List of Area Codes in Illinois | ||
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217 Area Code | 309 Area Code | 312 Area Code |
331 Area Code | 618 Area Code | 630 Area Code |
708 Area Code | 773 Area Code | 872 Area Code |
County List of Area Code 224 | ||
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Cook Area code | Kane Area code | Lake Area code |
McHenry Area code |
County List of Area Code 847 | ||
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Cook Area code | Kane Area code | Lake Area code |
McHenry Area code |