Case Study: Number Status Reduced Carrier Blocking Risk and Improved Contact Rates
The Problem: Bad Numbers Don’t Just Waste Spend — They Hurt Deliverability
A contact-center-driven organization was running outbound calls and SMS follow-up at high volume. Like many teams, they assumed bad numbers were merely an efficiency issue.
But they began seeing warning signals:
- Lower connection rates across campaigns
- Increased spam tagging reports
- Higher SMS non-delivery and filtering
- More frequent need to rotate outbound numbers
The core issue wasn’t just “bad leads.” It was carrier reputation damage caused by repeatedly dialing or messaging invalid and high-risk numbers.
Why It Was Hard to Diagnose
Carrier-level filtering is often invisible.
Teams don’t always receive explicit notices that calls or texts are being blocked.
Instead, the symptoms show up as:
- declining pickup rates
- fewer call completions
- higher cost per contact
- inconsistent SMS delivery
- “it worked last week” frustration
The organization needed a way to reduce bad outbound attempts before they happened.
The VeracityHub Solution: Number Status at the Point of Engagement
The company implemented VeracityHub Number Status in two places:
1) Real-Time Filtering
They validated phone numbers at the moment records entered their dialing and messaging workflow.
2) Batch List Scrubbing
They ran ongoing list cleaning to remove invalid and disconnected numbers before campaigns launched.
Using Number Status, the team flagged or suppressed numbers that were:
- invalid or disconnected
- high-risk line types
- VoIP-heavy patterns depending on campaign rules
- not safe to text (where applicable)
Results: Cleaner Outreach, Stronger Deliverability Signals
After implementation:
- outbound calls hit fewer dead numbers
- SMS sends were targeted at reachable numbers
- carrier-related spam tagging complaints declined
- the need to rotate outbound numbers decreased
- contact rates improved with less wasted capacity
This improved both:
âś… operational efficiency
âś… long-term deliverability reputation
Why This Matters
Many teams treat deliverability as a carrier problem.
But in reality, deliverability is often a data quality problem.
By validating numbers before engaging, the organization reduced the behaviors that cause carriers to filter traffic.
Key Takeaway
Dialing and texting bad numbers isn’t just wasted effort — it can degrade every future contact attempt.
Number Status helps protect deliverability by ensuring only reachable numbers enter outbound workflows.
If your outbound connection rates are dropping, VeracityHub can help you validate numbers before you dial or text.

