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AVA Insights · Data Analytics Case Study

IBM Telco Customer Churn
Analysis & Strategic Findings

See Clearly. Execute Decisively.
Dataset: IBM Watson Analytics
Records: 7,032 customers
Prepared: July 2026
AVA SHARMA CONSULTANTS
26.6%
Overall Churn Rate
1,869 of 7,032 customers
$139,131
Monthly Revenue at Risk
From churned accounts
18.0 mo
Avg Tenure — Churned
vs 37.7 mo retained
$74
Avg Monthly Charge — Churned
vs $61 retained
55%
Month-to-Month Contracts
Highest-risk contract type
34%
Electronic Check Users
Highest-churn payment method

Executive Summary

This analysis examines 12 months of customer behaviour across 7,032 telecom accounts. At 26.6% churn, the business is losing $139,131 in monthly recurring revenue from departed customers. Three structural drivers account for the majority of attrition: contract type, payment method, and the critical first-year window. Targeted interventions on these levers — without blanket discounting — offer the highest- probability path to measurable churn reduction.

Finding 1 — Contract Type is the Dominant Churn Driver

Month-to-month contracts churn at a rate nearly 8× that of two-year contracts. This is the single most predictive variable in the dataset.

Implication for strategy: Month-to-month flexibility is a churn engine. The most impactful commercial intervention is an incentive programme that converts month-to-month subscribers to 12- or 24-month terms — not retention discounts applied uniformly after churn intent has already been signalled. Churn prevention is cheaper than win-back; win-back is cheaper than acquisition.

Finding 2 — The First 12 Months are the Danger Window

Customers in their first year churn at nearly 3× the rate of those who have stayed four years or more. If a customer survives year one, the business has likely earned their long-term loyalty.

Implication for strategy: The first 90 days are the highest-leverage onboarding window. Proactive check-ins, service usage nudges, and a structured 6-month review call — none of which require discounting — can materially shift first-year survival rates. The data does not reveal why early customers churn; that requires a qualitative overlay (NPS / CSAT). But the when is unambiguous.

Finding 3 — Payment Method Signals Churn Risk

Electronic check users churn at 45% — more than double the rate of automatic payment customers. This is partly a proxy for contract type (month-to-month customers disproportionately use electronic check), but the signal holds even after controlling for contract.

Implication for strategy: Nudging electronic check users toward automatic bank transfer or credit card payment serves two goals simultaneously: it reduces payment failure risk and is correlated with lower churn. A simple incentive (e.g., one month fee credit for switching to auto-pay) is a low-cost intervention with measurable ROI.

Finding 4 — Higher Spend Does Not Mean Lower Churn

Premium-tier customers ($70–$95+/month) churn at rates comparable to or exceeding mid-tier customers, and they represent a disproportionate share of monthly revenue at risk.

Implication for strategy: High-value customers are not self-retaining. A premium account with Fiber Optic + multiple add-ons on a month-to-month contract is a high-risk combination. Targeted account management — not self-service — is appropriate for this segment. The revenue-at-risk line on the chart makes this concrete: premium-tier churn is a larger absolute problem than the rate alone suggests.

Highest-Risk Segments

Cross-tabulation of contract type and payment method reveals the specific combinations requiring immediate intervention.

ContractPayment MethodCustomersChurn Rate
Month-to-monthElectronic check1,85054%
Month-to-monthBank transfer (automatic)58934%
Month-to-monthCredit card (automatic)54333%
Month-to-month + Electronic check is the canonical high-risk customer: flexible contract, manual payment, typically short tenure. This cohort should be the first target of any retention programme.

Recommended Next Steps

  1. Conversion campaign — Month-to-month → Annual contract. Model the incentive cost against the lifetime value delta of 12- vs 24-month contracts before setting the offer value.
  2. Auto-pay migration drive. Single-touch digital nudge to electronic check users. Measure adoption rate and 90-day churn delta in the converted cohort.
  3. 90-day onboarding programme. Structured check-in sequence for new customers. Instrument it so you can measure first-year survival improvement vs the 47% baseline churn in that cohort.
  4. Premium segment account management. Flag Fiber Optic + month-to-month + high spend combinations for proactive outreach — do not leave them in a self-service queue.
  5. Qualitative overlay. This analysis tells you who churns and when. It does not tell you why. A structured exit survey or NPS analysis of churned accounts is the necessary next step to validate the intervention hypotheses.

Data & Methodology Notes

Source: IBM Watson Analytics Telco Customer Churn dataset, 7,043 records. 11 records with tenure=0 and blank TotalCharges were excluded (no billing history, none churned; <0.2% of the dataset). SeniorCitizen encoding normalised from integer to categorical. All figures are descriptive; churn rates are proportions from historical data, not predictions. The dataset does not include cohort start dates, so time-series trending is not possible with this extract alone. Churn prediction modelling (logistic regression, random forest) is available as a Phase 2 deliverable.