The online test results announcement for the JLPT December paper will be available for viewing soon from this coming Monday, Jan 23, 2023 (10 am) until Friday, Mar 31, 2023 (5pm) Japan time.
For more information regarding the announcement, how to retrieve the result and inquiries regarding the online result, please refer to JLSM at:
https://www.jlsm.org/jlpt.html