| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (210) 521-90** | (210) 521-9000 - (210) 521-9099 | 86 |
| (210) 521-91** | (210) 521-9100 - (210) 521-9199 | 72 |
| (210) 521-92** | (210) 521-9200 - (210) 521-9299 | 79 |
| (210) 521-93** | (210) 521-9300 - (210) 521-9399 | 83 |
| (210) 521-94** | (210) 521-9400 - (210) 521-9499 | 86 |
| (210) 521-95** | (210) 521-9500 - (210) 521-9599 | 85 |
| (210) 521-96** | (210) 521-9600 - (210) 521-9699 | 73 |
| (210) 521-97** | (210) 521-9700 - (210) 521-9798 | 79 |
| (210) 521-98** | (210) 521-9800 - (210) 521-9899 | 76 |
| (210) 521-99** | (210) 521-9900 - (210) 521-9998 | 86 |
US Phone Directory: (210) 521-9***
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