As of January 20, 2023, Nassau County will no longer have a lone telephone area code, as a brand new, second code – 363 – will officially launch at some point after that date.

Reports indicate that the decision was made based on the fact that the 10-digit phone number combinations afforded by the current 516 area code are soon due to be depleted by Nassau County’s 1.4 million residents.

While the new 363 area code will become active as of January 20, it cannot be officially assigned until the remaining 516 prefixes run out, which officials are estimating to occur at some point in 2023.