Network address
2a03:1b21:4::
Full
2a03:1b21:0004:0000:0000:0000:0000:0000
Prefix length
48
Range
2a03:1b21:4:: - 2a03:1b21:4:ffff:ffff:ffff:ffff:ffff
Number of hosts
1,208,925,819,614,629,174,706,176
Parent subnet
2a03:1b21:4::/47🔍
Previous subnet
2a03:1b21:3::/48🔍
Next subnet
2a03:1b21:5::/48🔍