<P> Area code 917 is an area code for all five boroughs of New York City (The Bronx, Brooklyn, Manhattan, Queens, and Staten Island). It was the first cellular / pager / voicemail area code for the city and is an overlay to Manhattan's 212 / 646 / 332 and the other four boroughs' 718 / 347 / 929 . Occasionally, 917 is also assigned to landlines, most commonly in Manhattan, in large part because of the particularly severe shortage of numbers there . </P> <P> Introduced on February 4, 1992, area code 917 is the first overlay area code in the North American Numbering Plan . When it was established, all cellphones in New York City were switched to 917, freeing up telephone numbers for additional landlines . </P>

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