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.

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

* VoIP line type is only returned for U.S. phone numbers.

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”

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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