Verify phone number authenticity with ease and accuracy
Our Lookup API leverages Home Location Register data to provide real-time validation of phone numbers, helping you enhance your outreach quality and optimise communications.
Increase the ROI of your mobile campaigns
Use Kaleyra™’s Lookup API to improve campaign efficiency by filtering out invalid numbers, thus maximising reach and minimising wasted spend.
1
Optimise costs
Use our Lookup feature to identify unserviceable numbers and save communication costs in each campaign.
2
Global reach
Check the validity of phone numbers in your home country and all the other places your business functions in.
3
Gather rich data
Avail reliable details about the validity, portability, network operator, and roaming status of the phone numbers in your database.
4
Plan campaigns
Devise geo-specific marketing and promotional activities using your customers’ network carrier details.
Use Kaleyra™’s HLR API for enterprises
Use Kaleyra™’s HLR API for enterprises
Benefit from our international presence
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With 1600+ service provider relationships, we can validate phone numbers in 190+ countries.
Lookup unlimited contacts
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Whatever the scale of your database, we process it with accuracy. There is no upper limit to the number of contacts you can upload.
Experience an intuitive interface
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Perform lookup for millions of contacts from our easy-to-use platform, in just a few clicks.
Our latest resources
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Analyst Recognitions
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