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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,189 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| 2.3K |
| 532.7K |
| 15 |
| AS46456US | TELESPACE-ASN - Telespace, LLC | 2.3K | — | 5 |
| AS398020US | HICOUNTRYNET - HICOUNTRYNET, LLC | 2.3K | 32 | 8 |
| AS394572US | TYLERTECH-NIC1 - Tyler Technologies, Inc. | 2.3K | — | 8 |
| AS401905US | MOONLITE - Moonlite AI Inc. | 2.3K | — | 7 |
| AS63066US | 7HOOPNETWORK - 7Hoop Network Telecom, LLC | 2.3K | 6.4K | 9 |
| AS26127US | FRONTIERLABRESEARCH - Frontier Communications of America, Inc. | 2.3K | 1 | 9 |
| AS396004US | INTERCEPT - TIGER COMPUTER CONSULTING, LLC | 2.3K | — | 9 |
| AS55248US | WHOA-NETWORKS - Whoa Networks Inc | 2.3K | — | 9 |
| AS19720US | CABLEVISION-CORP - Cablevision Systems Corp. | 2.3K | — | 9 |
| AS397019US | ROCKETCONNECT - Rocket Connect LLC | 2.3K | 81.9K | 10 |
| AS12110US | AS-INTER - Internex Inc. | 2.3K | 69.6K | 24 |
| AS13607US | INTUITIVE-ENG - Intuitive Surgical Operations, Inc. | 2.3K | 3 | 12 |
| AS396936US | HTH2 - HTH | 2.3K | — | 9 |
| AS62560US | HOSTED-AMERICA - Hosted America | 2.3K | — | 8 |
| AS6950US | LAMBDA - Lambda Telecom | 2.3K | — | 7 |
| AS14569US | INTELLIPOP - Intellipop, LLC | 2.3K | — | 9 |
| AS18675US | VS-BYNCTR - Virtual Systems | 2.3K | — | 6 |
| AS14721US | LAYER-7-NETWORKS - Layer 7 Consulting, LLC | 2.3K | — | 3 |
| AS19580US | ART-LLC - A.R.T. Advisors, LLC | 2.3K | — | 9 |
| AS63129US | AIRRABBIT-NETWORK - AirRabbit, LLC | 2.3K | 127K | 40 |
| AS27018US | WAGEWORKS - WAGEWORKS, Inc. | 2.3K | — | 2 |
| AS399033US | DUCOR-01 - VARCOMM BROADBAND, INC. | 2.3K | 1 | 6 |
| AS14242US | AS-NETBLK-COC - City of Chandler | 2.3K | — | 2 |
| AS33127US | ISCORP-MEQUON - Integrated Systems Corp | 2.3K | 512 | 11 |
| AS28852US | AERIS-AS Aeris Communications, INC. | 2.3K | 8.2K | 16 |
| AS15284US | DSC - Digital Service Consultants, Inc. | 2.3K | — | 2 |
| AS54111US | US-SIGNAL-OR01 - US Signal Company, L.L.C. | 2.3K | 256 | 3 |
| AS395963US | WCAN - WCAN | 2.3K | — | 8 |
| AS46617US | WEBMD-IDC2-AS - WebMD, LLC | 2.3K | — | 2 |
| AS394144US | LTYCONNECT - LTY CONNECT | 2.3K | 131.1K | 9 |
| AS397151US | DC2-AS - Trans Union, LLC | 2.3K | — | 5 |
| AS23436US | LDC-MTG - Logista | 2.3K | — | 6 |
| AS33455US | NORTHWESTERN-COLLEGE-STPAUL-MN - University of Northwestern | 2.3K | — | 5 |
| AS53361US | PACKET-FORENSICS - Packet Forensics | 2.3K | — | 4 |
| AS16910US | FARM-CREDIT - Farm Credit Financial Partners, Inc. | 2.3K | — | 9 |
| AS399250US | NAMEHERO-KCDC - Name Hero, LLC | 2.3K | — | 9 |
| AS14418US | DTCC-AS1 - Depository Trust & Clearing Corporation | 2.3K | — | 9 |
| AS40088US | WESTLAKE-CHEMICAL-CORPORATION - Westlake Chemical Corporation | 2.3K | — | 6 |
| AS40526US | THE-GAP-INC - Gap, Inc. Direct | 2.3K | — | 6 |
| AS399804US | HOSTODO - Hostodo | 2.3K | 5 | 14 |
| AS36706US | ATOS-CHARLOTTE - Atos IT Solutions and Services Inc | 2.3K | — | 5 |
| AS397672US | AS-WYOMINGWIRELESS - Wyoming Wireless Internet | 2.3K | 4.1K | 9 |
| AS36521US | HOP-ASN-1 - H.O.P. Communications DBA airHOP | 2.3K | — | 3 |
| AS13617US | SYNTAX-NC - Syntax Systems USA, LP | 2.3K | — | 6 |
| AS395415US | QT-SEC - Quiktrip Corporation | 2.3K | — | 7 |
| AS5182US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 2.3K | — | 9 |