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Illinois cell phone numbers

Illinois phone book
Official name: State of Illinois
Illinois postal code abbreviation: IL
Illinois prefix phone numbers: 217 224 309 312 331 618 630 708 773 779 815 847 872
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Total area: 149 998 km2

✅ What is the largest city by population in Illinois?

- Largest Illinois cities by population: Chicago

✅ What is the capital of Illinois?

- State capital of Illinois: Springfield

✅ What is the population of Illinois?

- Illinois state population 2021: 12 869 257

Cities in Illinois

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