Man pages matching name telnetlogin in section 8:

telnetlogin.8.ja	debian 10 / manpages-ja
telnetlogin.8.en	debian 10 / telnetd
telnetlogin.8.ja	debian 11 / manpages-ja
telnetlogin.8.en	debian 11 / telnetd
telnetlogin.8.en	debian 11 / telnetd-ssl
telnetlogin.8.ja	debian 12 / manpages-ja
telnetlogin.8.en	debian 12 / telnetd-ssl