What does an entry like li674-***.member mean in the last log?

Question

ubuntu

Greetings!
In the logs, last found an entry under an existing account, but with a zero session time,
and with an entry in place of the li674-***.member IP address, while the /usr/bin/id command was executed.
for the entire existence of the server today this happened for the first time.
What does this mean and why is this entry in place of the IP address?