Mobile validation API
Check mobile numbers are valid
Capture better quality customer data No ghost calls or texts Stop wasting staff time
UK and international mobile number validation
Works internationally
Verify whether a UK or international mobile number is capable of receiving texts and calls.
Standardise numbers
Translate haphazardly inputted mobile numbers into a standard format for your database.
Switched on
Determine whether a mobile phone has been switched on recently.
Real time check
Validation performs a live HLR lookup rather than using historic records.
Network provider
Identify the carrier associated with a mobile phone number.
No silent calls
Mobiles are not called and will not ring during the validation process.
Try the demo
See how it works with any mobile phone number
Use PostCoder Web across your business
Checkout and signup forms
Capture real numbers from your customers which you can rely on later.
Call centres
Help your staff by reducing their calls to numbers that don't exist.
CRMs and sales apps
Minimise typos by checking numbers as they’re entered into your system.
A simple API for developers
Sign up for an API key and get free lookups to try
Easy to integrate examples
Secure HTTPS requests
Reporting tools and usage alerts
30ms average response time
>99.99% uptime
Enterprise SLA available
8,000 businesses already trust us
“2x faster checkout times - PostCoder Web has literally transformed our checkout process”
- Zak Edwards, Founder of Prezzybox
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