Which CIDR Blocks Are Available for the VPC Service?ΒΆ
The following table lists the private CIDR blocks that you can specify when creating a VPC. Consider the following when selecting a VPC CIDR block:
Number of IP addresses: Reserve sufficient IP addresses in case of business growth.
IP address range: Avoid IP address conflicts if you need to connect a VPC to an on-premises data center or connect two VPCs.
The VPC service supports the following CIDR blocks:
VPC CIDR Block |
IP Address Range |
Maximum Number of IP Addresses |
|---|---|---|
10.0.0.0/8-24 |
10.0.0.0-10.255.255.255 |
2^24-2=16777214 |
172.16.0.0/12-24 |
172.16.0.0-172.31.255.255 |
2^20-2=1048574 |
192.168.0.0/16-24 |
192.168.0.0-192.168.255.255 |
2^16-2=65534 |