Information about all subnets under your account can be exported as an Excel file to a local directory.
This file records the name, ID, VPC, IPv4 CIDR Block,IPv6 CIDR Block, Status, Firewall, Route Table Type and associated route table of each subnet.
in the upper left corner and select the desired region and project.
in the upper left corner and choose Network > Virtual Private Cloud.The Virtual Private Cloud page is displayed.
The Subnets page is displayed.
The system will automatically export information about the subnets as an Excel file to a local directory.