We recommend all Adjust clients and partners using callbacks to whitelist the Adjust server IP addresses and reject all other requests. This helps ensure that a callback is legitimate. 

[Download this text file](https://assets.ctfassets.net/5s247im0esyq/7EsIgY50iY2A0QUdspgC3k/2397602d3424a6490b575246c7dd8c26/adjust-ip-addresses.txt) for our full range of Adjust server IPs, or check the table below to see which subnets our callbacks come from.  

<callout type="important">
If you have a hostname with an AAAA record, we send callbacks from our IPv6 range. If you have a whitelist, you must ALSO add the following subnet and full range.
</br></br>
<b>Subnet:</b> 2a0b:14c0::/32</br>  
<b>Start range:</b> 2a0b:14c0:0:0:0:0:0:0</br>  
<b>End range:</b> 2a0b:14c0:ffff:ffff:ffff:ffff:ffff:ffff
</callout>

<table>
  <thead>
    <tr>
      <th>Subnet</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>23.19.48.0/22</td>
    </tr>
    <tr>
      <td>173.208.60.0/23</td>
    </tr>
    <tr>
      <td>178.162.200.128/26</td>
    </tr>
    <tr>
      <td>178.162.216.64/26</td>
    </tr>
    <tr>
      <td>178.162.216.128/26</td>
    </tr>
    <tr>
      <td>178.162.216.192/26</td>
    </tr>
    <tr>
      <td>178.162.219.0/24</td>
    </tr>
    <tr>
      <td>185.151.204.0/22</td>
    </tr>
    <tr>
      <td>185.230.36.0/22</td>
    </tr>
    <tr>
      <td>185.255.24.0/22</td>
    </tr>
    <tr>
      <td>199.101.182.0/23</td>
    </tr>
  </tbody>
</table> 



Adjust clients and partners using callbacks can whitelist Adjust server IPs and reject all other requests. This helps ensure that a callback is legitimate. 

Subnet
23.19.48.0/22
173.208.60.0/23
178.162.200.128/26
178.162.216.64/26
178.162.216.128/26
178.162.216.192/26
178.162.219.0/24
185.151.204.0/22
185.230.36.0/22
185.255.24.0/22
199.101.182.0/23