CIDR calculator
Firewall rules, VPC ranges, and “is this host in the subnet?” IPv4 only.
1,022 usable hosts.
- Network CIDR
- 10.20.0.0/22
- Address
- 10.20.0.14
- Subnet mask
- 255.255.252.0
- Wildcard
- 0.0.3.255
- Network
- 10.20.0.0
- Broadcast
- 10.20.3.255
- First host
- 10.20.0.1
- Last host
- 10.20.3.254
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