| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (301) 463-61** | (301) 463-6101 - (301) 463-6199 | 82 |
| (301) 463-62** | (301) 463-6201 - (301) 463-6298 | 67 |
| (301) 463-63** | (301) 463-6301 - (301) 463-6397 | 58 |
| (301) 463-64** | (301) 463-6402 - (301) 463-6498 | 72 |
| (301) 463-65** | (301) 463-6500 - (301) 463-6598 | 72 |
| (301) 463-66** | (301) 463-6601 - (301) 463-6699 | 58 |
| (301) 463-67** | (301) 463-6701 - (301) 463-6799 | 68 |
| (301) 463-68** | (301) 463-6829 - (301) 463-6829 | 1 |
| (301) 463-69** | (301) 463-6990 - (301) 463-6990 | 1 |
US Phone Directory: (301) 463-6***
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