The switch from IPv4 to IPv6 is still going on, but it is happening slowly as we move further into 2025. Most global networks, businesses, and hosting companies still rely heavily on IPv4, even though they have known about it for years. IPv6 has almost unlimited address space, but the full migration is far from finished. A lot of businesses are now asking themselves, “Do you still need IPv4 in 2025?”
Most businesses would say yes. IPv4 is still important for making sure things work together, are easy to get to, and keep running. Let’s look into why this is happening and how businesses are able to use both address systems effectively.
Getting to know IPv4 and IPv6
Since the 1980s, IPv4 (Internet Protocol version 4) has been the internet’s main protocol. It uses a 32-bit system that gives it about 4.3 billion unique addresses. This number seemed impossible to imagine decades ago, but it has long since run out.
IPv6 (Internet Protocol version 6), which came out in the late 1990s, added a lot more addresses by using a 128-bit system. This made it possible to have 340 undecillion addresses (a number followed by 36 zeros). IPv6 not only gives you more space, but it also makes routing more efficient, supports better security through IPSec, and makes it easier to set up networks.
IPv6 adoption has been slow, even though these benefits exist. Full implementation has been put off in many industries because of legacy systems, software that doesn’t work with other software, and the high cost of infrastructure.
Why IPv4 Is Still Useful in 2025
IPv4 is still important for a number of reasons, even though IPv6 is becoming more popular.
- Compatibility: A lot of websites, apps, and IoT devices still only work with IPv4. It will be years before all platforms are fully compatible with IPv6.
- Business Continuity: Companies can’t afford to have service interruptions during migration. Keeping both IPv4 and IPv6 running at the same time makes sure that connections stay stable.
- Market Accessibility: IPv4 is still the universal “language” of the internet because IPv6 hasn’t been widely used in some areas and networks.
- Operational Simplicity: IPv4 is easier for network administrators to work with, and a lot of monitoring and security tools still depend on it.
These facts show that IPv4 is not only an old system, but also a needed step toward an IPv6 future.
What IPv4Hub.net Is
IPv4Hub.net fills the gap between the lack of IPv4 addresses and the needs of modern businesses around the world. The platform links verified buyers and lessors from all over the world, giving them safe IPv4 leasing options with clear prices. IPv4Hub.net has clean, ready-to-use IP addresses for your business, whether you need a /24, /23, or /22 block. They come with SWIP, LOA, and ROA documentation. Their experienced team makes sure that approvals are quick, that all major registries are followed, and that you get help setting things up. This makes getting an IP address easy, scalable, and stress-free.
The best way to deploy is with a dual-stack.
Most modern networks now use both IPv4 and IPv6 at the same time. This setup lets systems talk to each other using either protocol, depending on what the destination can handle.
Dual-stack deployment makes sure that:
- IPv4-only and IPv6-only networks can talk to each other without any problems.
- Moving slowly so that users and services aren’t affected.
- There is room for growth in the future as IPv6 use grows.
Running dual-stack can temporarily double the amount of work that needs to be done by administrators, but it is currently the most reliable way to keep global connectivity.
The Cost Factor: IPv4 Leasing as a Smart Move
IPv4 addresses are hard to find and expensive to buy, so leasing IPv4 blocks has become a popular option. Leasing lets businesses get IP resources quickly without having to spend a lot of money up front. It’s also flexible, which makes it great for businesses with short-term projects, data centers that are growing, or demand that changes.
IPv4Hub.net and other providers make leasing affordable by offering different block sizes, monthly or yearly terms, and professional routing support. Leasing lets you keep working today while you get ready to switch to IPv6 tomorrow.
The Future of IPv6 Migration
More than 45% of the world will be using IPv6 by 2025, but full migration is still years away. Big tech companies like Google, AWS, and Microsoft are still in charge, but millions of smaller networks still only use IPv4.
In the next ten years, coexistence is more likely than replacement. IPv6 will keep growing, but IPv4 will still be the default for compatibility with older systems and interoperability. Smart businesses are getting ready for this mixed reality by making the most of IPv4 while also building networks that can handle IPv6.
IPv6 is the future of internet addressing, but IPv4 will still be needed in 2025. It is a key part of global connectivity today because it is everywhere, stable, and works with everything.
Having access to IPv4 is a must if you want to grow your network, start a new service, or scale your cloud infrastructure. IPv4Hub.net’s leasing service keeps you connected, compliant, and cost-effective while the world moves to IPv6 at its own pace.