65,536 routable27 ASes
/16 subnet
66.151.0.0/16
Where this subnet is, who announces it, and what our databases hold in it. Below, every /24 inside it; open one for its addresses.
65,536
routable addresses
65,536
geolocated
7
countries
27
announcing ASes
58
announced prefixes
421
anonymous addresses
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- United States63,452 · 96.82%
- Germany768 · 1.17%
- The Netherlands768 · 1.17%
- Finland512 · 0.78%
- Canada32 · 0.05%
- Greece2 · 0.00%
- Turkey2 · 0.00%
Who announces it
Each /24 counted for the AS announcing most of it, as a share of the routable addresses.
- AS16509Amazon.com, Inc.11,264 · 17.19%
- AS12182Unitas Global7,424 · 11.33%
- AS14742Unitas Global7,168 · 10.94%
- AS19024Unitas Global5,632 · 8.59%
- AS13789Unitas Global4,864 · 7.42%
- AS10913Unitas Global3,584 · 5.47%
- AS12179Unitas Global3,584 · 5.47%
- AS13791Unitas Global3,584 · 5.47%
- AS10912Unitas Global3,072 · 4.69%
- AS12180Unitas Global2,048 · 3.13%
What the databases see
Addresses each address-keyed database holds in this block, as a share of its routable addresses. Counts overlap: one address can be in several.
Announced prefixes
Every prefix inside this block that BGP Route saw announced, with its origin and RPKI status.
| PREFIX | ORIGIN | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|---|
| 66.151.0.0/22 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 66.151.4.0/22 | AS19024Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.7.0/24 | AS14148Ex Libris (USA) Inc | United States | Not found | 17 | 2026-10-02 |
| 66.151.8.0/22 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 66.151.12.0/22 | AS19024Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.13.0/24 | AS22276BankUnited NA | United States | Not found | 17 | 2026-10-02 |
| 66.151.16.0/20 | AS19024Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.32.0/24 | AS57043HOSTKEY B.V. | The Netherlands | Valid | 18 | 2026-10-02 |
| 66.151.33.0/24 | AS57043HOSTKEY B.V. | The Netherlands | Valid | 18 | 2026-10-02 |
| 66.151.34.0/24 | AS57043HOSTKEY B.V. | Finland | Valid | 17 | 2026-10-02 |
| 66.151.35.0/24 | AS57043HOSTKEY B.V. | Finland | Valid | 17 | 2026-10-02 |
| 66.151.36.0/22 | AS12180Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.40.0/21 | AS12180Unitas Global | Germany | Not found | 17 | 2026-10-02 |
| 66.151.40.0/24 | AS57043HOSTKEY B.V. | Germany | Valid | 18 | 2026-10-02 |
| 66.151.41.0/24 | AS57043HOSTKEY B.V. | Germany | Valid | 18 | 2026-10-02 |
| 66.151.42.0/24 | AS57043HOSTKEY B.V. | The Netherlands | Valid | 18 | 2026-10-02 |
| 66.151.43.0/24 | AS57043HOSTKEY B.V. | Germany | Valid | 18 | 2026-10-02 |
| 66.151.44.0/22 | AS12180Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.48.0/24 | AS14378Xenon Ventures, LLC | United States | Valid | 18 | 2026-10-02 |
| 66.151.49.0/24 | AS14378Xenon Ventures, LLC | United States | Valid | 18 | 2026-10-02 |
| 66.151.50.0/24 | AS393406DigitalOcean, LLC | United States | Valid | 17 | 2026-10-02 |
| 66.151.51.0/24 | AS14378Xenon Ventures, LLC | United States | Valid | 17 | 2026-10-02 |
| 66.151.52.0/22 | AS10912Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.56.0/21 | AS10912Unitas Global | United States | Not found | 1 | 2026-10-29 |
| 66.151.64.0/20 | AS13791Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.66.0/24 | AS17144Microsoft Corporation | United States | Not found | 17 | 2026-10-02 |
| 66.151.67.0/24 | AS13791Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.73.0/24 | AS26093Houston Association of Realtors | United States | Not found | 17 | 2026-10-02 |
| 66.151.80.0/20 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 66.151.96.0/20 | AS10913Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.99.0/24 | AS10913Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.106.0/24 | AS22276BankUnited NA | United States | Not found | 17 | 2026-10-02 |
| 66.151.108.0/24 | AS40889Greystone IT, Inc. | United States | Not found | 17 | 2026-10-02 |
| 66.151.112.0/22 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 66.151.120.0/22 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 66.151.128.0/20 | AS12182Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.131.0/24 | AS393954CFN Services Inc. | United States | Not found | 17 | 2026-10-02 |
| 66.151.135.0/24 | AS55256Netskope Inc | United States | Not found | 17 | 2026-10-02 |
| 66.151.141.0/24 | AS40885E2open LLC | United States | Not found | 17 | 2026-10-02 |
| 66.151.144.0/20 | AS12182Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.160.0/22 | AS1828Unitas Global | United States | Not found | 1 | 2026-10-29 |
| 66.151.162.0/23 | AS1828Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.162.0/24 | AS26550Provident Funding | United States | Not found | 17 | 2026-10-02 |
| 66.151.164.0/22 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 66.151.176.0/20 | AS14742Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.188.0/22 | AS27382FirstLight Networks, LLC | United States | Not found | 18 | 2026-10-02 |
| 66.151.192.0/20 | AS13789Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.192.0/21 | AS13789Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.204.0/22 | AS13789Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.208.0/22 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 66.151.216.0/22 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 66.151.220.0/22 | AS13789Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.220.0/24 | AS396868SMBC Capital Markets, Inc. | United States | Not found | 17 | 2026-10-02 |
| 66.151.222.0/24 | AS32699Firstrade Securities Inc. | United States | Valid | 17 | 2026-10-02 |
| 66.151.224.0/20 | AS14742Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.240.0/20 | AS12179Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.241.0/24 | AS13789Unitas Global | United States | Not found | 17 | 2026-10-02 |
| 66.151.242.0/24 | AS63018Dedicated.com | United States | Not found | 17 | 2026-10-02 |
Every /24 inside it
00 · Evaluate
Test the real build first.
An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.
01 · License
Then license what you use.
Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.