# Validate UK phone numbers

**Use case:** 

Check UK phone numbers in bulk: valid or not, E.164 format, national format, mobile or landline type. Offline, no calls or SMS. Prefilled with UK mobile and landline examples.

## Input

```json
{
  "numbers": [
    "020 7946 0958",
    "07911 123456",
    "+44 161 496 0000",
    "0800 001 066",
    "12345"
  ],
  "csvHeader": "auto",
  "defaultCountry": "GB",
  "dedupe": true
}
```

## Output

```json
{
  "original": {
    "label": "Original",
    "format": "string"
  },
  "valid": {
    "label": "Valid",
    "format": "boolean"
  },
  "e164": {
    "label": "E.164",
    "format": "string"
  },
  "international": {
    "label": "International",
    "format": "string"
  },
  "national": {
    "label": "National",
    "format": "string"
  },
  "regionCode": {
    "label": "Region",
    "format": "string"
  },
  "numberType": {
    "label": "Type",
    "format": "string"
  },
  "carrier": {
    "label": "Carrier",
    "format": "string"
  },
  "timezones": {
    "label": "Timezones",
    "format": "array"
  },
  "duplicateOf": {
    "label": "Duplicate of",
    "format": "string"
  }
}
```

## How it works

### 1. Sign up on Apify or log in

The Bulk Phone Number Validator & Formatter (Offline) Actor is ready to run with the inputs already set for "Validate UK phone numbers". [Sign up or log in](https://console.apify.com/create-task-from-example/TzfBHzrOf7arLxQQh) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Validate UK phone numbers" task

The Bulk Phone Number Validator & Formatter (Offline) Actor will start running based on the input automatically. You can also change all the input fields, like phone numbers to validate, CSV has header row, and more, to match your specific use case.

### 3. Receive the "Validate UK phone numbers" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as original, valid, e.164, and more.

### 4. Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also [run the "Validate UK phone numbers" task via API](https://apify.com/divinxxii/phone-validator.md).

## About this Actor

This example demonstrates how to use [Bulk Phone Number Validator & Formatter (Offline)](https://apify.com/divinxxii/phone-validator.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/divinxxii/phone-validator.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/divinxxii/phone-validator.md

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).