| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (410) 203-90** | (410) 203-9000 - (410) 203-9099 | 65 |
| (410) 203-91** | (410) 203-9109 - (410) 203-9199 | 58 |
| (410) 203-92** | (410) 203-9200 - (410) 203-9299 | 68 |
| (410) 203-93** | (410) 203-9301 - (410) 203-9399 | 57 |
| (410) 203-94** | (410) 203-9401 - (410) 203-9498 | 70 |
| (410) 203-95** | (410) 203-9500 - (410) 203-9599 | 67 |
| (410) 203-96** | (410) 203-9600 - (410) 203-9699 | 66 |
| (410) 203-97** | (410) 203-9700 - (410) 203-9799 | 71 |
| (410) 203-98** | (410) 203-9800 - (410) 203-9899 | 65 |
| (410) 203-99** | (410) 203-9900 - (410) 203-9999 | 41 |
US Phone Directory: (410) 203-9***
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