Phone Prefix | Range | Phones Recorded |
---|---|---|
(301) 439-10** | (301) 439-1000 - (301) 439-1099 | 77 |
(301) 439-11** | (301) 439-1100 - (301) 439-1199 | 79 |
(301) 439-12** | (301) 439-1200 - (301) 439-1299 | 83 |
(301) 439-13** | (301) 439-1301 - (301) 439-1399 | 86 |
(301) 439-14** | (301) 439-1400 - (301) 439-1499 | 73 |
(301) 439-15** | (301) 439-1500 - (301) 439-1599 | 90 |
(301) 439-16** | (301) 439-1600 - (301) 439-1699 | 81 |
(301) 439-17** | (301) 439-1705 - (301) 439-1799 | 68 |
(301) 439-18** | (301) 439-1801 - (301) 439-1899 | 80 |
(301) 439-19** | (301) 439-1900 - (301) 439-1999 | 78 |
US Phone Directory: (301) 439-1***
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