How to Remove "Spam Likely" from Your Business Calls
Andrew Larson
Business Communications
Why Does "Spam Likely" Appear?
When your business calls show up as "Spam Likely" on your customers' phones, it's not just annoying—it can seriously hurt your business. Customers don't answer spam calls, and your legitimate outreach goes ignored.
Carriers like AT&T, Verizon, and T-Mobile use sophisticated algorithms to detect potential spam calls. These systems analyze:
- Call volume patterns
- Call duration (very short calls are suspicious)
- Customer complaints
- Caller ID consistency
- Geographic calling patterns
How Carriers Flag Numbers
Each major carrier has its own spam detection system:
AT&T
AT&T's Call Protect service analyzes billions of calls to identify spam patterns. Numbers flagged by their system show "Spam Risk" or are blocked entirely.
Verizon
Verizon's Call Filter uses machine learning and a network-level spam filter. They maintain databases of known spam numbers and analyze real-time calling behavior.
T-Mobile
T-Mobile's Scam Shield is one of the most aggressive systems, blocking scam calls by default for many customers. They use Scam ID and Scam Block features.
Steps to Remove Spam Likely Labels
1. Register with Free Caller Registry
The Free Caller Registry is a database where legitimate businesses can register their phone numbers. While not guaranteed to prevent spam labels, registration signals to carriers that your number belongs to a real business.
2. Submit to Carrier Whitelists
Each carrier has programs for legitimate businesses:
- AT&T Business: Contact AT&T Business services to verify your numbers
- Verizon Business: Use their Caller Name Delivery service
- T-Mobile: Submit through their Business Verified Caller program
3. Maintain Consistent Caller ID
Your outbound caller ID should always display:
- Your actual business name
- A real, callable phone number
- Consistent information across all calls
Changing caller ID frequently is a red flag for spam detection algorithms.
4. Monitor Your Call Patterns
Spam detection looks for:
- High call volumes from a single number
- Many short-duration calls (hang-ups)
- Calls to sequential phone numbers
- Geographic inconsistencies
If your legitimate business activities trigger these patterns, consider spreading calls across multiple numbers or adjusting your timing.
5. Implement STIR/SHAKEN
STIR/SHAKEN is an industry standard for caller ID authentication. When your calls are properly attested, carriers know your caller ID hasn't been spoofed. Phone2 automatically implements STIR/SHAKEN for all outbound calls.
Prevention Tips
Build Your Reputation Slowly
New phone numbers don't have calling history. Start with low volumes and gradually increase. This builds a positive reputation with carrier systems.
Use Business VoIP Services
Consumer phone lines often lack proper business registration. VoIP services like Phone2 provide CNAM (Caller Name) registration and proper carrier authentication.
Respond to Complaints Quickly
If customers report your number as spam, address it immediately. Contact carriers to dispute false reports and ensure your calling practices don't generate legitimate complaints.
What Phone2 Offers
Phone2 helps businesses avoid spam labels through:
- Number Reputation Lookup: Check if your number is flagged before it becomes a problem
- CNAM Registration: Your business name displays correctly on caller ID
- STIR/SHAKEN: Full attestation for all outbound calls
- Call Analytics: Monitor patterns that might trigger spam flags
- Multiple Numbers: Distribute call volume across numbers
- Carrier Relationships: We work with carriers to register legitimate businesses
When to Get a New Number
Sometimes, a number's reputation is too damaged to recover. If you've tried all remediation steps and still get flagged, consider:
- Getting a new business number through Phone2
- Properly registering the new number from day one
- Building reputation slowly with low volumes
- Keeping the old number for incoming calls only
Conclusion
Getting labeled as "Spam Likely" isn't permanent, but fixing it requires proactive steps. Register your numbers, maintain consistent caller ID, and use a business phone service that properly authenticates your calls.
Start fresh with a properly registered business number at phone2.io.

Written by Andrew Larson
Business Communications
Andrew covers technology trends and helps businesses navigate the evolving communication landscape.