NumValidate

How to Use This API

1. Validate a Phone Number (E.164 Format)

https://api.numvalidate.com/validate?access_key=YOUR_KEY&number=14158586273

Returns validation status, country, location, carrier, line type, and international/local formatted numbers.

2. Check with Country Code

https://api.numvalidate.com/validate?access_key=YOUR_KEY&number=442079460003&country_code=GB

Specify ISO country code to improve validation accuracy. Especially helpful for numbers with ambiguous country prefixes.

3. JavaScript — Signup Phone Validator

async function validatePhone(number, countryCode, apiKey) {
  const resp = await fetch(
    `https://api.numvalidate.com/validate` +
    `?access_key=${apiKey}&number=${encodeURIComponent(number)}` +
    (countryCode ? `&country_code=${countryCode}` : '')
  );
  const data = await resp.json();
  
  return {
    valid: data.valid,
    number: data.international_format || data.local_format,
    location: data.location,
    carrier: data.carrier,
    lineType: data.line_type,
    country: data.country_name
  };
}

async function checkNumber() {
  const result = await validatePhone('14158586273', 'US', 'YOUR_KEY');
  if (result.valid) {
    console.log(`${result.number} is valid`);
    console.log(`Type: ${result.lineType}, Carrier: ${result.carrier}`);
    console.log(`Location: ${result.location}, ${result.country}`);
  } else {
    console.log('Invalid phone number');
  }
}

checkNumber();

4. Python — Batch Phone Validation

import requests

def validate_phone(number, api_key, country_code=None):
    params = {
        'access_key': api_key,
        'number': number
    }
    if country_code:
        params['country_code'] = country_code
    
    resp = requests.get(
        'https://api.numvalidate.com/validate',
        params=params
    )
    return resp.json()

def check_phone_list():
    api_key = 'YOUR_KEY_HERE'
    numbers = [
        ('14158586273', 'US'),
        ('447911123456', 'GB'),
        ('61415012345', 'AU')
    ]
    
    for number, country in numbers:
        result = validate_phone(number, api_key, country)
        status = 'Valid' if result.get('valid') else 'Invalid'
        print(f"{result.get('international_format', number)}: {status}")

check_phone_list()