If your using bridge-domains on IOS-XE then you can check the mac-address table instead:
0 28CD.E00A.41B7 forward dynamic 61 TenGigabitEthernet0/1/0.EFP47
Then check DHCP is you have it running:
#show ip dhcp binding | inc 41b7
192.168.47.54 28cd.e00a.41b7 Infinite Manual Selecting Unknown
This is the closest I can get to a 'show ip arp *'.