Network address
1b:2800::
Full
001b:2800:0000:0000:0000:0000:0000:0000
Prefix length
21
Range
1b:2800:: - 1b:2fff:ffff:ffff:ffff:ffff:ffff:ffff
Number of hosts
162,259,276,829,213,363,391,578,010,288,128
Parent subnet
1b:2000::/20🔍
Previous subnet
1b:2000::/21🔍
Next subnet
1b:3000::/21🔍