terraform.aws-baseline-infra/layers/networking/base-network-experimental/main.tf

data aws_availability_zones available-az {
  state = "available"
}

module "subnet_addrs" {
  source = "hashicorp/subnets/cidr"

  base_cidr_block = "10.0.0.0/16"

  networks = [
    for az in data.aws_availability_zones.available-az.names :
    {
      name     = az
      new_bits = 8
    }
  ]
}

output module-output {
  value = values(module.subnet_addrs.network_cidr_blocks)
}