Network address
2a01:1800::
Full
2a01:1800:0000:0000:0000:0000:0000:0000
Prefix length
21
Range
2a01:1800:: - 2a01:1fff:ffff:ffff:ffff:ffff:ffff:ffff
Number of hosts
162,259,276,829,213,363,391,578,010,288,128
Parent subnet
2a01:1000::/20🔍
Previous subnet
2a01:1000::/21🔍
Next subnet
2a01:2000::/21🔍