Phone Prefix | Range | Phones Recorded |
---|---|---|
(301) 231-70** | (301) 231-7002 - (301) 231-7098 | 49 |
(301) 231-71** | (301) 231-7105 - (301) 231-7196 | 53 |
(301) 231-72** | (301) 231-7201 - (301) 231-7296 | 52 |
(301) 231-73** | (301) 231-7300 - (301) 231-7398 | 49 |
(301) 231-74** | (301) 231-7400 - (301) 231-7499 | 53 |
(301) 231-75** | (301) 231-7500 - (301) 231-7598 | 42 |
(301) 231-76** | (301) 231-7607 - (301) 231-7698 | 55 |
(301) 231-77** | (301) 231-7700 - (301) 231-7799 | 46 |
(301) 231-78** | (301) 231-7800 - (301) 231-7899 | 57 |
(301) 231-79** | (301) 231-7900 - (301) 231-7999 | 41 |
US Phone Directory: (301) 231-7***
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