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
|