| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (240) 338-50** | (240) 338-5004 - (240) 338-5098 | 12 |
| (240) 338-51** | (240) 338-5102 - (240) 338-5196 | 16 |
| (240) 338-52** | (240) 338-5201 - (240) 338-5299 | 18 |
| (240) 338-53** | (240) 338-5301 - (240) 338-5374 | 16 |
| (240) 338-54** | (240) 338-5408 - (240) 338-5481 | 9 |
| (240) 338-55** | (240) 338-5516 - (240) 338-5598 | 6 |
| (240) 338-56** | (240) 338-5604 - (240) 338-5696 | 10 |
| (240) 338-57** | (240) 338-5705 - (240) 338-5799 | 20 |
| (240) 338-58** | (240) 338-5801 - (240) 338-5899 | 18 |
| (240) 338-59** | (240) 338-5900 - (240) 338-5995 | 16 |
US Phone Directory: (240) 338-5***
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