Why AWS Is Charging for Public IPv4 Addresses – What It Means for You

Scarcity makes things valuable, even for cloud giants.

AWS Announces IPv4 Pricing

Jeff Barr, AWS chief evangelist, announced that starting February 1, 2024, all public IPv4 addresses will be billed at $0.005 per IP per hour, regardless of whether they are attached to a service.

Why IPv4 Is Scarce

Four years ago the 4.2 billion IPv4 addresses were fully allocated. IPv4, a 32‑bit protocol, has powered the internet for decades, but the explosion of smartphones, PCs, and IoT devices has consumed nearly all available addresses. In 2019 RIPE NCC declared IPv4 exhaustion, meaning no new blocks can be assigned to ISPs.

Although the address space is exhausted, organizations can still obtain IPv4 addresses through reclaimed or unused blocks, often from defunct companies or migrations to IPv6.

Impact on Users

Acquiring IPv4 has become costly, with prices rising over 300 % in the past five years. AWS’s pricing aims to offset its own costs and encourage frugal use of IPv4 while accelerating IPv6 adoption.

The hourly fee translates to about $43.80 per year per address; multiple addresses quickly become a significant expense. BYOIP (bring‑your‑own‑IP) customers are exempt, and AWS offers a free tier for EC2 that includes 750 hours of public IPv4 usage per month for the first 12 months.

AWS also released a public IP insights tool ( https://docs.aws.amazon.com/vpc/latest/ipam/what-it-is-ipam.html ) to help users monitor and optimize their IPv4 usage.

IPv6 Adoption and Challenges

IPv6, introduced over a decade ago, provides 2^128 addresses (about 3.4×10^38) and offers performance, security, and routing benefits. However, IPv4 and IPv6 are not interoperable, and migration can be complex, leading to slow adoption.

Despite IPv4 exhaustion, IPv4 routing table entries remain six times larger than IPv6. Google data shows over 42 % of users now access the internet via IPv6, but RIPE NCC predicts it may take 5–10 years to fully retire IPv4.

Community Reactions

Some users support AWS’s pricing as a logical response to scarcity, while others highlight ongoing challenges with IPv6 deployment, such as ecosystem readiness and tooling gaps.

Comments from the community illustrate both acceptance of the new costs and frustration with IPv6’s current limitations.

For the full original article, see https://blog.csdn.net/csdnsevenn/article/details/132074026 .