| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (423) 263-41** | (423) 263-4103 - (423) 263-4199 | 2 |
| (423) 263-42** | (423) 263-4200 - (423) 263-4299 | 78 |
| (423) 263-43** | (423) 263-4300 - (423) 263-4399 | 80 |
| (423) 263-44** | (423) 263-4400 - (423) 263-4499 | 80 |
| (423) 263-45** | (423) 263-4500 - (423) 263-4599 | 77 |
| (423) 263-46** | (423) 263-4600 - (423) 263-4662 | 2 |
| (423) 263-47** | (423) 263-4779 - (423) 263-4799 | 2 |
| (423) 263-48** | (423) 263-4800 - (423) 263-4899 | 78 |
| (423) 263-49** | (423) 263-4900 - (423) 263-4999 | 71 |
US Phone Directory: (423) 263-4***
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