| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (312) 744-60** | (312) 744-6000 - (312) 744-6060 | 4 |
| (312) 744-61** | (312) 744-6146 - (312) 744-6146 | 1 |
| (312) 744-62** | (312) 744-6222 - (312) 744-6249 | 5 |
| (312) 744-63** | (312) 744-6304 - (312) 744-6382 | 4 |
| (312) 744-64** | (312) 744-6412 - (312) 744-6483 | 6 |
| (312) 744-65** | (312) 744-6500 - (312) 744-6566 | 3 |
| (312) 744-66** | (312) 744-6616 - (312) 744-6696 | 7 |
| (312) 744-68** | (312) 744-6802 - (312) 744-6875 | 8 |
| (312) 744-69** | (312) 744-6900 - (312) 744-6990 | 3 |
US Phone Directory: (312) 744-6***
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