. | 256 | 4.1K | 2 |
| AS15232US | RODGERSBUILDERS - Rodgers Builders | 256 | — | 1 |
| AS11362US | VECTOR - Vector Data Systems LLC | 256 | — | 1 |
| AS63354US | STLZOO - Saint Louis Zoo | 256 | — | 1 |
| AS11945US | ASN-DEYOUNG - Corporation of the Fine Arts Museums | 256 | — | 1 |
| AS400359US | APETORO - ApeToro LLC | 256 | — | 1 |
| AS32846US | MDP - MDP | 256 | — | 1 |
| AS46190US | KRMC - Kingman Regional Medical Center | 256 | — | 1 |
| AS20389US | 20389 - OneAZ Credit Union | 256 | — | 1 |
| AS26552US | PROMCAP - IntraFi LLC | 256 | — | 1 |
| AS62863US | AS62863 - PRAIRIECARE LLC | 256 | — | 1 |
| AS22643US | WESTEDORG - WestEd | 256 | — | 1 |
| AS14208US | BUDCO-PSC - BUDCO | 256 | — | 1 |
| AS14681US | JAYCO - Jayco, Inc | 256 | — | 1 |
| AS19469US | JSL-ASN-01 - Jeanswear Services LLC | 256 | — | 1 |
| AS46607US | FORREST-T-JONES - Forrest T Jones & co, Inc. | 256 | — | 1 |
| AS401547US | HCDL-BUFFALO-DATA-CENTER - H5 Data Centers | 256 | 256 | 2 |
| AS46803US | GTCR-300NL-1 - GTCR Golder Rauner, LLC | 256 | — | 1 |
| AS399344US | DISNEY-TELEVISION-STUDIOS - Disney Worldwide Services, Inc. | 256 | — | 1 |
| AS397855US | ICSCLOUD-1 - Innovative Computer Solutions, Inc | 256 | — | 1 |
| AS401720US | UNREDACTED-AS - Unredacted Inc | 256 | 1 | 2 |
| AS395271US | TBOSA-SAT-HQ - The Bank of San Antonio | 256 | — | 1 |
| AS14503US | STOWERS-RESOURCE-MANAGEMENT - Stowers Resource Management Inc | 256 | — | 1 |
| AS53693US | RAA-NYC-NET - Ralph Appelbaum Associates, Inc. | 256 | — | 1 |
| AS46336US | GOODVILLE - Goodville Mutual Casualty Company | 256 | — | 1 |
| AS19427US | AS19427 - JBFCS | 256 | — | 1 |
| AS54059US | ITELLUS - Itelligence Inc. US | 256 | — | 1 |
| AS46226US | AS46226 - Acciona Energy North America Corporation | 256 | — | 1 |
| AS397138US | JUSTUS-AS - The Vegetable Group | 256 | 1 | 2 |
| AS32774US | NGK-SPARKPLUGS-USA - NGK Sparkplugs USA | 256 | — | 1 |
| AS27189US | MARTEN-TRANSPORT-LTD - Marten Transport, Ltd. | 256 | — | 1 |
| AS31813US | FREEDOMLINX-TECHNOLOGIES - FreedomLinx Technologies | 256 | — | 1 |
| AS29803US | FANATIC NODE LLC - FanaticNode LLC | 256 | — | 1 |
| AS396057US | CUD-9305 - Credit Union of Denver | 256 | — | 1 |
| AS394979US | ACELANET-1 - RiverStreet Networks | 256 | — | 1 |
| AS16590US | DGF-SERVICES - DGF Services, LLC | 256 | — | 1 |
| AS26117US | UNION-POWER-COOPERATIVE - Union Power | 256 | — | 1 |
| AS395027US | AGT-US-5800 - Ainsworth Game Technology, Inc. | 256 | — | 1 |
| AS25760US | MLNX-US - Mellanox Technologies | 256 | — | 1 |
| AS402035US | SGTLABS - Sergeant Laboratories, Inc | 256 | — | 1 |
| AS23295US | NSWL-3-23295 - Northern Skies Wireless LLC | 256 | — | 1 |
| AS399579US | CPASNET2 - Centerview Partners, LLC | 256 | — | 1 |
| AS63312US | BUTTERNUT-ASN - Community Financial System, Inc. | 256 | — | 1 |
| AS397614US | GTLAKES - Great Lakes Energy Cooperative | 256 | 26 | 12 |