| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (301) 933-50** | (301) 933-5001 - (301) 933-5099 | 85 |
| (301) 933-51** | (301) 933-5100 - (301) 933-5199 | 82 |
| (301) 933-52** | (301) 933-5200 - (301) 933-5299 | 83 |
| (301) 933-53** | (301) 933-5300 - (301) 933-5399 | 80 |
| (301) 933-54** | (301) 933-5400 - (301) 933-5499 | 76 |
| (301) 933-55** | (301) 933-5500 - (301) 933-5599 | 75 |
| (301) 933-56** | (301) 933-5600 - (301) 933-5699 | 89 |
| (301) 933-57** | (301) 933-5701 - (301) 933-5799 | 76 |
| (301) 933-58** | (301) 933-5800 - (301) 933-5898 | 79 |
| (301) 933-59** | (301) 933-5900 - (301) 933-5999 | 74 |
US Phone Directory: (301) 933-5***
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