Lookup
Lookup helps you reduce fraud, increase lead conversion, and drive message delivery programmatically.
Sign up and start buildingThe Lookup API puts data to work for you.
Reducing fraud
Fraud comes in all shapes and sizes. You need a versatile tool to help you detect and fight anything from spam account signups to bad actors.
Lookup helps you spot fraud using phone number data such as caller origin, line type, and caller name. Protect users, and assess risk proactively using reliable data.
Increase lead conversions
Context is essential to customer experience and conversion. Lookup instantly delivers you a caller ID name and persona type so you can provide a customer or business with a tailored experience — even if it’s their first time calling in.
Improve message deliverability
Your message matters to your customers. Lookup serves up carrier and phone number information so you can pick the right medium for your message and ensure it’s delivered.
Get the data you need with Lookup
Choose the plan that's right for you and your users.
Format LookupFree Best for validating inputs | Carrier Lookup.5 cents per request Best for ensuring message delivery | Caller Lookup1 cent per request Best for identifying inbound callers. US only. | Fraud Lookup Request access | |
|---|---|---|---|---|
| Format and Origin | ||||
| Line Type | ||||
| Carrier | ||||
| Caller Name | ||||
| Caller Type | ||||
| Advanced Line Type | ||||
| Porting History | ||||
| Roaming Status |
Format LookupFree Best for validating inputs |
|---|
| Format and Origin |
Carrier Lookup.5 cents per request Best for ensuring message delivery |
|---|
| Format and Origin |
| Line Type |
| Carrier |
Caller Lookup1 cent per request Best for identifying inbound callers. US only. |
|---|
| Format and Origin |
| Caller Name |
| Caller Type |
Fraud Lookup |
|---|
| Format and Origin |
| Caller Name |
| Caller Type |
| Advanced Line Type |
| Porting History |
| Roaming Status |
More than 100,000 Lookups per month? Talk to an expert
How Twilio Lookup makes a difference in your business
Having the correct data is only half the battle. You need accuracy and speed to protect your users and fight fraud at scale. Lookup gives you the tools you need to do just that.
Browse Lookup docs & SDKsHigh throughput, no throttling
Lookup enables you to make thousands of requests per second with no lag.
Accurate data backed by multiple sources
Old data is as good as no data. Lookup gives you the most current data so you can make the right decisions.
Build fast
Lookup is easy to integrate with your application via REST API and prebuilt SDKs.