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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,999 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| 4.4K |
| — |
| 2 |
| AS11086US | PITNEYBOWES-AS-1 - Pitney Bowes Incorporated | 4.4K | — | 15 |
| AS40844US | WINN-DIXIE - Winn-Dixie Stores, Inc. | 4.4K | — | 17 |
| AS394396US | LISTRAK-AS1 - Listrak | 4.4K | — | 2 |
| AS54209US | MONON-TEL - Monon Telephone Company, Inc. | 4.4K | 65.5K | 5 |
| AS21668US | ENET - ElbertonNet | 4.4K | — | 8 |
| AS30417US | BTIG-LLC - BTIG LLC | 4.4K | — | 14 |
| AS30673US | NTHRIVE-ASN01 - Finthrive, Inc. | 4.4K | — | 10 |
| AS396106US | SMARTAIRA-DP - Consolidated Smart Systems LLC | 4.4K | 2K | 20 |
| AS17348US | FULLS-2-AS - FULL SPECTRUM COMMUNICATIONS, INC. | 4.4K | — | 10 |
| AS36231US | TEMPEST-HOSTING - Tempest Hosting, LLC | 4.4K | 65.6K | 44 |
| AS18555US | THE-ART-INST - The Art Institute of Chicago | 4.4K | — | 2 |
| AS14536US | ASN-SOL - sol.net Network Services | 4.4K | 17 | 4 |
| AS17137US | HAWKEYE-SYNIVERSE - Hawkeye Switching LLC. | 4.4K | — | 7 |
| AS33178US | CSINET - Cable Services, Inc. | 4.4K | — | 3 |
| AS13798US | LOREAL-USA - L'Oreal USA | 4.4K | — | 7 |
| AS46997US | NATOLAB - Black Mesa Corporation | 4.4K | 1.2K | 38 |
| AS21833US | TRINITY-HEALTH - Trinity Health Corporation | 4.4K | — | 3 |
| AS23081US | VENTURETECHNOLOGIES - CONVERGEONE HOLDINGS, INC. | 4.4K | — | 2 |
| AS19600US | NCH-AS - Nationwide Children's Hospital | 4.4K | — | 2 |
| AS55032US | JAXNET-BH-01 - The Jackson Laboratory | 4.4K | — | 17 |
| AS63025US | NOHAVPS-LLC - NOHAVPS LLC | 4.4K | 259 | 21 |
| AS25958US | MC-INT - Marshfield Clinic Inc. | 4.4K | — | 10 |
| AS32331US | FIVEPOINT NETWORKS - FivePoint Networks, LLC | 4.4K | — | 5 |
| AS399597US | BOLD-WJC - Apogee Telecom Inc. | 4.4K | 1 | 3 |
| AS33359US | COWEN-AS-3 - COWEN EXECUTION SERVICES LLC. | 4.4K | — | 14 |
| AS26958US | ONCOR-1 - Oncor Electric Delivery Company, LLC | 4.4K | — | 8 |
| AS40606US | QTS-OVP - Quality Technology Services, LLC | 4.4K | 65.5K | 3 |
| AS396032US | GIGABITNOW-NORCAL - GigabitNow Norcal, LLC | 4.4K | 1 | 10 |
| AS26405US | HDCS - HORIZON DATA SOLUTIONS, LLC | 4.4K | — | 13 |
| AS11512US | PDM - Parsec Data Management Inc. | 4.4K | 4.1K | 12 |
| AS15350US | ALGN-ASN-001 - Algona Municipal Utilities | 4.4K | — | 2 |
| AS396955US | INTERNET2-BLEND - Internet2 | 4.4K | 270 | 31 |
| AS22077US | RENAISSANCE-TECH - Renaissance Technologies Corp. | 4.4K | — | 11 |
| AS394468US | WAVE-WIRELESS-LLC - Wave Wireless LLC | 4.4K | — | 9 |
| AS55274US | CAESARS-ENTERTAINMENT - Caesars Entertainment Operating Company, Inc. | 4.4K | — | 2 |
| AS400066US | FRIB-01 - Michigan State University | 4.4K | 2 | 4 |
| AS1406US | MOTOROLA-MOBILITY - Motorola Inc | 4.4K | — | 11 |
| AS397446US | MIDWESTFIBERNETWORK-ASN1 - Midwest Fiber Network, LLC | 4.4K | 65.8K | 12 |
| AS5982US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 4.4K | — | 2 |
| AS40339US | JUMP-TRADING-LLC - Jump Trading LLC | 4.4K | — | 17 |
| AS46479US | PREFERRED-NETWORKS - Pyramid.Net | 4.4K | — | 5 |
| AS20014US | WRCTC-NET-1 - West River Cooperative Telephone Company | 4.4K | — | 7 |
| AS33226US | SUMMAHEALTH-ASN - Summa Health System | 4.4K | — | 6 |
| AS33650US | COMCAST-33650 - Comcast Cable Communications, LLC | 4.4K | 109 | 121 |
| AS21795US | MSMC-ASN - Mount Saint Mary College | 4.4K | — | 2 |
| AS399938US | BHE-TRANSIT - Berkshire Hathaway Energy Company | 4.4K | — | 7 |