| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (210) 431-30** | (210) 431-3000 - (210) 431-3099 | 90 |
| (210) 431-31** | (210) 431-3100 - (210) 431-3199 | 92 |
| (210) 431-32** | (210) 431-3200 - (210) 431-3299 | 88 |
| (210) 431-33** | (210) 431-3300 - (210) 431-3398 | 93 |
| (210) 431-34** | (210) 431-3400 - (210) 431-3499 | 86 |
| (210) 431-35** | (210) 431-3500 - (210) 431-3599 | 89 |
| (210) 431-36** | (210) 431-3600 - (210) 431-3699 | 85 |
| (210) 431-37** | (210) 431-3700 - (210) 431-3705 | 2 |
| (210) 431-38** | (210) 431-3800 - (210) 431-3804 | 2 |
| (210) 431-39** | (210) 431-3905 - (210) 431-3995 | 41 |
US Phone Directory: (210) 431-3***
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