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With the depletion of new numbers in area codes 312 and 773, an overlay of both of them, area code 872, was created in November 2009, beginning ten-digit dialing within the city limits of Chicago. The remaining area without an overlay in the northern part of Illinois, 708, eventually received such with area code 464 taking effect on January 21 ...
On October 7, 2007, area code 331 began overlaying area code 630, making ten-digit dialing mandatory in the area. The Illinois side of the Chicago area–312/773/872, 708, 847/224, 630/331 and portions of 815/779–is one of the largest local calling areas in the United States; with few exceptions, no long-distance charges are applied from one ...
Westmont, Illinois. Location of Westmont in DuPage County, Illinois. Westmont is a village in DuPage County, Illinois, United States. Located in the southeastern portion of DuPage County, Westmont is a community of 5.03 square miles in area with a 2020 population of 24,429. [3] It is a southwest suburb of Chicago.
Area code 872. Coordinates: 41°52′48″N 87°37′54″W. All NPAs within Illinois. Area code 872 is a telephone area code in the North American Numbering Plan for Chicago in the U.S. state of Illinois. It is an overlay code for a numbering plan area that comprises those of area codes 312 and 773. The overlay commenced service on November 7 ...
The 618 area code dates to 1947. A new 730 area code overlaying the current 618 area code will be introduced in southern Illinois next year, the Illinois Commerce Commission announced Wednesday.
Area codes 309 and 861. Coordinates: 40°41′31″N 89°35′28″W. Area codes of Illinois. Area codes 309 and 861 are telephone area codes in the North American Numbering Plan (NANP) for the west-central part of the U.S. state of Illinois. The numbering plan area includes cities such as Bloomington, Canton, East Moline, East Peoria ...
Periodic proposals were made for code relief, and area code 730 was designated for an overlay complex. Implementation was completed with an in-service date of July 7, 2023, resulting in all Illinois area codes being overlay codes. [4] Prior to October 2021, area code 618 had telephone numbers assigned for the central office code 988.
It was the only new area code created in Illinois between 1947 and the 1989 creation of area code 708. [2] In preparation of an overlay plan with the new area code 779, all calls from the 815 area needed to be dialed with an area code beginning on February 17, 2007. A month later, area code 779 was activated.