| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (301) 985-50** | (301) 985-5000 - (301) 985-5096 | 16 |
| (301) 985-51** | (301) 985-5100 - (301) 985-5198 | 43 |
| (301) 985-52** | (301) 985-5244 - (301) 985-5244 | 1 |
| (301) 985-53** | (301) 985-5313 - (301) 985-5313 | 1 |
| (301) 985-54** | (301) 985-5400 - (301) 985-5494 | 2 |
| (301) 985-56** | (301) 985-5616 - (301) 985-5636 | 2 |
| (301) 985-58** | (301) 985-5803 - (301) 985-5845 | 2 |
| (301) 985-59** | (301) 985-5960 - (301) 985-5960 | 1 |
US Phone Directory: (301) 985-5***
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