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[ Sell IPv4 · No Win, No Fee ]

Sell IPv4 addresses,
no win, no fee.

The IPv4 free pool ran dry years ago. IPv6 was supposed to fix that, and someday it might, but companies still need v4 space to grow today. Which is why a block your company forgot it owned could be worth real money. Sellers have had the better end of this market for a long while now.

Get a free valuation → See market data

[ Selling IPv4 ]

Looking to sell IPv4?

Demand for IPv4 hasn't cooled off. Supply keeps shrinking while buyers keep showing up, so a block that spent the last decade gathering dust on somebody's spreadsheet has quietly turned into an asset. Curious what yours would fetch? Our market data shows where pricing sits right now.

On fees, we keep it simple. Commission is 3 to 8% of the sale, and the smaller the block, the higher the rate. You pay nothing upfront, the buyer pays us nothing ever, and before you sign a single page you'll know your exact number. No surprises at closing. We hate those as much as you do.

Prefixx is a registered broker with RIPE NCC, APNIC and ARIN. That registration matters because it means we work inside each registry's transfer process rather than around it. Finding a qualified buyer, drafting the agreements, the RIR back-and-forth, legacy block recovery, escrow. All of it lands on our desk, not yours.

And if you're not ready to sell? Then don't. Lease the space instead and collect rent on it while you keep ownership. Talk to us and we'll walk through both routes with you.

Buyers worldwide

Our buyer network spans the globe, though the bulk of it sits in the U.S. and Europe. What are they hunting for? Mostly blocks between a /24 and a /16.

White-glove service

Prefer to hand the whole thing off? Our team runs the diligence, the purchase agreements and the escrow, and keeps you posted at every step.

Secure payments

Funds sit in escrow for the whole transaction. Nothing moves at the registry until the money is secured in full.

[ IPv4 Divestment Process ]

Know where your space stands.

Most sellers who come to us have been sitting on the space for years. Sometimes it arrived through a merger nobody fully untangled. Sometimes it was over-provisioned back when registries handed addresses out freely and nobody thought twice about a spare /16. Either way, the first job is figuring out what state your registration is actually in, and whether the space can transfer at all. We've written up the basics for each scenario below, because sellers who show up prepared close faster.

ARIN

What ARIN asks of sellers, and how its transfer process runs.

ARIN guide →

APNIC

Our notes on selling space registered in the APNIC region.

APNIC guide →

RIPE NCC

Selling RIPE NCC space? Start with these guidelines.

RIPE guide →

Inter-RIR

Selling across registry boundaries: inter-RIR transfer scenarios.

Inter-RIR guide →

Our Standard of Excellence

We'll help you tick the boxes.

Buying or divesting, our team stays beside you for every step. Tixx by Prefixx is the standard we hold ourselves to on every single deal. Have a look at what it covers.

✓ Free market valuation ✓ Escrow-secured payment ✓ Legacy block recovery ✓ RIR paperwork handled

Tixx by Prefixx →

[ White-Glove Service ]

It is all in the details.

Small details sink deals. That part matters more than people think. We handle geo-location correction, abuse complaint processing, reverse DNS and the rest of the housekeeping that keeps a block worth selling.

Service details →

[ Est. 2018 · Why Prefixx ]

Why companies choose Prefixx.

We're hands-on IPv4 specialists, not a listing site. The team behind Prefixx has been in the data center and networking business since 2007, and it shows. You deal directly with senior consultants who've seen the technical, legal and financial side of these transactions up close, not an account manager reading from a script.

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.

Schedule a free consultation →

[ FAQ ]

Selling IPv4: common questions

Honestly, it depends on the block. Size moves the number. So do region and reputation, and the market itself drifts month to month. Send us the details and we'll put a free valuation together, no strings on it.

Between 3 and 8% of the transaction value. A /16 or larger sits at 3%, mid-size blocks from /17 to /19 at 5%, and anything from /20 down to /24 at 8%. The buyer pays us nothing at all. You'll see your exact figure in writing before anything gets signed.

Finding a buyer usually takes somewhere between one and four weeks, depending on the size and what you're asking for it. After that the registry does its part. RIPE often wraps up inside two weeks, while ARIN and APNIC tend to run two to four. We push the buyer-matching side as hard as we can. The RIR clock, though, is the RIR clock.

Yes, and we handle legacy blocks often. These are allocations that predate the RIR system, so expect a few extra steps: signing a Registration Services Agreement (RSA) with ARIN, say, or straightening out organizational records that haven't been touched in twenty years. Legacy recovery is a specialty of ours.

Lease it. The space earns recurring revenue while ownership stays with you, on short or long terms, whichever suits. Learn more about leasing.

Every dollar goes into third-party escrow before a transfer starts. You get paid once the RIR confirms the block has landed with the buyer. Not before, and never on a promise.

[ Insights ]