| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (301) 934-10** | (301) 934-1000 - (301) 934-1098 | 60 |
| (301) 934-11** | (301) 934-1100 - (301) 934-1199 | 66 |
| (301) 934-12** | (301) 934-1200 - (301) 934-1299 | 79 |
| (301) 934-13** | (301) 934-1300 - (301) 934-1399 | 80 |
| (301) 934-14** | (301) 934-1400 - (301) 934-1499 | 85 |
| (301) 934-15** | (301) 934-1500 - (301) 934-1599 | 70 |
| (301) 934-16** | (301) 934-1600 - (301) 934-1699 | 83 |
| (301) 934-17** | (301) 934-1700 - (301) 934-1799 | 81 |
| (301) 934-18** | (301) 934-1800 - (301) 934-1898 | 69 |
| (301) 934-19** | (301) 934-1900 - (301) 934-1998 | 83 |
US Phone Directory: (301) 934-1***
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