Try our free International Lookup for instant number and carrier information

Enter a phone number
US
curl 'https://api.telnyx.com/anonymous/v2/number_lookup/XXXXXXXXXX'

Build real-time programmatic intelligence with granular data

  • Increase conversion rates
    The first step in delivering a great customer experience is understanding who’s calling. Use caller ID and persona type to deliver a more tailored experience that increases conversion.
  • Send messages that deliver
    Make sure customers get the information they need. Split landline and mobile numbers programmatically, and check carrier information to guarantee your texts are delivered.
  • Know where your numbers are
    Porting numbers doesn’t have to be frustrating. Check your number port status in real-time with our direct access to the NPAC LRN database and always know where you stand.

Get the data you need on demand

Find the exact information for your use-case with our easy-to-use API.

 Portability LookupCaller LookupCarrier Lookup
 Use to check number port statusUse to identify inbound callers.Use for international lookups.
Format and Origin
Carrier Data  
Mobile Country Code (MCC)  
Mobile Network Code (MNC)  
Caller Data  
Portability Data
LRN
SPID
OCN
ALT-SPID

Use Cases

What can you build with the Telnyx Lookup API?

  • Contact Center

    Improve call outcomes with instant customer context.

  • Two-Factor Authentication

    Use SMS to verify customer credentials and keep your data safe.

  • SMS Marketing

    Engage customers with targeted messages and personalized offers.

  • Call Tracking

    Increase campaign ROI with higher conversion rates.

Why Telnyx

Reliable lookup data in real-time

  • Easy-to-use API

    Integrate Lookup into your application with ease using our low-latency REST API and comprehensive documentation.

  • Global coverage

    Need to validate international numbers? Use our Carrier Lookup for extensive international number data.

  • Granular control

    You control how you query the Telnyx API. Get what you need without paying for unnecessary data.

  • Accurate data in real-time

    Backed by multiple sources, Lookup gives you the most current data for you to make the most informed decision.

Ready to get started?

Frequently Asked Questions

What is Number Lookup?
Number Lookup is a tool that allows you to find out the details behind a phone number. This info can help you validate and format numbers, identify the carrier and number type and even find out the owner’s name (for US numbers only).


How do I get started with Telnyx Lookup?
That’s easy! Just sign up for our Mission Control Portal. From there, take a look at our API reference docs and start building.


Can I use Lookup on international numbers?
Yes! Use our Carrier Lookup for international numbers to see where a number is registered, number type, carrier name, Mobile Country Code (MCC), Mobile Network Code (MNC), and more.

What does LRN mean?
LRN, or Local Routing Number is an identification for a telephone switch for the purpose of routing telephone calls through the PSTN in the US. With this, you’ll know exactly how calls to the number will be billed on tariff pricing.


Where can I find Telnyx Lookups pricing?
Head over to our Lookups pricing page for more details, or speak to one of our experts about custom pricing options.


How does lookup help with SMS delivery?
Lookup will tell you whether the number is mobile or fixed-line, so you don’t waste money sending SMS to landlines, and can choose an alternative method of communication where necessary.

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