| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (512) 257-00** | (512) 257-0000 - (512) 257-0099 | 90 |
| (512) 257-01** | (512) 257-0100 - (512) 257-0199 | 82 |
| (512) 257-02** | (512) 257-0200 - (512) 257-0299 | 85 |
| (512) 257-03** | (512) 257-0300 - (512) 257-0397 | 81 |
| (512) 257-04** | (512) 257-0400 - (512) 257-0499 | 82 |
| (512) 257-05** | (512) 257-0500 - (512) 257-0599 | 91 |
| (512) 257-06** | (512) 257-0600 - (512) 257-0699 | 90 |
| (512) 257-07** | (512) 257-0700 - (512) 257-0799 | 86 |
| (512) 257-08** | (512) 257-0800 - (512) 257-0899 | 90 |
| (512) 257-09** | (512) 257-0900 - (512) 257-0999 | 82 |
US Phone Directory: (512) 257-0***
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