New Nassau County Area Code Assignments Begin 2nd Quarter of 2023
ALBANY — The New York State Public Service Commission (Commission) today announced that residential, business and wireless customers within the existing 516 Nassau County area code region should begin to prepare for the introduction of the new 363 area code, beginning the second quarter of 2023.
To meet the increasing demand for residential and business phone numbers in Nassau County, the Commission, on January 20, 2022, approved a new area code to be added to the current 516 area code serving Nassau County.
Beginning the second quarter of 2023, customers in the existing 516 area code requesting new service, an additional line, or a move in the location of their service, may be assigned a number in the new 363 area code.
Existing customers in the 516 area code that serves Nassau County will not be affected by the new overlay area code. An overlay area code is the most effective possible use of numbering resources in Nassau County and results in long-term relief, with the least expense, and the least amount of disruption and frustration to consumers as possible.
Customers will retain their current telephone numbers, and 10-digit dialing for local calls will continue.
The overlay area code will be assigned to newly issued telephone numbers in Nassau County once all existing 516 telephone numbers are exhausted, and will apply to all telephone numbers, regardless of service type. The new area code is projected to provide telephone number relief in Nassau County for approximately 49 years.
