Network address
ff:ffff:ffff:ff21::
Full
00ff:ffff:ffff:ff21:0000:0000:0000:0000
Prefix length
66
Range
ff:ffff:ffff:ff21:: - ff:ffff:ffff:ff21:3fff:ffff:ffff:ffff
Number of hosts
4,611,686,018,427,387,904
Parent subnet
ff:ffff:ffff:ff21::/65🔍
Previous subnet
ff:ffff:ffff:ff20:c000::/66🔍
Next subnet
ff:ffff:ffff:ff21:4000::/66🔍