> ## Documentation Index
> Fetch the complete documentation index at: https://docs.permutive.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Targeting Users by ISP

> How to create cohorts that target users based on Internet Service Provider

## Overview

This guide explains how to create Custom Cohorts that target users based on their Internet Service Provider (ISP). ISP information is automatically collected from users' IP addresses on every Pageview using Maxmind's geo-location database.

<Info>
  **Prerequisites:**

  * Permutive Web SDK deployed (ISP data is collected automatically)
  * Access to the Permutive Dashboard with cohort creation permissions
</Info>

## Steps

<Steps>
  <Step title="Navigate to Custom Cohorts">
    In the Permutive Dashboard, go to *Custom Cohorts* and click *+ Add Cohort*.
  </Step>

  <Step title="Select Pageview event">
    In the Cohort Builder, select **Pageview** as your event.
  </Step>

  <Step title="Add ISP property filter">
    Add a property filter for `isp_info.isp`.
  </Step>

  <Step title="Set ISP value">
    Set the value to the ISP name you want to target (e.g., "BT", "Comcast", "AT\&T").
  </Step>

  <Step title="Configure additional criteria">
    Optionally add recency, frequency, or other conditions.
  </Step>

  <Step title="Save">
    Calculate the audience size and save the cohort.
  </Step>
</Steps>

<img alt="Targeting users by ISP" classname="block" src="https://mintcdn.com/permutive/oi2rduLeCSwC7cBO/images/products/signals/cohorts/custom/targeting-by-isp.png?fit=max&auto=format&n=oi2rduLeCSwC7cBO&q=85&s=0f18a99b754bbef5041d00d4b237b294" width="1358" height="506" data-path="images/products/signals/cohorts/custom/targeting-by-isp.png" />

## Platform Support

<Warning>
  **Mobile SDK limitation:** iOS and Android SDKs do not collect ISP properties automatically. These properties must be manually configured in your SDK implementation.

  See the SDK documentation for [iOS](/sdks/mobile/ios) and [Android](/sdks/mobile/android/overview) for instructions on how to enable ISP data collection.
</Warning>

| Platform | ISP Data Available            |
| :------- | :---------------------------- |
| Web      | Automatic                     |
| iOS      | Manual configuration required |
| Android  | Manual configuration required |
| CTV      | Manual configuration required |

## Next Steps

<CardGroup cols={2}>
  <Card title="Create Basic Cohorts" icon="users" href="/guides/signals/cohorts/custom/creating-custom-cohorts">
    Learn cohort creation fundamentals
  </Card>

  <Card title="Back to Custom Cohorts" icon="arrow-left" href="/products/signals/cohorts/custom">
    Return to product overview
  </Card>
</CardGroup>