| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (301) 943-60** | (301) 943-6005 - (301) 943-6098 | 23 |
| (301) 943-61** | (301) 943-6110 - (301) 943-6190 | 24 |
| (301) 943-62** | (301) 943-6200 - (301) 943-6298 | 21 |
| (301) 943-63** | (301) 943-6310 - (301) 943-6399 | 27 |
| (301) 943-64** | (301) 943-6401 - (301) 943-6492 | 26 |
| (301) 943-65** | (301) 943-6504 - (301) 943-6585 | 28 |
| (301) 943-66** | (301) 943-6600 - (301) 943-6699 | 31 |
| (301) 943-67** | (301) 943-6703 - (301) 943-6792 | 34 |
| (301) 943-68** | (301) 943-6802 - (301) 943-6896 | 33 |
| (301) 943-69** | (301) 943-6902 - (301) 943-6998 | 31 |
US Phone Directory: (301) 943-6***
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