I'm not sure I understand your question correctly
a switchport operates at Layer-2 (not Layer-3) and as such a switchport has "no knowledge" about IP-addresses.
you can use "show mac address-table interface <interfacename>" to see MAC adresses
you can use "show ip interfaces brief" to show adresses configured on this switch
you can use "show users" to see information about users that are connected to the management address of this switch.
