The New York State Public Service Commission originally announced last year that they would introduce the "465" area code that will serve the Bronx, Brooklyn, Queens, Staten Island and the Marble Hill section of New York City.
Residential, business and wireless customers within the existing area codes are the ones given the new code that went into effect on Thursday.
"With increased telephone usage, we must accommodate the growing demand for phone numbers," said NYS Public Service Commission Chair Rory M. Christian when the new code was first announced.
Last year, the NYS Public Service Commission approved an overlay area code to be added to the current 347/718/917/929 area codes region that serves portions of the New York City metropolitan area.
Existing customers in the region are not impacted by the new overlay area code, the commission added.
The "465" area code is projected to provide telephone numbers for approximately 11 years.
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