Selling vs Leasing IPv4 Addresses: Which Option Is Better?

Organisations with surplus IPv4 address space generally have two main commercial options: sell the addresses for immediate liquidity or lease them to generate recurring income.

Both strategies can create value, but they serve different financial and operational goals.

Selling usually means completing a commercial transaction followed by the applicable registry transfer process, after which the seller no longer maintains the same resource relationship with the transferred block.

Leasing generally allows another party to use the IPv4 addresses for a defined period while the underlying resource relationship remains with the lessor, subject to the relevant contract and registry framework.

The choice is not simply “cash now versus cash later.” It is a decision about liquidity, future IPv4 requirements, operational responsibility, reputation risk and long-term flexibility.

Selling vs Leasing IPv4 Addresses: Quick Answer

Selling IPv4 may make more sense when:

• the address space is genuinely surplus;
• the organisation is unlikely to need it again;
• immediate liquidity is important;
• management wants to reduce ongoing IPv4 administration;
• the organisation does not want continuing reputation or abuse exposure; or
• the current transfer value is commercially attractive.

Leasing IPv4 may make more sense when:

• recurring revenue is preferred;
• the block may be strategically useful again later;
• the organisation wants to preserve future optionality;
• the expected net lease return justifies ongoing management;
• reputation and abuse can be monitored effectively; and
• routing and operational responsibilities are clearly defined.

A hybrid strategy may also be appropriate: sell some surplus capacity, lease some, and retain enough for future internal growth.

What Does It Mean to Sell IPv4 Addresses?

Selling IPv4 generally involves transferring an address block from one eligible organisation to another through the applicable commercial and registry processes.

The exact process depends on:

• which Regional Internet Registry is involved;
• the history and status of the resource;
• seller and recipient eligibility;
• whether the transaction is intra-RIR or inter-RIR;
• corporate documentation;
• applicable transfer policies; and
• the transaction agreement.

A simplified sequence is:

commercial agreement → registry transfer → routing and security updates → buyer deployment

These are related steps, but they are not the same event.

Once the applicable transfer is completed, the seller generally exits the previous resource relationship associated with that transferred block.

Organisations considering a direct transaction can review Sell IPv4 Addresses to LARUS .

What Does It Mean to Lease IPv4 Addresses?

Leasing allows another party to use IPv4 address capacity under a contract for a defined period.

Depending on the arrangement, the lessee may:

• originate the prefix from its own ASN;
• use an upstream provider's ASN;
• manage production systems using the addresses;
• request RPKI changes;
• require IRR route objects;
• require reverse DNS;
• use the addresses in customer infrastructure; and
• develop long-term operational dependencies on the prefix.

The underlying resource relationship may remain with the lessor while the lessee receives defined contractual and operational rights for the lease period.

This is more precise than saying the lessor universally “retains ownership.”

Leasing separates the underlying resource relationship from temporary or contractual operational use.

For an overview of different leasing structures, read IP Leasing: How IPv4 Leasing Works, Models, Costs & Benefits .

Ownership, Registry State and Operational Use Are Different

Discussions about selling versus leasing often become confusing because several different concepts are described using the word “ownership.”

A more useful model separates four layers:

legal and commercial rights → registry state → routing authorisation → operational use

A sale changes the commercial and registry relationship more fundamentally than a lease.

A lease instead creates a defined operational relationship while the underlying resource relationship may remain unchanged.

For a deeper explanation, read Who Owns IP Addresses? .

Selling vs Leasing IPv4: Key Differences

When Selling IPv4 May Be the Better Option

Selling can be attractive when the organisation has high confidence that the address space is no longer required.

1. You Need Immediate Liquidity

An outright transfer can convert surplus IPv4 capacity into a one-time capital inflow.

That capital can then be used for:

• network upgrades;
• cloud infrastructure;
• IPv6 deployment;
• business expansion;
• debt reduction;
• acquisitions; or
• other strategic investments.

2. You Are Unlikely to Need the Addresses Again

A business that has consolidated infrastructure, reduced public IPv4 consumption, deployed IPv6 or changed its network architecture may conclude that certain prefixes are genuinely surplus.

In that case, retaining the block solely because it might appreciate is a separate investment decision rather than an operational requirement.

3. You Want to Reduce Ongoing Management

A completed sale can reduce future responsibilities involving:

• customer management;
• lease administration;
• abuse handling;
• reputation monitoring;
• RPKI changes;
• IRR updates;
• reverse DNS;
• billing;
• renewal; and
• termination.

4. You Prefer Price Certainty

Selling crystallises the commercial value at a specific point in time.

After completion, the seller is less exposed to future changes in IPv4 lease rates or transfer pricing for that block.

When Leasing IPv4 May Be the Better Option

Leasing may be more appropriate when an organisation wants to generate revenue without permanently exiting the underlying resource relationship.

1. You Want Recurring Revenue

Leasing can convert unused capacity into recurring commercial income.

However, the relevant calculation should be net lease income, not headline monthly revenue.

Costs can include:

• platform or service fees;
• administration;
• technical support;
• billing;
• abuse management;
• reputation remediation;
• customer turnover;
• vacancy between leases; and
• other operational costs.

2. You May Need the IPv4 Again

If long-term internal IPv4 demand is uncertain, leasing may preserve more flexibility than an outright transfer.

The contract should clearly define:

• lease duration;
• renewal;
• notice periods;
• termination;
• migration time; and
• how operational control returns at the end of the relationship.

3. You Want Exposure to Future IPv4 Value

Leasing can preserve exposure to future economic value because the underlying resource relationship may remain with the lessor.

But future value should not be assumed to increase continuously.

IPv4 market conditions can change because of:

• IPv6 adoption;
• cloud architecture;
• buyer demand;
• economic conditions;
• carrier-grade NAT;
• transfer liquidity;
• lease supply; and
• other technical and market changes.

Do You Keep Ownership When Leasing IPv4?

A universal yes-or-no answer is not precise enough.

Different registry frameworks, resource histories, agreements and jurisdictions can describe Internet number-resource rights differently.

A better question is:

Which commercial rights, registry relationship, routing authority and operational responsibilities remain with each party?

In a typical leasing structure, the lessor may maintain the underlying resource relationship, while the lessee receives contractual use of the IPv4 capacity for a specified period.

The lessee may still control substantial operational functions, including its network architecture and BGP policy.

Therefore:

leasing does not mean the customer “owns nothing,” and the underlying resource relationship should not automatically be described as conventional property ownership.

Selling Is Not Simply “Giving Up Ownership”

The same precision should be applied to sales.

A completed IPv4 transfer changes the relevant commercial and registry relationship associated with the resource.

But Internet number-resource terminology should not be reduced to one universal property-law conclusion.

The practical commercial point is simpler:

after a completed sale and transfer, the seller should no longer expect future operational use or commercial control of the transferred block.

Compare the Financial Return Properly

Selling versus leasing should be evaluated using comparable numbers.

For selling:

net sale proceeds = sale price − transaction costs − applicable expenses

For leasing:

net lease return = lease revenue − operating costs − vacancy − administration − remediation − service expenses

Then consider the time value of money.

Receiving capital immediately is economically different from receiving the same nominal amount over several years.

There Is No Universal Sell-vs-Lease Break-Even Period

Claims such as “leasing becomes more profitable after X years” should be treated carefully.

The result depends on:

• current sale price;
• monthly lease rate;
• occupancy;
• contract duration;
• operating costs;
• future pricing;
• tax treatment;
• risk;
• cost of capital; and
• future internal demand.

Organisations should model their own scenarios rather than relying on a universal number.

For current market indicators, see LARUS Global IPv4 Pricing & Market Statistics .

Reputation Risk Is More Important When Leasing

A seller generally exits most future operational reputation exposure after the transaction has been completed.

A lessor, by contrast, may eventually receive the prefix back after another party has used it.

That makes reputation an important leasing consideration.

Potential issues include:

• spam;
• malware;
• phishing;
• fraud;
• proxy or VPN classifications;
• hosting abuse;
• email blocklists;
• security feeds;
• geolocation changes; and
• historical abuse reports.

Reputation is dynamic, not a permanent characteristic of the IPv4 address.

Nevertheless, remediation may take time and operational effort.

A leasing strategy should therefore include:

• acceptable-use policies;
• appropriate customer verification;
• abuse monitoring;
• incident response;
• reputation checks;
• termination procedures; and
• post-lease remediation.

Routing Responsibility Is Also Different

When an IPv4 block is sold, the new resource relationship will generally be responsible for establishing the future routing environment.

During a lease, routing responsibilities may be split between:

• the lessor;
• an IPv4 service provider;
• the lessee;
• an upstream transit provider; and
• other technical parties.

Before leasing, define:

• which ASN will originate the prefix;
• who provides an LOA if required;
• who creates RPKI ROAs;
• who updates IRR route objects;
• who manages reverse DNS;
• who monitors BGP;
• how ASN changes are handled; and
• what happens when the lease ends.

RPKI Should Be Treated as Routing Authorisation

RPKI is particularly relevant when leased IPv4 is originated by the lessee's ASN.

A Route Origin Authorisation can identify which ASN is authorised within the RPKI system to originate the relevant prefix.

But RPKI does not decide whether selling or leasing creates conventional ownership.

RPKI answers a routing-authorisation question, not every legal or commercial question surrounding the resource.

For more detail, read The Role of IP Address Prefixes in RPKI .

Operational Control Should Not Be Confused With the Resource Relationship

A lessee can have meaningful control over the operation of its own network without carrying the underlying resource relationship.

For example, the customer may control:

• its ASN;
• BGP policy;
• upstream selection;
• traffic engineering;
• applications;
• firewalls;
• network architecture; and
• customer infrastructure.

Meanwhile, another party may carry:

• the underlying resource relationship;
• certain registry-facing responsibilities;
• RPKI administration;
• reverse-DNS delegation; or
• other service responsibilities.

Clear separation of responsibility is more useful than trying to describe every layer with the word “ownership.”

Selling vs Leasing and Future IPv4 Demand

Before selling, determine whether the space is truly surplus.

Consider possible future demand from:

• customer growth;
• new data centres;
• cloud expansion;
• acquisitions;
• new products;
• network migration;
• disaster recovery;
• security infrastructure;
• IPv4-only integrations; and
• provider-independent addressing requirements.

Selling space that later needs to be reacquired can create new cost and operational complexity.

Leasing can preserve more future flexibility, but only if the termination and return process matches the organisation's expected needs.

Selling vs Leasing and IPv6

IPv6 should also be part of the decision.

IPv6 is the long-term architectural answer to IPv4 address scarcity.

But organisations continue to operate IPv4 because applications, customers, networks and external services do not all function in an IPv6-only environment.

An organisation with strong IPv6 deployment may reduce its long-term IPv4 requirements and discover genuinely surplus blocks.

But IPv6 deployment alone does not automatically mean every IPv4 prefix should be sold.

The decision should follow actual infrastructure requirements.

Network Identity Can Change the Decision

Before selling an apparently underused block, determine whether the addresses have become embedded in external systems.

Public IPv4 addresses may appear in:

• customer allowlists;
• banking integrations;
• payment platforms;
• APIs;
• VPNs;
• firewalls;
• security systems;
• partner networks;
• monitoring systems; and
• compliance documents.

A prefix can therefore appear lightly utilised while still carrying substantial business-continuity value.

Do not measure surplus IPv4 only by active address count. Measure the cost of replacing its network identity as well.

For more on this issue, read Can Your Business Survive Losing Its IP Addresses? .

When a Hybrid IPv4 Strategy Makes Sense

An organisation does not necessarily need to choose between selling everything and leasing everything.

A hybrid strategy may involve:

• retaining capacity for expected internal demand;
• leasing space that may be needed again later;
• selling blocks that are clearly surplus; and
• reviewing the portfolio periodically.

There is no universal percentage that every organisation should sell or lease.

The allocation should be based on:

• actual IPv4 forecasts;
• block structure;
• current market conditions;
• cash requirements;
• lease-management capability;
• risk tolerance; and
• future strategic value.

For a broader framework, read IPv4 Monetisation in 2026: Models, Risks and Strategies for Surplus IP Addresses .

How to Decide: A Practical Framework

Questions to Ask Before Selling IPv4

1. Is the block genuinely surplus?
2. Does any production system still depend on it?
3. Are customers or partners allowlisting these addresses?
4. What does the current registry state show?
5. Is the block eligible for the intended transfer?
6. Are corporate records and authorised contacts current?
7. What is the current market value?
8. What transaction costs will apply?
9. What happens to existing RPKI, IRR and reverse-DNS configuration?
10. Does the transaction require legal, accounting or tax review?

Questions to Ask Before Leasing IPv4

1. How much recurring income is expected after costs?
2. Who is the lessee or customer?
3. What use is permitted?
4. Who handles abuse?
5. Who manages address reputation?
6. Which ASN will originate the prefix?
7. Who controls RPKI?
8. Who maintains IRR objects?
9. Who manages reverse DNS?
10. How long is the lease?
11. What is the renewal process?
12. How much termination notice is required?
13. What remediation occurs when the prefix returns?
14. How quickly can the block be recovered for internal use?

Legal, Tax and Accounting Considerations

Selling and leasing can have different legal, tax and accounting consequences.

These may vary according to:

• jurisdiction;
• resource history;
• corporate structure;
• transaction form;
• contract terms;
• accounting standards; and
• applicable tax rules.

Registry terminology should not be treated as a substitute for legal or accounting advice.

Organisations undertaking a material transaction should obtain professional advice appropriate to their specific circumstances.

How LARUS Approaches Selling vs Leasing IPv4

LARUS supports both sides of the decision.

For organisations with IPv4 capacity that is genuinely surplus, a direct sale can provide a clear path to immediate commercial value.

For organisations that want to preserve future flexibility, structured IPv4 leasing may provide recurring income while maintaining the underlying resource relationship, subject to the applicable arrangement.

The correct answer depends on:

• future address demand;
• current pricing;
• desired liquidity;
• expected lease return;
• risk tolerance;
• operational capacity;
• registry readiness;
• reputation; and
• time horizon.

The objective should not be to maximise one transaction metric. It should be to choose the structure that best fits the organisation's financial and infrastructure requirements.

Frequently Asked Questions

Is it better to sell or lease IPv4 addresses?

It depends on the organisation's goals. Selling generally suits organisations seeking immediate liquidity and a clean exit from future resource management. Leasing may suit organisations seeking recurring income and future optionality.

Do you keep ownership when leasing IPv4 addresses?

It is more accurate to examine the underlying resource relationship, commercial rights and applicable registry framework than to make a universal ownership statement.

In many leasing structures, the lessor maintains the underlying resource relationship while the lessee receives contractual operational use for a defined period.

Do you permanently lose the IPv4 block when you sell it?

After the commercial transaction and applicable registry transfer are completed, the seller should generally no longer expect future operational use or control of the transferred block.

Why would a company sell IPv4 instead of lease it?

A company may prefer selling when it needs immediate capital, no longer expects to use the resource, wants to reduce administration or prefers certainty over future lease income.

Why would a company lease IPv4 instead of sell it?

Leasing may provide recurring revenue, preserve future optionality and allow the organisation to retain the underlying resource relationship while another party uses the addresses under contract.

Is IPv4 leasing passive income?

Not necessarily. Leasing may require customer management, billing, routing support, abuse response, reputation monitoring, RPKI, IRR, reverse DNS and termination management.

Can leasing damage IP reputation?

Yes. Misuse can affect spam, security, fraud and other reputation systems. Good customer controls, monitoring and remediation can reduce the risk, but cannot eliminate it completely.

Can reputation recover after a bad lease?

Often it can improve over time, depending on the type of reputation issue and the third-party systems involved. Reputation is dynamic rather than permanently attached to an address forever.

Does leasing require changing the registry record?

The answer depends on the registry, service model and relevant operational information. Leasing does not necessarily require a full resource transfer, but certain contacts, routing information, RPKI or other coordination data may need to reflect the legitimate operational arrangement.

Does selling IPv4 require an RIR transfer?

Many IPv4 sales involve an applicable registry transfer process. Requirements vary by registry, resource history and transaction structure, so the relevant RIR rules should be checked directly.

Can a lessee use its own ASN?

Yes, where the leasing and routing arrangement supports it. The relevant RPKI, IRR and upstream configuration should then align with the intended origin ASN.

Is RPKI proof of IPv4 ownership?

No. RPKI provides cryptographically verifiable information relevant to route-origin authorisation. It should not be treated as universal proof of conventional legal ownership.

Is selling always more profitable than leasing?

No. The financial result depends on current sale value, lease rates, occupancy, operating costs, time horizon, risk and future market conditions.

Is leasing always more profitable over the long term?

No. Recurring revenue can be attractive, but there is no universal break-even period. Net returns depend on market pricing, operating expenses, utilisation and risk.

Can I sell some IPv4 addresses and lease others?

Yes. A hybrid strategy can allow an organisation to realise immediate value from clearly surplus resources while preserving future flexibility with other blocks.

How do I know whether my IPv4 addresses are genuinely surplus?

Review current utilisation, future network plans, acquisitions, disaster recovery, customer requirements, cloud strategy, IPv6 deployment and any third-party systems that depend on the addresses.

Conclusion

Selling and leasing IPv4 addresses are both legitimate ways to create value from surplus address capacity, but they serve different objectives.

Selling can provide:

• immediate liquidity;
• a clearer exit;
• less ongoing administration; and
• reduced future exposure to the block.

Leasing can provide:

• recurring revenue;
• future optionality;
• continued underlying resource relationship; and
• flexibility when future IPv4 demand is uncertain.

The decision should not be reduced to a simple ownership question.

A more useful framework is:

future demand + commercial rights + registry state + financial return + routing responsibility + reputation + operational risk

If the address space is clearly surplus and immediate capital is more valuable, selling may be the stronger option.

If future optionality and recurring income matter, leasing may be more appropriate.

And where an organisation has multiple blocks, a combination of selling, leasing and retaining may provide the best balance.

The best IPv4 strategy is not automatically the one with the highest sale price or monthly lease rate. It is the one that creates value without creating a larger future infrastructure problem.

If your organisation has IPv4 capacity that is genuinely surplus, explore Sell IPv4 Addresses to LARUS .

If you are considering recurring monetisation instead, read IP Leasing: How IPv4 Leasing Works, Models, Costs & Benefits .

For a broader monetisation strategy covering sale, leasing and hybrid models, read IPv4 Monetisation in 2026: Models, Risks and Strategies for Surplus IP Addresses .

For current pricing and market information, visit LARUS Global IPv4 Pricing & Market Statistics .