FutureStarr

312 Area Code

312 Area Code

Area Code 31

Area code 312 is the telephone area code for downtown Chicago, which includes the Chicago Loop and its immediate environs. The plan area is completely surrounded by area code 773, which serves the rest of Chicago. Both area codes are overlaid with area code 872. 312 is an enclave area code, similar to area code 514 in Montreal and area code 210 in San Antonio. It is roughly bounded by North Avenue on the north, Western Avenue on the west, and 35th Street on the south, with Lake Michigan to the east. In terms of geographic area covered, 312 is one of the smallest area codes in the nation, encompassing only a few square miles.

Area Code 31

Area code 312 was officially put into service. In 1989 Area code 312 was split to form area code 708. In 1996 area code 312 was split again to form area code 773. In 2009 area code 312 was overlaid with area code 872.

Area code 312 originally served almost all of the Chicago metropolitan area in Illinois, except for portions of Grundy, Kane, Kankakee, McHenry, and Will counties located in the numbering plan area of the rest of northern Illinois, 815. On November 11, 1989, the suburbs were assigned area code 708 and 312 was reduced to Chicago. (Source: en.wikipedia.org Area code 312 was assigned to one of the original 86 numbering plan areas (NPAs) created in 1947 for the North American Numbering Plan. As a result of Illinois' dense population, particularly in the north, the state was split between four NPAs, given that each NPA could only accommodate approximately 500 central offices.

Is your business ready to expand into the Chicago area code? Nextiva VoIP services make it possible to purchase area code 312, 773 and 708 no matter where in the world you are located. A Chicago area code is an asset to any business. The city is the biggest city in the state of Illinois, and the 3rd largest in the country. It has an estimated population of 2.7 million people and covers 234 square miles. (Source: www.nextiva.com)

 

 

Related Articles