| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (240) 305-30** | (240) 305-3037 - (240) 305-3085 | 7 |
| (240) 305-31** | (240) 305-3105 - (240) 305-3155 | 5 |
| (240) 305-32** | (240) 305-3232 - (240) 305-3292 | 6 |
| (240) 305-33** | (240) 305-3308 - (240) 305-3357 | 5 |
| (240) 305-34** | (240) 305-3426 - (240) 305-3483 | 4 |
| (240) 305-35** | (240) 305-3502 - (240) 305-3586 | 8 |
| (240) 305-36** | (240) 305-3600 - (240) 305-3699 | 8 |
| (240) 305-37** | (240) 305-3741 - (240) 305-3783 | 6 |
| (240) 305-38** | (240) 305-3809 - (240) 305-3810 | 2 |
| (240) 305-39** | (240) 305-3907 - (240) 305-3994 | 8 |
US Phone Directory: (240) 305-3***
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