| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (503) 231-10** | (503) 231-1000 - (503) 231-1099 | 50 |
| (503) 231-11** | (503) 231-1100 - (503) 231-1199 | 61 |
| (503) 231-12** | (503) 231-1204 - (503) 231-1297 | 60 |
| (503) 231-13** | (503) 231-1300 - (503) 231-1399 | 69 |
| (503) 231-14** | (503) 231-1400 - (503) 231-1499 | 60 |
| (503) 231-15** | (503) 231-1500 - (503) 231-1599 | 64 |
| (503) 231-16** | (503) 231-1600 - (503) 231-1698 | 60 |
| (503) 231-17** | (503) 231-1700 - (503) 231-1797 | 53 |
| (503) 231-18** | (503) 231-1800 - (503) 231-1898 | 53 |
| (503) 231-19** | (503) 231-1900 - (503) 231-1999 | 62 |
US Phone Directory: (503) 231-1***
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