Check If a Phone Number Is Disposable
Temporary and burner numbers waste your credits, skew your metrics, and signal fraud. NumTrue flags disposable numbers before they reach your pipeline.
$0.0064
starting per check, disposable flag included at no extra cost
<500ms
real-time HLR query returns disposable status instantly
10 free
checks to test it on your own numbers, no card needed
How disposable detection works
HLR network query
We ping the carrier network directly. Disposable providers return a distinct network signature.
Carrier signature check
Cross-referenced against known disposable and VoIP-on-demand carrier signatures in real time.
Disposable flag
If the number matches a disposable provider, you get a clear warning. If it doesn't, you get a verified clean result.
Ported number awareness
Numbers ported to a disposable carrier are also flagged, not just numbers originally issued by them.
Who needs this
Sign-up fraud
Block users who register with temporary numbers to abuse free trials, referral bonuses, or promo codes.
SMS verification
Don't pay to send verification codes to burner numbers that will never convert.
Lead qualification
Filter out disposable leads before your sales team wastes time on them.
Compliance
Show auditors you're screening for disposable numbers as part of your fraud prevention program.