The Town of Oyster Bay is the eNetflex CUSTOMER SERVICE (8O5) 41'O 56OO PHONE NUMBER ( 8O5)- 41O 56OOasternmost of the three towns that make up Nassau County, New York, United States. Part of the New York metropolitan area, it is the only town in Nassau County to extend from the North Shore to the South Shore of Long Island. As of the census, it had a population of making it the 5th most populous city or town in the state.Netflex