You may have noticed that you are receiving calls from the following German number
+49 2405 8043000
This is the primary number used by Zyxel Technical Support for outbound calls, specifically from our support team based in Germany because our Zyxel Support team is centrally managed from Germany. This is a legitimate number, and you may be contacted through it if you have an open support case or inquiry with us.
Regional Variations in Support Numbers
Depending on your region, you might receive calls from different phone numbers other than the German support number. However, it is essential to note that these numbers are only used for outbound calls and may not be used for callbacks. If you need to contact Zyxel Technical Support or request a callback, follow the guidelines outlined for business users.
More information about these processes can be found here.
Zyxel EMEA Support Campus, Germany