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Locations for Area Code - 312

Browse all cities and areas that belong to this area code.

Area code 312 serves the central core of Chicago, Illinois, including the downtown Loop and major business districts. As one of the original area codes created in 1947, 312 once covered all of northern Illinois but now represents a highly concentrated urban zone. Overlays with 872 have made ten-digit dialing necessary. Chicago's economic, cultural, and political significance is closely tied to the prestige of the 312 area code, which continues to be associated with legacy institutions, iconic architecture, finance, and national media. It is one of the most recognizable and desirable area codes in the Midwest.

West Chicago

State: IL

Population: 27,447

Latitude: 41.88475, Longitude: -88.20396

Elevation: 239 m

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Multiple Numbers

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Local Presence

Get a 312 number to appear local in Illinois. Build trust with clients, contacts, or audiences in that area.

Where to Use Virtual Numbers by Area Code?

Recognizable Area Code. Disposable Phone Line.

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Customer Support Lines

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Why use an Area Code Phone Number?

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The number is local, but it is not permanent. Ideal for ad hoc projects, marketing campaigns, and temporary business needs.

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