Free tool
If carriers flag your outbound number, most of your calls die before anyone picks up. Check your number against major US carrier spam databases.
Why your number gets flagged as Spam Likely
US carriers run analytics engines (First Orion for T-Mobile, Hiya for AT&T, TNS for Verizon) that score every calling number. High outbound volume with short call durations, low answer rates, consumer complaints, and unregistered numbers all push your score toward a “Spam Likely” or “Scam Likely” label - even when every call you make is legitimate.
How to fix a spam-labeled number
Register your numbers with the Free Caller Registry, which submits them to all three carrier analytics providers at once. File remediation requests for numbers already labeled. Then fix the behavior that caused it: spread volume across registered numbers, improve list quality so answer rates rise, and consider branded caller ID so customers see your business name instead of a number.
Why we ask for a work email
Carrier lookups cost real money per query, so we reserve full reports for verified businesses. Enter your work email and we deliver the complete carrier-by-carrier report for your number at no cost. Personal addresses like Gmail or Outlook will not work.
Frequently asked questions
Why is my business number showing as Spam Likely?
Carrier analytics providers flag numbers based on call patterns: high volume, short durations, low answer rates, and consumer complaints. New or unregistered numbers making many outbound calls are especially likely to get labeled.
How do I remove the Spam Likely label from my number?
Register the number at the Free Caller Registry (covers all three major US analytics providers), submit a remediation request for existing labels, and change the calling patterns that triggered the flag. Labels typically clear within days once remediation is accepted.
Does the check call or text my number?
No. The lookup queries carrier reputation databases only - your phone never rings, and nothing is sent to the number.