Please check the content mentioned above.
There is no change to the above-mentioned address.
詳細は上記の通りです。
The details are as stated above.
上記の通り、会議は延期されました。
As stated above, the meeting has been postponed.
上記 refers to something written above on the same page, whereas 前記 can point back to anything stated earlier in the document.
the following; mentioned below
Compound of 上 (じょう, 'above') and 記 (き, 'record' or 'note'), literally meaning 'recorded above'.