Phone Prefix | Range | Phones Recorded |
---|---|---|
(312) 553-40** | (312) 553-4000 - (312) 553-4090 | 2 |
(312) 553-42** | (312) 553-4200 - (312) 553-4231 | 5 |
(312) 553-43** | (312) 553-4314 - (312) 553-4357 | 9 |
(312) 553-44** | (312) 553-4400 - (312) 553-4488 | 12 |
(312) 553-45** | (312) 553-4503 - (312) 553-4550 | 5 |
(312) 553-46** | (312) 553-4600 - (312) 553-4662 | 11 |
(312) 553-47** | (312) 553-4700 - (312) 553-4778 | 5 |
(312) 553-48** | (312) 553-4800 - (312) 553-4848 | 4 |
(312) 553-49** | (312) 553-4900 - (312) 553-4968 | 6 |
US Phone Directory: (312) 553-4***
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