The problem it solves
In a contact database, some numbers no longer work: terminated lines, numbers entered backwards, duplicates, untracked number portings. Every SMS sent to these numbers is billed — and lost.
HLR verification queries the carriers' registry directly (Home Location Register) and tells you, number by number, where each one stands before you launch the campaign.
What the verification returns
- Is the number active or terminated?
- Which carrier actually serves it today (including number portability)?
- Landline or mobile — there is no point sending an SMS to a landline.
- Which country, so you can apply the right rate and the right regulations.
Why it pays off
Every SMS sent to a dead number is billed and lost. Checking the database beforehand lets you send only to reachable numbers, while protecting your sender reputation. The verification rate is set by quote, based on your volume.
A high failure rate damages your reputation with carriers and can cause your subsequent messages to be filtered. Cleaning your database is not just a saving: it is what helps your messages keep getting delivered.
Coverage: many countries. A trial on request lets you test the service on a sample of your database.
