ZEVRA › Kennzeichen-Check coverage › UL

Check custom plates with district code UL live: 2 registration offices

With Zevra Kennzeichen-Check businesses check custom plates (Wunschkennzeichen) with the district code UL. The code is issued by 2 registration offices; the page shows the state per office.

Can the custom plate UL be checked live?

Yes. For the registration office Alb-Donau-Kreis the check asks the authority and reports free or taken. Automatic reservation through the API is planned for this office (in preparation).

Yes. For the registration office Stadtkreis Ulm the check asks the authority and reports free or taken. Automatic reservation through the API is planned for this office (in preparation).

Last measurement: 2026-10-12, 09:13 · Kennzeichen-Check status

Which registration offices issue the district code UL?

The district code UL is issued by 2 registration offices. With several offices your system also sends the postal code or the office.

Registration office	Federal state	Codes	Check
Alb-Donau-Kreis	Baden-Württemberg	UL	live check
Stadtkreis Ulm	Baden-Württemberg	UL	live check

How do you check a custom plate UL in your system?

Your system sends one call with district code, letters and digits. The answer says free or taken. Half of the answers arrive in under 4,2 seconds.

curl "https://app.zevra24.de/api/kc/v1/search?prefix=UL&letters=AB&numbers=123" \
  -H "X-WKZ-Key: IHR_SCHLUESSEL"

Integrate the Kennzeichen-Check →

What does the check for UL cost?

The check costs 0,05 € per real answer from the authority, plus the base fee of 50 € per month. To try it there are 100 checks free. When the authority reserves a custom plate, it charges 10,20 € for the plate and 2,60 € for the reservation.

What does the Kennzeichen-Check cost? →

Questions about the custom plate UL

Who is the check intended for?

The Zevra Kennzeichen-Check is for businesses: plate shops, registration services, dealerships and platforms. Private individuals check in the portal of their registration office.

Is a free custom plate UL already allocated?

No. A plate is allocated only at registration. Between check and reservation the combination can be taken.

What does a request without an answer from the authority cost?

Nothing. Only a real answer from the authority is charged: free or taken.

All 404 registration offices

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Try 100 checks for free → All 404 registration offices