| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (301) 203-80** | (301) 203-8000 - (301) 203-8099 | 71 |
| (301) 203-81** | (301) 203-8122 - (301) 203-8198 | 44 |
| (301) 203-82** | (301) 203-8203 - (301) 203-8299 | 65 |
| (301) 203-83** | (301) 203-8300 - (301) 203-8399 | 56 |
| (301) 203-84** | (301) 203-8400 - (301) 203-8499 | 61 |
| (301) 203-85** | (301) 203-8500 - (301) 203-8599 | 60 |
| (301) 203-86** | (301) 203-8600 - (301) 203-8699 | 62 |
| (301) 203-87** | (301) 203-8702 - (301) 203-8798 | 63 |
| (301) 203-88** | (301) 203-8800 - (301) 203-8899 | 66 |
| (301) 203-89** | (301) 203-8901 - (301) 203-8998 | 59 |
US Phone Directory: (301) 203-8***
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