Sell IPv4 addresses

With IPv4 address supply depleted, and slow adoption of the IPv6 address protocol, companies are still relying on the utilization of IPv4 address space to support their growth. If your company has unused IPv4 address blocks, now may be the right time to sell.

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Buyers
worldwide

Prefixx works with buyers from all around the world, with a strong customer base in the U.S. and Europe. Our buyers primarily look for blocks ranging from /24 to /16

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White-Glove
Service

Step-by-step guidance and assistance is available. Let our team take care of your IPv4 diligence process, purchase agreements and escrow. Our goal is to provide a seamless customer experience.

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Secure
payments

Your funds will be safely held in an escrow for the duration of the process. All funds will be secured in full prior to the start of any transfer.

Looking to sell IPv4?

The IPv4 seller's market remains strong, with demand continuing to grow as available supply decreases. If you have unused IPv4 address blocks, now is an excellent time to monetize them. See our market data for current pricing trends.

Prefixx charges a commission of just 3–8% on completed sales, depending on block size. There are no upfront costs and the buyer never pays any Prefixx service fees. You will always know the exact commission before signing any agreement.

As a registered broker with RIPE NCC, APNIC and ARIN, we handle the entire process — from finding qualified buyers and preparing the paperwork, to managing RIR correspondence, legacy block recovery and escrow.

Not ready to sell? Leasing your IPv4 space is a great way to generate recurring revenue while retaining ownership. Contact us to discuss your options.

Get a free valuation
Est. 2018

Why companies choose Prefixx

We're not just brokers — we're hands-on IPv4 specialists with a team that's been in the data center and networking industry since 2007. Our boutique approach means you work directly with senior consultants who understand the technical, legal, and financial complexities of every transaction.

Zero hidden fees Transparent pricing, no win — no fee
Multi-regional expertise ARIN, RIPE NCC & APNIC registered. LACNIC facilitated
Full-service diligence Blacklist scans, reputation & escrow
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IPv4 Divestment Process

More often than not, companies that find themselves looking to sell IPv4 space have had unused space available to them for many years. In some cases due to mergers and acquisitions, in others simply due to excess inventory. Understanding the current status of your IPv4 address space and its eligibility for transfer is an important first step during any IPv4 divestment process. Be prepared; Prefixx has published basic guidelines and information about the IPv4 transfer process for the following scenarios:

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  • RIPE NCC logo
  • Inter-RIR logo
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Our Standard of Excellence

Our team will assist you with every step in purchasing of or divesting of IPv4 address space. Take a look at our standard of excellence to learn more about our process and some of the benefits of working with Prefixx.

We'll help you tick the boxes!

Tixx by Prefixx

White-Glove Service

It is all in the details! The Prefixx experience will help you secure the missing pieces on your IPv4 journey. Our team offers geo location correction services, abuse complaint processing, reverse DNS and more. Find out more about our White-Glove Services:

Service Details
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Frequently Asked Questions

How much are my IPv4 addresses worth?

IPv4 address pricing is driven by supply and demand. Block size, region, and IP reputation all affect valuation. Contact Prefixx for a free, no-obligation market valuation of your IPv4 assets.

What does Prefixx charge to sell IPv4?

Prefixx charges a commission of 3–8% on the transaction value, depending on block size. There are no hidden fees and the buyer does not pay any Prefixx service fees. You will always know the exact fee before any agreement is signed.

How long does it take to sell IPv4 addresses?

Finding a buyer typically takes 1-4 weeks depending on block size and pricing. The RIR transfer process adds another 1-6 weeks depending on the registry. Prefixx works to match sellers with qualified buyers as quickly as possible.

Can I sell legacy IPv4 addresses?

Yes. Legacy IPv4 blocks (those assigned before the RIR system was established) can be sold. However, additional steps may be required, such as signing a Registration Services Agreement (RSA) with ARIN or establishing proper organizational records. Prefixx specializes in legacy block recovery and transfers.

What if I'm not ready to sell yet?

If you are not ready to sell, leasing your unused IPv4 space is a great way to generate revenue while retaining ownership. Prefixx offers both short-term and long-term leasing options. Learn more about leasing.

How is the payment process secured?

All funds are secured in a third-party escrow account before any transfer begins. Payment is only released to the seller once the RIR confirms that the IPv4 block has been successfully transferred to the buyer.

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