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DIDChecks

How many calls per day before being flagged as spam?

The exclusive DIDChecks bureau investigation into telecom detection algorithms.

Report #404CONFIDENTIAL
SPAM!
STOP EVERYTHING!
Control post #1
SHORT ANSWER
Normal Sector
80-100
Calls / day / number
Sensitive Sector
50-70
Calls / day / number
Toxic Sector
30-50
Calls / day / number

The 6 Trigger Signals

What carriers actually monitor

1. Raw Volume

The total number of calls over a 24-hour window. The most basic signal.

2. Answer Rate

Answered/failed ratio. Below 15%, you are flagged as harmful.

3. Reports

The pointing finger. "Report as Spam" clicks on mobile devices.

4. Average Duration

Calls under 10 seconds in a row scream "Automated Calls".

5. Hourly Pace

Concentrated bursts are more suspicious than a steady flow.

6. In/Out Ratio

A number that only calls out without ever receiving is an easy target.

Comparison by Sector

Normal Sector

B2B, SaaS, Professional Services.

90/d
SAFETY THRESHOLD

Sensitive Sector

Insurance, Real Estate, Financial Services.

60/d
MONITORING ZONE

Toxic Sector

Home Improvement, Solar, Extended Warranties, Timeshares.

35/d
HIGH SPAM RISK

The Risk Score Formula

Score = ( Calls × Coeff ) / Answer Rate

Equation certified by the Bureau of Investigation

✅ LOW
Example #1
80 calls x 1.0 / 30% answer rate
Score: 2.6
⚠️ WARNING
Example #2
60 calls x 1.5 / 15% answer rate
Score: 6.0
⛔ DANGER
Example #3
120 calls x 2.0 / 10% answer rate
Score: 24.0

Scaling Up

How to increase volume without ending up in jail

Multi-Numbers

Divide and conquer. Spread your flow across a pool of DIDs.

Answer Master

Improve your opening lines to increase average call duration.

Hourly Rotation

Switch your active numbers every 4 hours.

Forced Rest

Let your "hot" numbers sleep for 48 hours.

Recommendations Register

Desired Total Vol.
Sector
Rec. Lines
500 calls/day
Normal Sector
5 - 7
500 calls/day
Sensitive Sector
8 - 10
1000 calls/day
Normal Sector
10 - 12
1000 calls/day
Toxic Sector
25 - 30
5000 calls/day
Sensitive Sector
70+

Fatal Mistakes

01.

Cold Lists

Calling people who don't expect you = immediate reports. Always scrub against the DNC Registry.

02.

Multiple Callbacks

Calling the same number 5 times in the same day is algorithmic suicide.

03.

Ignoring "No"

Every unhappy prospect is a potential FCC complaint ready to click "Spam".

04.

Burst Calls

Sending 200 calls in 2 minutes at 10am sharp. Verizon and AT&T analytics love that... to flag you.

Interrogation (FAQ)

If I make 200 calls per day, am I automatically flagged?
Not necessarily. If you have 10 numbers in rotation and a good answer rate (>25%), you can make 200 calls/day without problems. It's about distribution and quality, not just volume.
My colleague makes more calls than me and isn't flagged, why?
Probably because they have a better answer rate (better leads, better timing, better opening script). Or they are already flagged and don't know it yet.
Do unanswered calls count?
Yes, and it's even worse. An unanswered call counts toward your volume, lowers your answer rate, and can generate a report if the person sees "Missed Call" and reports it.
Do weekends count the same as weekdays?
No. Weekend calls are more suspicious: fewer legitimate calls, people are more irritable, reporting thresholds are lower. Also note TCPA restricts calling hours to 8am-9pm local time.
Can I change my number every morning?
It's a "Churn" strategy that works short-term, but US carriers now use STIR/SHAKEN authentication to identify callers regardless of the displayed number.

Check if you are already flagged.

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Industries We Serve

BPOInsuranceHome ImprovementLead GenReal EstateHealth
Instant Verification•Auto Monitoring•API•Pricing•FAQ•Spam Directory

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How many calls per day before being flagged as spam? Thresholds and limits | DIDChecks