Master Phone Carrier Detection

Form-level Validation (Recommended)

// Real-time validation with ip-info.app API
async function validatePhone(phone) {
  const response = await fetch(`https://api.ip-info.app/v1-get-phone-details?phone=${phone}`, {
    headers: {
      'accept': 'application/json',
      'x-api-key': 'YOUR_API_KEY'
    }
  });
  const result = await response.json();

  if (result.type === 'VOIP') {
    return {
      valid: false,
      message: "VoIP numbers are not allowed for security",
      suggestion: "Please use a mobile or landline number"
    };
  }

  return {
    valid: true,
    carrier: result.carrier,
    number: result.number,
    country: result.country
  };
}