| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (301) 363-80** | (301) 363-8003 - (301) 363-8099 | 88 |
| (301) 363-81** | (301) 363-8100 - (301) 363-8199 | 83 |
| (301) 363-82** | (301) 363-8200 - (301) 363-8298 | 87 |
| (301) 363-83** | (301) 363-8300 - (301) 363-8399 | 88 |
| (301) 363-84** | (301) 363-8400 - (301) 363-8499 | 83 |
| (301) 363-85** | (301) 363-8500 - (301) 363-8599 | 85 |
| (301) 363-86** | (301) 363-8600 - (301) 363-8699 | 84 |
| (301) 363-87** | (301) 363-8700 - (301) 363-8799 | 84 |
| (301) 363-88** | (301) 363-8800 - (301) 363-8899 | 84 |
| (301) 363-89** | (301) 363-8900 - (301) 363-8960 | 44 |
US Phone Directory: (301) 363-8***
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