Lookup

Lookup increases lead conversion and drives message delivery programmatically.

The Lookup API puts data to work for you.

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 Lookup Free Best for validating inputs	Carrier Lookup $0.005 per request Best for ensuring message delivery	Caller Lookup $0.01 per request Best for identifying inbound callers. US only.
Format and Origin
Line Type
Carrier
Caller Name
Caller Type

Format Lookup Free Best for validating inputs
Format and Origin

Format Lookup

Free

Best for validating inputs

Carrier Lookup $0.005 per request Best for ensuring message delivery
Format and Origin
Line Type
Carrier

Carrier Lookup

$0.005 per request

Best for ensuring message delivery

Caller Lookup $0.01 per request Best for identifying inbound callers. US only.
Format and Origin
Caller Name
Caller Type

Caller Lookup

$0.01 per request

Best for identifying inbound callers. US only.

Sign up and try Lookup

More than 100,000 Lookups per month? Talk to an expert

Increase conversions
Increase deliverability

Good

						number: 231-263-4299
						“caller_name”: “Johnny Appleseed”
						“caller_type”: “CONSUMER”

Bad

						number: 415-701-2311
						“caller_name”: “San Francisco Transit – Bus Line”
						“Caller_type”: “BUSINESS”

Good

						number: 678-276-7297
						“carrier”: {
						“type”: “mobile”,
						“mobile_network_code”: 123,
						“mobile_country_code”: 456,
						“name”: “AT&T”

Bad

						number: 919-410-7522
						“carrier”: {
						“type”: “voip”,
						“mobile_network_code”: null,
						“mobile_country_code”: null,
						“name”: “Google (Grand Central) BWI — Bandwidth.com — SVR”

Sign up to try your own number with Lookup

How Twilio Lookup makes  a difference in your business

Having the correct data is only half the battle. You need accuracy and speed to implement phone intelligence into your business logic. Lookup gives you the tools you need to do just that.

Browse Lookup docs & SDKs

High 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.

Research, Bundle, Build

Next Steps

Research

Discover the right version of Lookup for you

Caller Lookup Carrier Lookup

Bundle

Learn how to add it into your use case

Account Security Contact Center Call & Text Marketing

Build

Get started

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Lookup

The Lookup API puts data to work for you.

Increase lead conversions

Improve message deliverability

Get the data you need with Lookup

Choose the plan that's right for you and your users.

Format Lookup

Carrier Lookup

Caller Lookup

Format Lookup

Carrier Lookup

Caller Lookup

Good

Bad

Good

Bad

How Twilio Lookup makes a difference in your business

High throughput, no throttling

Accurate data backed by multiple sources

Build fast

Research, Bundle, Build

Next Steps

Research

Bundle

Build

How Twilio Lookup makes  a difference in your business