Network address
2a1:4000::
Full
02a1:4000:0000:0000:0000:0000:0000:0000
Prefix length
21
Range
2a1:4000:: - 2a1:47ff:ffff:ffff:ffff:ffff:ffff:ffff
Number of hosts
162,259,276,829,213,363,391,578,010,288,128
Parent subnet
2a1:4000::/20🔍
Previous subnet
2a1:3800::/21🔍
Next subnet
2a1:4800::/21🔍