Zaragoza
TGSS – 50/01 – Zaragoza
Avenida Madrid 24, 50010 Zaragoza
Start online if you can, and phone the national Social Security line to confirm which office serves your address.
For Importass prepare DNI/NIE details, usual address, mobile and email. Without a NUSS (social security number) you cannot identify by SMS. The route without Cl@ve/certificate asks for document images and a selfie; emancipated minors also provide emancipation evidence. For a child prepare the parent/guardian’s details, selfie and ID, TA.1 with the child’s details, the child’s ID and family/guardianship evidence. For a counter request prepare signed TA.1 and the applicable identity document; the general procedure accepts a foreigner card or passport, but an adult with only a passport may not be able to use the online route. If a number is already assigned, use Importass “Acreditación del Número de la Seguridad Social” to consult it and download proof of your existing NUSS/NAF instead of requesting another number. An existing number may come from earlier work or school insurance. This proof identifies the number; it does not certify current employment registration or entitlement to a particular benefit.