Network switches don’t have IP addresses which normal network users would need to know. The IP address is only used to manage the network switch. Even if you had the IP address of the network switch you won’t have access to log onto the operating system of the network switch.
Without knowing the IP address you would need to check all the IPs on the network.
If the network is setup correctly that management IP of the network will be a different IP than the IP range which the users on the LAN use.