| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (503) 531-30** | (503) 531-3001 - (503) 531-3083 | 4 |
| (503) 531-31** | (503) 531-3100 - (503) 531-3199 | 39 |
| (503) 531-32** | (503) 531-3200 - (503) 531-3299 | 63 |
| (503) 531-33** | (503) 531-3301 - (503) 531-3399 | 61 |
| (503) 531-34** | (503) 531-3400 - (503) 531-3496 | 63 |
| (503) 531-35** | (503) 531-3500 - (503) 531-3599 | 62 |
| (503) 531-36** | (503) 531-3600 - (503) 531-3698 | 62 |
| (503) 531-37** | (503) 531-3700 - (503) 531-3799 | 63 |
| (503) 531-38** | (503) 531-3801 - (503) 531-3899 | 51 |
| (503) 531-39** | (503) 531-3900 - (503) 531-3999 | 65 |
US Phone Directory: (503) 531-3***
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