How to Sell Your IPv4 Address Block: The Complete Guide

The IPv4 market looks very different in 2026 than it did at its peak. Prices have corrected sharply - clean blocks that commanded premium rates at the 2021-2022 high now change hands for a fraction of that. If you are sitting on space you want to sell, that sounds like bad news. It isn't, entirely. Buyer demand is steady, the transfer market is liquid, and well-documented blocks still move quickly. What has changed is that the easy-windfall era is over. Getting a fair price now depends on doing the preparation properly.

This guide walks through the full process of selling an IPv4 block in 2026 - how to value your space, how to prepare it for a registry transfer, how buyer screening works, and how a sale actually closes. It also asks a question worth sitting with before you commit: should you sell at all, or would leasing the same block earn you more over time? For a lot of owners, the honest answer is leasing. We will get to the math.

Is Now a Good Time to Sell?

The short version: it is a reasonable time to sell a clean block, but it is no longer a seller's-dream market.

Prices have settled into a steadier band after the post-exhaustion spike. In the RIPE region, clean blocks currently trade at roughly $12-15 per IP for a permanent sale. Demand hasn't gone away - registries exhausted their free IPv4 pools years ago, so every address now comes from the transfer market, and buyers still need space. What buyers have become is more selective. A clean, well-documented block sells at a fair price. A block with reputation problems or stale registry records either sells at a discount or sits.

Before you decide, frame the real choice. Selling is a lump sum - one payment, full transfer, the asset leaves your portfolio. Leasing is recurring income - roughly $0.30-0.35 per IP per month while you keep ownership. At current rates, leasing returns the equivalent of a sale in about three to four years, and then keeps paying. Whether that trade-off favors selling depends entirely on your time horizon and your need for capital now.

We compare the two paths in depth in our sell vs lease analysis, and you can model your own block both ways in the IPv4 pricing calculator. Run those numbers before you commit to selling - the section near the end of this guide explains why so many owners change their minds.

A managed IPv4 leasing marketplace for holders

Monetize IPv4 Without Selling the Asset

Monetize your IPv4

Step 1 - Determine Your Block's Value

Two blocks of the same size can be worth meaningfully different amounts. Four factors drive the difference.

Block size. Larger contiguous blocks generally command a slightly higher per-IP price because they are easier for buyers to route and harder to find. A clean /22 is more liquid than four scattered /24s totalling the same count. Very large blocks (a /16 and up) attract institutional buyers and trade in a more negotiated, case-by-case way rather than at a fixed list price.

Registry region. Price varies by registry. RIPE and ARIN space tends to sell at the higher end; APNIC and other regions can differ. Buyers also care whether the block can be transferred into their region, since inter-registry transfers carry extra conditions. Where your space is registered affects both price and the pool of eligible buyers.

Reputation history. This is the factor owners most often underestimate. Buyers and brokers check your block against major blacklists before they will touch it. Active listings on Spamhaus, Barracuda, or similar databases - or a recent abuse history - drag the price down or kill the deal. Run your space through the blacklists yourself first; our guide to checking whether your IPv4 is blacklisted covers which databases matter and how delisting works. A clean reputation is worth real money at sale time.

Routing readiness. Up-to-date registry objects and a clean RPKI status signal a block that a buyer can deploy without friction. An invalid Route Origin Authorization left over from a previous setup, or stale route objects pointing at an ASN you no longer work with, are red flags that experienced buyers price in.

Typical sale values by block size at current RIPE-region rates ($12-15/IP):

Larger blocks scale roughly linearly on a per-IP basis, though a /16 (65,536 IPs) and above are usually negotiated individually rather than sold off a price sheet. For an exact figure on your specific block, use the pricing calculator.

Step 2 - Prepare for the Transfer

A sale only completes when the registry updates the record to the buyer's organization. That registry transfer is the part owners are least prepared for, and the part most likely to introduce delays.

Each Regional Internet Registry has its own transfer rules. The essentials:

RIPE NCC. Transfers run through the RIPE portal, with both parties submitting requests. The key constraint to know: a block received via transfer cannot be transferred again for 24 months. If you acquired your space recently, you may be inside that window and unable to sell yet - though, importantly, you can still lease it during the hold period. RIPE's current rules are on the RIPE transfer policy page.

ARIN. ARIN applies more due diligence than RIPE. Recipients generally have to justify their need for the space (often via an officer attestation), and transferred blocks carry their own hold period before they can move again. Expect more documentation and a longer review. See ARIN's transfer resources.

APNIC. APNIC supports both intra-region and inter-region transfers, with its own conditions on holding periods and recipient eligibility. Details are on APNIC's transfer page.

Across all three, you will need the same groundwork before a transfer can proceed: accurate registry objects (organization name, admin and tech contacts, a monitored abuse contact), working maintainer access so changes can actually be made, and resolved routing - withdrawn BGP announcements and a clean RPKI status. If you lost your maintainer credentials years ago on a dormant block, recover them early; the formal recovery process takes time and will stall everything else.

Common pitfalls that delay transfers: an entity name on the block that no longer matches your current legal name, contacts that bounce, an invalid ROA from a previous operator, or a block still inside its hold period. None of these are hard to fix - they just need to be handled before you list, not after a buyer is waiting.

The mechanics of each registry's transfer workflow are involved enough to deserve their own walkthrough. For the full step-by-step on RIR transfers, see our IPv4 transfer process guide.

Step 3 - Screen Your Buyers

Selling IPv4 is not like selling a used laptop, where you hand it over and forget it. Who you sell to matters - sometimes after the sale is done.

The first risk is abuse and blacklisting. If a buyer intends to use your former space for spam, fraud, or other abuse, that activity can sour the reputation of adjacent blocks you still hold, since reputation systems evaluate whole subnets. The second risk is payment and execution - an unverified buyer who can't complete the registry transfer, or who disputes the deal partway through, costs you weeks. The third is regulatory: you want confidence that the counterparty is a legitimate organization and that the transfer is clean on both sides.

This is the part of selling that genuinely benefits from a broker rather than a do-it-yourself listing. Buyer screening and due diligence are not self-serve tasks - they require vetting the counterparty, confirming their registry eligibility, and verifying funds. The IPbnb broker team handles this end of the sale directly: identifying qualified buyers, running due diligence, and filtering out the counterparties you don't want your space ending up with. You are not posting your block to an open marketplace and hoping for the best.

Step 4 - Complete the Sale

Once a vetted buyer is in place, a sale comes down to three things: a contract, escrow, and the registry transfer itself.

A proper sale agreement sets the price, the transfer timeline, and what each party is responsible for. Escrow protects both sides - funds are held until the registry record actually updates to the buyer, so neither party is exposed if something stalls. The transfer is then executed through the relevant registry, and payment is released on completion. A clean RIPE-region transfer typically takes two to four weeks from signed agreement to a finalized record, depending on documentation readiness and registry workload; ARIN can run longer.

On the IPbnb side, the broker team manages this whole sequence. As the owner, your active role is essentially signing the Letter of Authorization and the sale agreement - the contract drafting, escrow setup, buyer coordination, and registry paperwork are handled for you. That said, this guide is not legal or tax advice: review the sale agreement with your own legal team, and confirm the tax treatment of the proceeds with your accountant before you sign.

Sell vs Lease - Think Twice

This is the section to read slowly, because it is where a lot of owners change their plan.

A sale is a single payment. At today's $12-15 per IP, a /24 (256 addresses) sells once for roughly $3,000-3,800, and then it is gone. Leasing the same /24 at $0.30-0.35 per IP per month earns roughly $77-90 every month - about $922-1,075 a year - while you keep the asset. That is an annual return of roughly 24-35% on the equivalent sale value, paid recurringly, for an asset you still own and can sell later.

Run it across sizes and the ratio holds:

In every case, leasing recovers the full sale value in roughly three to four years - and then keeps paying, indefinitely, while you still hold an appreciating asset. If you sell, year four onward earns you nothing further; if you lease, year four onward is pure additional income on top of having already recouped what a sale would have paid.

So selling makes clear sense in a few situations: you need the capital now, you are winding down operations, or the block is fully idle and you simply want it off the books. Outside of those, leasing usually wins on the numbers - and it preserves your option to sell later, potentially at a better price. You are not choosing between income and ownership; with leasing you keep both.

We break the comparison down in full - including liquidity, tax framing, and longer hold periods - in the dedicated sell vs lease guide. If you are even slightly undecided, model your block both ways before you list it for sale.

Common Mistakes When Selling IPv4

1. Selling below market. Accepting the first offer without checking current per-IP rates is the most expensive mistake. Price your block against the live market first - the calculator gives you a reference number to negotiate from.

2. Not cleaning blacklists first. Active blacklist entries depress your price or scare off serious buyers. Resolve them before you list, not after a buyer raises a flag. Start with our blacklist check guide.

3. Ignoring tax implications. A sale is a taxable event, and the treatment varies by jurisdiction and how the asset was carried on your books. Don't find this out after closing - consult your accountant before you sign.

4. Not considering the lease alternative. Owners who sell on autopilot frequently leave years of recurring income on the table. Always run the lease math before committing to a one-time sale.

5. No escrow protection. Transferring registry rights before funds are secured - or paying before the record updates - exposes you on a deal that can take weeks. Use escrow, every time.

Is Your Block Ready to Sell? Checklist

Before you list a block for sale, confirm each item:

• Reputation checked - no active entries on Spamhaus, Barracuda, AbuseIPDB, or other major blacklists; historical entries reviewed

• Registry objects current - organization name, admin-c, tech-c, and abuse contact accurate and monitored

• Maintainer access confirmed - you can log into the registry portal and make changes

• Routing clean - no stale route objects, no active BGP announcements left to withdraw, no invalid ROA

• Hold period verified - the block is outside any registry transfer restriction (24 months for RIPE-transferred space)

• Valuation done - you know your block's current market value and won't sell blind

• Tax and legal reviewed - you understand the tax treatment and have your sale agreement ready for legal review

A block that clears all seven moves through a transfer in weeks rather than stalling at the first piece of missing documentation.

Still Deciding?

Not sure selling is right? Try leasing first - $0.30-0.35 per IP per month, no long-term commitment, and you keep ownership. Start monetizing your IPv4 space →

Ready to sell? Our broker team handles the full transfer - valuation, buyer screening, escrow, and registry paperwork. You sign the LOA; we manage the rest. Talk to the team →

Clean IPv4, ready to deploy

Lease Clean IPv4 Fast With Zero Platform Fees

Start leasing

Frequently Asked Questions

How do I sell my IP address block?

Value the block against current market rates, clean its reputation and registry records, find a vetted buyer, then complete the transfer through your Regional Internet Registry with escrow protecting both sides. A broker can manage the buyer screening and transfer paperwork for you.

How much is my IPv4 block worth?

In the RIPE region in 2026, clean blocks trade at roughly $12-15 per IP for a permanent sale - so about $3,000-3,800 for a /24. Reputation, registry, and routing readiness all affect the final figure. Model yours in the pricing calculator.

How long does an IPv4 transfer take?

Typically two to four weeks from signed agreement to a finalized registry record in the RIPE region, assuming documentation is in order. ARIN transfers can take longer due to stricter review.

Can I sell a block I received recently?

Not if it is inside a registry hold period - RIPE restricts re-transfer for 24 months after a block is transferred to you. You can lease it during that window, though.

Is it better to sell or lease my IPv4 addresses?

If you need capital now, sell. If you can hold the asset, leasing usually returns more - it recovers the equivalent sale value in three to four years and keeps paying after that, while you retain ownership. See the full comparison.