| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (240) 464-40** | (240) 464-4090 - (240) 464-4090 | 1 |
| (240) 464-41** | (240) 464-4120 - (240) 464-4194 | 6 |
| (240) 464-42** | (240) 464-4208 - (240) 464-4294 | 4 |
| (240) 464-43** | (240) 464-4303 - (240) 464-4393 | 5 |
| (240) 464-44** | (240) 464-4407 - (240) 464-4495 | 5 |
| (240) 464-45** | (240) 464-4541 - (240) 464-4585 | 3 |
| (240) 464-46** | (240) 464-4676 - (240) 464-4688 | 2 |
| (240) 464-47** | (240) 464-4749 - (240) 464-4784 | 4 |
| (240) 464-48** | (240) 464-4820 - (240) 464-4883 | 6 |
| (240) 464-49** | (240) 464-4916 - (240) 464-4944 | 5 |
US Phone Directory: (240) 464-4***
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