| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (301) 967-50** | (301) 967-5000 - (301) 967-5043 | 2 |
| (301) 967-51** | (301) 967-5192 - (301) 967-5192 | 1 |
| (301) 967-52** | (301) 967-5261 - (301) 967-5273 | 2 |
| (301) 967-53** | (301) 967-5350 - (301) 967-5350 | 1 |
| (301) 967-54** | (301) 967-5470 - (301) 967-5470 | 1 |
| (301) 967-55** | (301) 967-5504 - (301) 967-5587 | 18 |
| (301) 967-56** | (301) 967-5602 - (301) 967-5694 | 19 |
| (301) 967-57** | (301) 967-5700 - (301) 967-5780 | 3 |
| (301) 967-59** | (301) 967-5901 - (301) 967-5958 | 37 |
US Phone Directory: (301) 967-5***
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