North American Numbering Plan Area 312, Exchange 999, Thousand Block 2 Information Page
Information about North American Numbering Plan Area 312, Exchange 999, Thousand Block 2
Here is some general information about this exchange
Exchange Code 999 for Area Code 312 covers the city of Chicago, Cook County in the State of Illinois (IL). It is centered at N 41º 51' 0.12" W 87º 39' 0.19". This Exchange Code was introduced on Friday, 20th August 2010 and is designated as being used for Landline telephones and is assigned to XO Illinois, Inc..
The current time in Chicago is 09:43:55.
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