| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (301) 808-50** | (301) 808-5000 - (301) 808-5099 | 50 |
| (301) 808-51** | (301) 808-5100 - (301) 808-5198 | 38 |
| (301) 808-52** | (301) 808-5200 - (301) 808-5298 | 55 |
| (301) 808-53** | (301) 808-5302 - (301) 808-5398 | 56 |
| (301) 808-54** | (301) 808-5401 - (301) 808-5498 | 44 |
| (301) 808-55** | (301) 808-5551 - (301) 808-5551 | 1 |
| (301) 808-56** | (301) 808-5624 - (301) 808-5624 | 1 |
| (301) 808-57** | (301) 808-5727 - (301) 808-5796 | 2 |
| (301) 808-58** | (301) 808-5850 - (301) 808-5899 | 29 |
| (301) 808-59** | (301) 808-5920 - (301) 808-5999 | 12 |
US Phone Directory: (301) 808-5***
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