Network address
100:1800::
Full
0100:1800:0000:0000:0000:0000:0000:0000
Prefix length
21
Range
100:1800:: - 100:1fff:ffff:ffff:ffff:ffff:ffff:ffff
Number of hosts
162,259,276,829,213,363,391,578,010,288,128
Parent subnet
100:1000::/20🔍
Previous subnet
100:1000::/21🔍
Next subnet
100:2000::/21🔍