If you are changing your W number for a new PPS number, you do not need to go through the same application process as everyone else. To get your new number or to be re-instated with your old number contact the Client Identity Section in the Department of Employment Affairs and Social Protection (DEASP). The phone number is (071) 967 2616 or Lo-call 1890 927 999.[quote/]http://www.citizensinformation.ie/en/social_welfare/irish_social_welfare_system/personal_public_service_number.html