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Subnet details 138.81.0.0/21

Network address 138.81.0.0
Prefix length 21 (255.255.248.0)
Range 138.81.0.0 - 138.81.7.255
Hexadecimal 8a510000
Binary 10001010 01010001 00000000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 138.81.0.0/20🔍
Previous subnet 138.80.248.0/21🔍
Next subnet 138.81.8.0/21🔍

Subnet tree

Netblock 138.0.0.0/8🔍 ERX-NETBLOCK (AU)
Route 138.81.0.0/16🔍 AS3303 SWISSCOM Swisscom Switzerland Ltd (CH)🔍
Netblock 138.81.0.0/16🔍 ISO-CS (CH)