Free tool
Is your caller ID marked Spam Likely? Check free.
Enter a business number and see its live carrier spam score — the label your customers see before they decide not to answer.
free spam-score check
Checks live carrier analytics. No account needed.
scanning carrier analytics…
RoboKiller, Nomorobo & FTC complaint detail — plus scan up to 5 numbers
Free with a verified business email.
Unlock the full report
We'll email you a 6-digit code. Free email providers (Gmail, Yahoo, Outlook…) aren't accepted.
Enter your code
Code sent to — check your inbox.
Codes expire in 10 minutes.
Verified as
How carriers decide you're spam
Every major US carrier runs your calls through an analytics engine — First Orion (T-Mobile), Hiya (AT&T), and TNS (Verizon). These engines score calling numbers on volume spikes, short call durations, low answer rates, and consumer complaints, then stamp "Spam Likely" or "Scam Likely" on your caller ID. Flagged numbers see answer rates drop by half or more — which quietly kills contact rates, conversion, and revenue.
95% of malicious calls blocked is great for consumers — but the same nets catch legitimate businesses every day. Checking your numbers regularly is the only way to know what your customers actually see.
Frequently asked questions
Why is my number labeled Spam Likely?
Carriers and analytics engines (First Orion, Hiya, TNS) score every calling number on volume, answer rates, call duration, and consumer complaints. High-volume outbound patterns — even fully legal ones — often trip the same signals as robocallers, so legitimate business numbers get flagged.
How often should I check my numbers?
Scores drift constantly as your calling patterns and complaint volumes change. A number that's clean today can be flagged next week after one heavy campaign. Continuous monitoring (our TrustCall product) checks daily and alerts you on changes.
Can a spam label be removed?
Yes. Remediation involves registering your numbers with the carriers' analytics partners, correcting your business identity, and fixing the calling behavior that caused the flag. TrustCall Remediation handles this end-to-end.
Is this check free?
Yes — one number free with no account. Verify a business email and you can check up to five numbers a day plus RoboKiller, Nomorobo, and FTC complaint detail.