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The Número de Soporte and where to find it (Bilbao)

A great many online procedures in Spain demand your número de soporte, and almost no one can find it on first asking. Here is what the reference is and precisely where it sits on each type of document.

Where it is printed

On a TIE card it opens with the letter E followed by a run of digits — for example E01234567 — and is set on the front or reverse of the card.

On the green EU document it is the IXESP / C-number reference. On the older A4 certificate it may appear near the top under the heading "Nº de soporte".

What it is for

It is the field used to confirm your identity on digital channels — Cl@ve, the immigration portal, and a wide range of Basque regional administration sites. Without the correct reference, those online procedures simply cannot be completed.

In Bilbao

Sorting the número de soporte in Bilbao means dealing with Oficina de Extranjería de Bizkaia and its limited appointments. We monitor the system daily and handle the paperwork for residents from Santurtzi and Barakaldo.

Frequently asked questions

Very old A4 certificates predate the field. Some procedures then accept the IXESP/C-number instead; where they do not, a fresh document may be needed. We can confirm which applies to your case.

Yes. It is tied to the physical document, so a renewed TIE carries a new número de soporte even though your underlying NIE stays the same.
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