Validate Phone Numbers Globally
Validate and normalize phone numbers in international format. Detect line type, carrier information, and ensure proper E.164 formatting.
Key Features
Everything you need to validate data with confidence
International Validation
Validate phone numbers from over 200 countries. Automatically detect country from input or specify explicitly.
Line Type Detection
Identify mobile, landline, VoIP, and toll-free numbers. Useful for segmenting users and optimizing communication.
Carrier Information
Get the mobile network operator for phone numbers. Helps in fraud prevention and user verification.
E.164 Formatting
Automatically format phone numbers to international E.164 standard. Ensures consistency across your systems.
Real-time Validation
Average response time under 100ms. Fast enough for form validation and user lookup.
Active Number Check
Verify if the phone number is currently active and in use. Reduce wasted SMS costs.
Use Cases
See how businesses use this API
Two-Factor Authentication
Validate phone numbers before sending SMS codes. Reduce costs by verifying numbers are mobile and active.
User Verification
Verify user identity during registration. Detect VoIP numbers often used for fraud.
SMS Marketing
Clean phone lists before sending campaigns. Save money by removing invalid and landline numbers.
International Expansion
Accept phone numbers in any format from users worldwide. Automatically normalize and validate.
Simple Integration
Validate phone numbers with just a few lines of code
$client = new \ApiCheck\Client('your-api-key');
$result = $client->validatePhone([
'phone' => '31201234567'
]);
if ($result->isValid()) {
echo $result->getFormatted(); // +31201234567
echo 'Type: ' . $result->getType(); // mobile
}Why Choose ApiCheck?
Built for developers, trusted by businesses
Support for over 200 countries and territories
Detects mobile, landline, VoIP, and toll-free numbers
Average response time under 100ms
Automatic E.164 formatting
Frequently Asked Questions
Find answers to common questions
Which countries are supported?
We support phone number validation for over 200 countries and territories worldwide. The API automatically detects the country from the international dialing code.
What is E.164 format?
E.164 is the international standard for phone number format. It includes the country code and the full phone number, like +31201234567. This ensures compatibility across systems.
Can I detect mobile vs. landline numbers?
Yes! The API returns the line type (mobile, landline, VoIP, toll-free) for each validated number. This is useful for SMS marketing campaigns or user verification.
How accurate is the carrier information?
Carrier information is highly accurate for mobile numbers, covering over 95% of valid mobile numbers globally. This data helps in fraud prevention and user analytics.
Can I check if a number is active?
Yes, we can verify if a phone number is currently active and in service. This helps reduce wasted SMS costs and improves communication reliability.
Ready to get started?
Create a free account today and validate your first data immediately