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Telco customer churn — what's driving it
A completed analysis of 7,043 telco customers (26.5% churned). Explore the real insights, charts, and a pinned dashboard — no signup needed.
Rows
7,043
Columns
21
Numeric
3
Categorical
3
Missing
0.2%
Data quality report
Grade BGeneralStrong — ready for analysis
Missing data · raw upload: 0.16% of cells (~11 rows with any gap)·after cleaning: 0.16% of cells (~11 rows with any gap)
7,043 rows · 21 columns
Score breakdown
Completeness
99.0/30
Uniqueness
95.0/20
Consistency
86.0/20
Validity
82.0/15
Structure
78.0/15
Client readiness
Missing data is under 1% — minimal impact on analysis
No duplicate rows detected
No critical structural issues detected
Score deductions
11 rows have blank TotalCharges (all brand-new, tenure = 0)
SeniorCitizen is stored as a 0/1 integer rather than a boolean flag
What looks healthy
Completeness is strong — very few missing values
Uniqueness is strong — minimal duplicates
Data formats are consistent
Value distributions look normal
Column structure is clean
Cleaning Summary
Cleaning summary
Metrics from this run only.
Cleaning steps
4
Type conversions
1
Normalized dtypes in pipeline.
Suspicious columns
1
Review below or in Cleaning.
Top highlights
Contract type is the #1 churn driver — month-to-month churns 8× more
Month-to-month customers churn at 42.7% versus just 5.1% on one- or two-year contracts — a 38.4pp gap. A logistic model confirms Contract is the single strongest predictor of churn (AUC 0.84), ahead of charges, tenure, and services.
Fiber-optic customers churn the most (41.8%)
Fiber optic internet customers churn at 41.8%, more than double DSL (19.0%) and 5× customers with no internet service (7.4%). Despite higher revenue, fiber's churn risk erodes lifetime value.
Electronic-check payers churn at 45%
Customers paying by electronic check churn at 45.2% — roughly triple the rate of automatic payment methods (bank transfer 16.7%, credit card 15.2%). Payment friction is a strong retention signal.
All insights
For your report
5 findingsSafe to include without manual reviewContract type is the #1 churn driver — month-to-month churns 8× more
Month-to-month customers churn at 42.7% versus just 5.1% on one- or two-year contracts — a 38.4pp gap. A logistic model confirms Contract is the single strongest predictor of churn (AUC 0.84), ahead of charges, tenure, and services.
Fiber-optic customers churn the most (41.8%)
Fiber optic internet customers churn at 41.8%, more than double DSL (19.0%) and 5× customers with no internet service (7.4%). Despite higher revenue, fiber's churn risk erodes lifetime value.
Electronic-check payers churn at 45%
Customers paying by electronic check churn at 45.2% — roughly triple the rate of automatic payment methods (bank transfer 16.7%, credit card 15.2%). Payment friction is a strong retention signal.
Shorter tenure is strongly linked to churn (r = −0.35)
Churn falls steeply as tenure grows. Churned customers have a median tenure of 10 months versus 38 months for retained customers — most churn happens in the first year.
Senior citizens churn at nearly double the base rate
Senior citizens churn at 41.7% versus 23.6% for non-seniors. Seniors skew toward fiber and electronic check, compounding their churn risk.
5 findings marked report-ready — head to Report to select which ones to include.
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