| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (301) 799-90** | (301) 799-9000 - (301) 799-9099 | 51 |
| (301) 799-91** | (301) 799-9100 - (301) 799-9199 | 45 |
| (301) 799-92** | (301) 799-9201 - (301) 799-9299 | 9 |
| (301) 799-93** | (301) 799-9326 - (301) 799-9326 | 1 |
| (301) 799-94** | (301) 799-9459 - (301) 799-9459 | 1 |
| (301) 799-96** | (301) 799-9606 - (301) 799-9648 | 3 |
| (301) 799-99** | (301) 799-9916 - (301) 799-9966 | 2 |
US Phone Directory: (301) 799-9***
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