Knowledge is power
Make informed, strategic decisions about how you communicate with your customers. Bandwidth's Phone Number Lookup API returns line type, line provider, country, and more to help you connect.
More easily predict costs & deliverability
There are lots of changes happening in the messaging industry. Carrier identification allows you to know your carrier mix before you start sending text messages, helping you to more accurately predict your costs and message deliverability rates.
Send messages to numbers that can receive them
You pay for every message you send, not every one that’s received. Bandwidth’s Phone Number Lookup API enables you to easily sort numbers to ensure you’re only sending to mobile phones that can receive text messages.
Provide a better security experience
Using Bandwidth’s Phone Number Lookup API enables you to target the right type of multi-factor authentication to your customers, sending voice or text message authentication based on their line type.