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Operating and support hours

OMTOS has the following operating and support hours

Operating hours

Access to OMTOS on operating days: 07:00 - 18:00

Support hours

Day of announcement: 08:00 - 18:00
Day of allotment: 07:00 - 16:00
Other operating days: 08:00 - 16:00

OMTOS is integrated into the Bundesbank ExtranNet, and OMTOS operating hours are therefore aligned to ExtraNet's operating hours. During operating hours, you can access the statistical analyses of your bids and allotments for completed auctions.

Our Customer Services team is available to answer your questions about OMTOS on business days during the times stated above. Should any problems regarding OMTOS or ExtraNet arise outside of these stated support hours, please send us an e-mail or phone Customer Services (OMTOS) on the next working day.

Additional information



+49 69 2388-1480

+49 69 2388-1440