As of February 1, 2024, AWS will implement a $0.005 per IP per hour charge for all public IPv4 addresses, excluding Bring Your Own IPs (BYOIP). This change will result in an increased cost of operations and a need for closer budget management for AWS customers.

Optimizing Public IPv4 Usage in AWS Services

  • Amazon EC2

    • Disable auto-assignment of public IPv4 addresses and use Amazon EC2 Instance Connect for secure instance access.

  • Amazon Elastic Load Balancing and AWS Global Accelerator

    • Manage inbound internet traffic to optimize public IPv4 utilization.

  • Virtual Private Cloud (VPC)

    • Prioritize private subnet usage, use VPN for remote access, and implement NAT gateway for secure internet access.

  • Amazon RDS and Amazon OpenSearch

    • Place database instances in private subnets to increase security and reduce the need for public IPs.

  • Cross-account Resource Access

    • Utilize VPC Peering, AWS Transit Gateways, and AWS Resource Access Manager to efficiently manage resources across accounts and limit public IPv4 usage.