| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (412) 431-10** | (412) 431-1000 - (412) 431-1099 | 84 |
| (412) 431-11** | (412) 431-1100 - (412) 431-1199 | 78 |
| (412) 431-12** | (412) 431-1200 - (412) 431-1299 | 82 |
| (412) 431-13** | (412) 431-1300 - (412) 431-1399 | 75 |
| (412) 431-14** | (412) 431-1400 - (412) 431-1498 | 81 |
| (412) 431-15** | (412) 431-1500 - (412) 431-1599 | 84 |
| (412) 431-16** | (412) 431-1600 - (412) 431-1699 | 73 |
| (412) 431-17** | (412) 431-1701 - (412) 431-1799 | 80 |
| (412) 431-18** | (412) 431-1800 - (412) 431-1899 | 76 |
| (412) 431-19** | (412) 431-1901 - (412) 431-1999 | 82 |
US Phone Directory: (412) 431-1***
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