Top 10 phone validation api provider

1. Twilio: Twilio is a cloud communications platform that provides phone validation services through its Lookup API. It can validate phone numbers in over 230 countries and supports both landline and mobile numbers.

2. Nexmo: Nexmo is another cloud communications platform that offers phone validation services through its Verify API. It supports phone number validation in over 150 countries and can also be used to verify phone numbers through SMS or voice calls.

3. NumVerify: NumVerify is a phone validation service that can be integrated into various applications through its API. It supports phone number validation in over 232 countries and can also provide additional information such as carrier and line type.

4. Proweblook: Phone Number Checker is a simple yet powerful REST API that takes a phone number and returns whether or not it is valid, as well as additional information about the phone number, such as its country and sometimes city / region of origin, as well as information like phone number type and carrier. These checks can be done asynchronously or in real-time. By verifying phone numbers via API, you can help keep your sign up and other such flows clear of fake phone numbers and other data and ensure only correct users or numbers.

5. Syniverse: Syniverse is a global communications company that provides phone validation services through its Verify API. It supports phone number validation in over 200 countries and can also provide additional information such as carrier and line type.

6. Sinch: Sinch is a cloud communications platform that offers phone validation services through its Verify API. It supports phone number validation in over 200 countries and can also be used to verify phone numbers through SMS or voice calls.

7. Whitepages Pro: Whitepages Pro is a phone validation service that can be integrated into various applications through its API. It supports phone number validation in over 240 countries and can also provide additional information such as carrier and line type.

8. Neustar: Neustar is a global information services company that provides phone validation services through its API. It supports phone number validation in over 200 countries and can also provide additional information such as carrier and line type.

9. OpenCNAM: OpenCNAM is a phone validation service that can be integrated into various applications through its API. It supports phone number validation in over 230 countries and can also provide additional information such as caller name and caller type.

10. Telesign: Telesign is a phone validation service that can be integrated into various applications through its API. It supports phone number validation in over 230 countries and can also be used to verify phone numbers through SMS or voice calls.