Hi all,
if I go in Winbox IP/ARP List I can see among other things a column "Host Name".
If I use the cli or
"Host name" is not shown. How can I achieve this?

I think it retrieves the host from active hostnames in leases of the DHCP server by matching the MAC.

I think that's right: hostname ONLY comes from a DHCP server.

But OP is right... it ONLY shown in winbox, and seemingly not available in CLI via "print proplist=" or even in a ":put [/ip/arp/get [find ...]]"