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README.md

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+# Dropped Call Records
+
+## Dataset Description
+
+Records of unsuccessful calls with detailed failure reasons and network conditions
+
+## Dataset Information
+
+- **Category**: Network Performance and Operations
+- **Format**: CSV, Parquet
+- **Rows**: 100,000
+- **Columns**: 11
+- **Date Generated**: 2025-10-05
+- **Location**: `data/dropped_call_records/`
+
+## Schema
+
+| Column | Type | Sample Values |
+|--------|------|---------------|
+| `drop_id` | String | DROP00000001 |
+| `timestamp` | Datetime | 2025-09-29 22:19:27 |
+| `operator` | String | MTN |
+| `calling_number` | String | +2348138619599 |
+| `called_number` | String | +2348054573294 |
+| `tower_id` | String | JOS-9135 |
+| `city` | String | Jos |
+| `call_duration_before_drop` | Integer | 320 |
+| `drop_reason` | String | tower_overload |
+| `signal_strength_dbm` | Integer | -102 |
+| `network_type` | String | 3G |
+
+## Sample Data
+
+```
+     drop_id           timestamp operator calling_number  called_number tower_id     city  call_duration_before_drop       drop_reason  signal_strength_dbm network_type
+DROP00000001 2025-09-29 22:19:27      MTN +2348138619599 +2348054573294 JOS-9135      Jos                        320    tower_overload                 -102           3G
+DROP00000002 2025-09-06 06:40:38  9mobile +2348098254646 +2349029056121 ABE-5633 Abeokuta                        146 equipment_failure                  -77           4G
+DROP00000003 2025-09-26 01:13:35      MTN +2347061520863 +2348099817838 ABA-3864      Aba                        570 equipment_failure                  -76           4G
+```
+
+## Nigerian Context
+
+This dataset incorporates authentic Nigerian telecommunications characteristics:
+
+- **Geographic Coverage**: Major Nigerian cities including Lagos, Abuja, Kano, Port Harcourt, Ibadan
+- **Operators**: MTN, Airtel, Glo, 9mobile with realistic market shares
+- **Phone Numbers**: Nigerian format (+234 prefixes)
+- **Currency**: Nigerian Naira (NGN)
+- **Time Zone**: West Africa Time (WAT, UTC+1)
+- **Network Types**: 2G, 3G, 4G, 5G distribution
+
+## File Formats
+
+### CSV
+```
+data/dropped_call_records/dropped_call_records.csv
+```
+
+### Parquet (Recommended)
+```
+data/dropped_call_records/dropped_call_records.parquet
+```
+
+## Loading the Dataset
+
+### Python (Pandas)
+```python
+import pandas as pd
+
+# Load CSV
+df = pd.read_csv('data/dropped_call_records/dropped_call_records.csv')
+
+# Load Parquet (recommended for large datasets)
+df = pd.read_parquet('data/dropped_call_records/dropped_call_records.parquet')
+```
+
+### Python (PyArrow)
+```python
+import pyarrow.parquet as pq
+
+# Load Parquet
+table = pq.read_table('data/dropped_call_records/dropped_call_records.parquet')
+df = table.to_pandas()
+```
+
+## License
+
+MIT License - For educational and research purposes
+
+## Citation
+
+```
+Nigerian Telecom Datasets - Dropped Call Records
+Generated: 2025-10-05
+Category: Network Performance and Operations
+Rows: 100,000
+```
+
+## Related Datasets
+
+This dataset is part of the Nigerian Telecom Datasets collection, which includes 34 datasets covering network performance, customer behavior, financial transactions, infrastructure, geospatial data, customer experience, and emerging technologies.

dropped_call_records.csv

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dropped_call_records.parquet

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