Know the details behind every number with Number Lookup
Try our free International Lookup for instant number and carrier information
curl 'https://api.telnyx.com/anonymous/v2/number_lookup/XXXXXXXXXX'Use detailed number information to elevate your customer experience
Increase conversion rates
Augment your customer experience by understanding who's calling, even if they haven't called before. Use caller ID and persona type to deliver a tailored experience to increase conversion.
Send messages that deliver
Ensure customers get the information they need. Split landline and mobile numbers programmatically, and check carrier information to guarantee your texts are delivered.
Increase security
When you know a customer can receive SMS, you can enable Two-Factor Authentication to verify their credentials to keep both your data and their data safe.
Get the data you need on demand
Find the exact number information you need in an instant with our easy-to-use API.**
| Portability Lookup | Caller Lookup | Carrier Lookup | |
|---|---|---|---|
| Use to check number port status | Use 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 |
Questions on setup? Talk to our experts.
What can you build with the Telnyx Lookup API?
- Learn more
Contact Center
Improve call outcomes with instant customer context. - Learn more
Two-Factor Authentication
Use SMS to verify customer credentials and keep your data safe. - Learn more
SMS Marketing
Engage customers with targeted messages and personalized offers. - Learn more
Call Tracking
Increase campaign ROI with higher conversion rates.
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?
Questions on setup? Talk to our experts
Frequently Asked Questions
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).
That’s easy! Just sign up for our Mission Control Portal. From there, take a look at our API reference docs and start building.
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.
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.
Head over to our Lookup pricing page for more details, or speak to one of our experts about custom pricing options.
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.
To search for a phone number you'll need to login to your Telnyx Mission Control Portal account an navigate to Lookup. From there you should enter the country code and 10-digit number and click 'Lookup Number'.