IPv4 leasing usually needs less cash upfront and suits temporary or uncertain demand. Buying can make financial sense when we expect stable use, can fund the purchase, and gain enough value from direct control or lower long-term costs. The right choice depends on fees, resale value, and the cost of changing addresses.
A monthly lease and a purchase price answer different questions. One tells us what access costs each month. The other tells us how much cash we need to acquire the block. Neither figure tells us the full cost of using it.
We need to compare the same capacity over the same period. This guide shows how, with a worked example and practical checks for hosting providers, ISPs, and business networks.
IPv4 Leasing vs Buying at a Glance
IPv4 leasing gives us permission to use an address block under a contract. The registered holder keeps the registry relationship. We pay for use within the agreed term and conditions.
Buying IPv4 usually means paying for a transfer of registration rights to our organization. We then take on the relevant registry duties. It does not give us unrestricted rights outside registry policies and agreements.
| Decision factor | Leasing IPv4 | Buying IPv4 |
|---|---|---|
| Initial cash | Usually lower; setup, deposits, or prepayment may apply | Purchase price and transaction costs |
| Recurring costs | Lease payments and any separate services | Registry charges, management, and network services |
| Administrative control | Depends on contract and delegated access | More direct control as the registered holder |
| Capacity changes | Add or return blocks within contract terms | Buy more, retain spare capacity, or arrange a transfer |
| Continued use | Depends on renewal and contract compliance | Depends on registry duties and continued operational support |
| Exit | Return the addresses and stop using them | Keep the block or seek an eligible buyer |
| Main financial risk | Renewal costs and forced address changes | Cash tied up and uncertain resale proceeds |
ARIN explains that a lease does not grant permanent registration rights or ensure network autonomy. Once the agreement ends, the holder may require the addresses back. We therefore need an exit plan before using leased space for services that are difficult to move.
What Costs Should We Include?
The full IPv4 lease vs buy comparison includes acquisition, operation, and exit costs. We should also separate money tied up temporarily from money spent permanently.
IPv4 leasing costs
The monthly price is the starting point. Before signing, we should check:
- Setup charges and minimum contract length.
- Advance payments and refundable deposits.
- Routing support and address-record management.
- Renewal prices and notice periods.
- Early termination charges.
- Work required to return or replace the addresses.
A refundable deposit reduces available cash, but it is not automatically an expense. We should record when it is paid, when it can be returned, and what could reduce the refund.
For a current reference, our IPv4 leasing page displayed these monthly prices when checked on November 12, 2026:
| Block | Address count | Displayed monthly price |
|---|---|---|
| /24 | 256 | $150 |
| /23 | 512 | $250 |
| /22 | 1,024 | $480 |
These are displayed service prices. A written quote should confirm the term, applicable charges, routing requirements, and available inventory. We should not compare them with a purchase offer until both options meet the same needs.
IPv4 buying costs
Buying involves more than multiplying the address count by a price per IP. Our budget should include:
- The purchase price for the block.
- Broker, escrow, and contract costs where applicable.
- Transfer and account charges payable by the buyer.
- Any increase in annual registry or sponsorship fees.
- Routing setup, reputation checks, and ongoing administration.
- Sale costs if we expect to dispose of the block later.
The ARIN fee schedule lists recurring registration charges and separate transaction fees. Its 2026 recipient transfer fee is $187.50 for a /24 and $375 for a block larger than /24 through /22. Other costs may apply to the organization or transaction.
We should assign each fee to the party that pays it. A seller’s charge belongs in our purchase budget only if our agreement makes us responsible for it.
Compare quotes on the same basis
A low price is useful only if the block meets our requirements. Match the quantity, currency, quote date, permitted use, reputation requirements, routing permissions, and support scope.
Convert currencies before calculating break-even. Dividing a dollar purchase price by a euro monthly lease does not produce a valid month count.
Also check what the quote excludes. Addresses alone do not supply a server, transit connection, or a guarantee that an upstream network will accept the route.
How Do We Calculate the IPv4 Break-Even Point?
For a simple cash comparison, we divide the extra upfront purchase cost by the monthly cost saved through buying.
Break-even months = (buy upfront cost − lease upfront cost) ÷ (lease monthly cost − buy monthly cost)
“Buy monthly cost” means the ongoing costs of holding and managing the purchased block. We can divide an annual charge by 12 for this first estimate, although the actual bill may arrive upfront.
This formula assumes fixed prices. It excludes resale, financing, the time value of money, and differences in exit costs. We add those factors after checking the basic cash comparison.
If buying costs more upfront and its recurring costs are at least as high as leasing, there is no cash break-even under these assumptions.
A worked /24 example
The following figures are illustrative assumptions, not current market quotes or an Atal Networks offer. We use them to show the calculation.
Both options provide the same 256-address block:
| Input | Assumed amount |
|---|---|
| Purchase price | $7,680 |
| Purchase transaction costs | $320 |
| Total purchase payment | $8,000 |
| Buyer recurring costs | $300 per year |
| Monthly lease | $140 |
| Lease setup fee | $0 |
We assume constant costs, no deposits, no tax, and no separate exit charges. The $300 annual buyer cost is an example input, not a quoted registry fee.
| Period of use | Lease cash paid | Buy cash paid | Lower cash outlay |
|---|---|---|---|
| 1 year | $1,680 | $8,300 | Аренда |
| 3 years | $5,040 | $8,900 | Аренда |
| 5 years | $8,400 | $9,500 | Аренда |
| 6 years | $10,080 | $9,800 | Buy |
| 7 years | $11,760 | $10,100 | Buy |
The monthly equivalent of the buyer’s recurring cost is $25. Our calculation is:
$8,000 ÷ ($140 − $25) = 69.6 months, or about 5.8 years.
This is a cash crossover estimate, with annual costs spread evenly across months. Actual billing dates can shift the point at which cumulative payments cross.
The lesson is not that every IPv4 purchase pays back in six years. The result belongs to these inputs. A different purchase price, lease rate, or registry cost changes it.
How sensitive is the result to the lease rate?
Keeping the $8,000 purchase payment and $25 monthly buyer cost unchanged gives us:
| Assumed lease rate | Approximate cash crossover |
|---|---|
| $100 per month | 106.7 months |
| $140 per month | 69.6 months |
| $180 per month | 51.6 months |
These are alternative fixed-rate scenarios. If our actual lease changes at renewal, we should enter each year’s payments separately rather than apply one rate to the whole period.
How Does Resale Value Change the Decision?
A purchased block may still have value when we stop using it. That can make its net cost lower than its total cash outlay.
Net purchase cost = purchase and operating costs − net sale proceeds
Net sale proceeds mean the money left after selling costs. We should also include any carrying costs while waiting for a buyer and completing the transfer.
In our three-year example, buying requires $8,900 in payments. Leasing costs $5,040.
| Assumed net proceeds from a completed sale | Net cost of buying after three years | Comparison with leasing |
|---|---|---|
| $6,000 | $2,900 | Buying costs less |
| $3,000 | $5,900 | Leasing costs less |
| No sale | $8,900 cash paid; block retained | More cash remains committed |
A retained block may have market value even without a sale. However, that value is not cash available to pay operating bills.
This distinction prevents two common mistakes: treating the purchase payment as entirely consumed, or treating a future sale price as certain.
Account for cash tied up in the purchase
Even when buying has a lower projected net cost, the initial payment may compete with spending on servers, staff, or network capacity.
For a larger decision, we can compare the present value of both options. This means converting future payments and sale proceeds into today’s value using the same discount rate and time horizon.
Our finance team should choose that rate and handle financing consistently. We should not count the same capital cost twice or assume that retained cash earns a guaranteed return.
Which Other Factors Can Change the Result?
Existing registry fees
We should compare the additional costs caused by the decision.
If our organization already pays registry fees, another block may leave the fee unchanged or move us into a higher category. Charging the entire existing bill to the new block can overstate the cost of buying.
A new organization may face account and annual costs that an established operator already covers. Use the organization’s actual fee position, not another buyer’s example.
Regional rules and resource status
Registry arrangements are not interchangeable. In the RIPE NCC region, receiving an IPv4 allocation requires membership, while eligible provider-independent space can use a sponsoring arrangement. The associated costs differ.
The 2026 RIPE NCC scheme lists an annual contribution of €1,800 per Local Internet Registry account and a €1,000 signup fee. It also lists a €75 annual charge per covered independent resource assignment. A sponsoring provider’s customer price can include its own service charges.
These are dated fee references, not fixed inputs for every future year. ARIN’s current fee page already points to an adopted 2027 schedule. A multi-year budget should use known changes and state assumptions for later years.
Addresses in use
A lower price per address can hide spending on idle capacity.
Using our hypothetical $140 monthly lease:
- At 256 active addresses, cost per active address is about $0.55 per month.
- At 100 active addresses, it rises to $1.40 per month.
Cost per active IP = total monthly address cost ÷ active addresses
A /24 contains 256 addresses, but the usable endpoint count depends on subnet design and provider reservations. We should use our actual deployment count when calculating unit cost.
Spare capacity can still be worth paying for. The question is whether our growth forecast supports it.
What Operational Risks Affect the Financial Decision?
Our cost model should include the work needed to keep addresses usable. A cheap block can become expensive if deployment fails or customers need to change their configurations.
Reputation and permitted use
Before accepting a block, we should check registration records, reputation history, relevant blocklists, and the supplier’s permitted-use terms.
Reputation is not one universal score. A block may pass a public check and still face restrictions from a particular service. We should test the use that matters to our network.
The agreement should explain who handles complaints, existing listings, and replacement requests. Neither leasing nor buying guarantees permanent acceptance by every destination.
Routing permissions and support
Our deployment checklist should identify who controls:
| Item | What we need to confirm |
|---|---|
| Letter of Authorization, or LOA | Who supplies permission documents required by the receiving network |
| Origin ASN | Which Autonomous System Number will announce the block |
| Route Origin Authorization, or ROA | Who authorizes the origin network through Resource Public Key Infrastructure, or RPKI |
| Internet Routing Registry records | Who creates and maintains route records used by upstream networks |
| Reverse DNS | Who manages delegation or PTR records |
| Registration and abuse contacts | Who maintains the records and responds to reports |
We should confirm support for these tasks before paying. Direct registration gives us more administrative control, but it also creates work for our team.
Renewal and changing IP addresses
Returning a block may require us to change DNS records, customer allowlists, firewall rules, monitoring systems, and application settings.
For example, a SaaS service may use fixed outbound IPs that customers approve manually. Changing those addresses can require coordination with every customer, even if the network change itself is simple.
Our exit estimate should include staff time, a period using both old and new addresses, and customer support. We should also check whether the lease notice period gives us enough time to complete that work.
Transfer and resale restrictions
Buying does not ensure that we can resell a block immediately. RIPE NCC lists a 24-month transfer restriction for IPv4 resources after receipt by the holder.
Other regions have their own requirements. We should check the relevant registry and resource history before relying on a sale date.
The purchase agreement, registry transfer, routing setup, and production launch are separate steps. Our project schedule must allow for all four.
When Does Leasing IPv4 Make Financial Sense?
Leasing is a strong option when our need is temporary, growth is uncertain, or we need to preserve upfront cash. It works best when the contract term fits the project and changing addresses has a manageable cost.
Consider a hypothetical hosting launch that needs a /24 for 18 months. Demand beyond that point is uncertain. Leasing limits the initial commitment and removes the need to find a buyer if the project closes.
Before choosing it, we should still ask whether the agreement allows us to exit after 18 months and whether customers can move to new addresses without major work.
We should favor leasing when:
- The required quantity may change.
- The project has a defined end date.
- A purchase would reduce funds needed for operations.
- The supplier provides useful administration within the quoted price.
- Renewal and exit terms match our plans.
Leasing is not automatically the lowest net-cost option for every short project. A successful resale can change the figures. Its clearer benefit is usually the smaller initial commitment.
When Does Buying IPv4 Make Financial Sense?
Buying deserves serious consideration when demand is stable, funding is available, and the full cost or operational value supports it.
An established ISP may already manage registry accounts, routing records, and abuse contacts. If it expects to use the same block for years, buying can reduce dependence on a lessor and avoid repeated renewal decisions.
We should favor buying when:
- The expected holding period supports the cost model.
- The organization can fund the purchase without harming operations.
- Direct administration matters to the network.
- Changing addresses would create substantial customer work.
- Staff can manage the ongoing registry and routing duties.
We should test the decision with a lower resale estimate as well as our expected case. If buying only works when prices rise sharply, the plan depends too heavily on a market forecast.
Should We Buy Core Capacity and Lease the Rest?
A mixed approach can match spending to demand. We can buy addresses for the proven base of our network and lease capacity for uncertain expansion.
For example, a hosting provider might retain purchased space for long-running customer services while leasing blocks for a new region. Once demand becomes stable, it can reassess that leased capacity.
| Situation | Approach to assess first | Main check |
|---|---|---|
| Short project with uncertain continuation | Аренда | Minimum term and exit cost |
| Stable demand with affordable purchase funding | Buy | Full cost and management duties |
| Stable base plus variable growth | Buy core capacity and lease extra blocks | Separate predictable demand from forecasts |
| Many unused public addresses | Review demand before acquiring more | Application needs and address use |
Lease-to-own is a separate arrangement. We should check which payments count toward purchase, the final payment, default terms, and transfer conditions. A regular lease does not build purchase credit unless the contract says so.
Can IPv6 reduce what we need to acquire?
Before committing to more IPv4 space, we should review our application requirements. IPv6, shared service endpoints, and Network Address Translation may reduce IPv4 demand in some designs.
They do not remove every requirement for public IPv4. Customer compatibility, inbound access, and dedicated-address needs still matter. We should base our purchase or lease quantity on the deployment we can support, not a general migration target.
Часто задаваемые вопросы
Is leasing IPv4 cheaper than buying?
Leasing usually requires less upfront cash. Whether it costs less overall depends on the term, purchase price, recurring fees, exit costs, and resale proceeds. We should compare both options over the same period and separate cash paid from net cost after a completed sale.
Can we buy IPv4 addresses permanently?
A purchase normally transfers registered holdership under the relevant registry framework. It can support long-term use, but ongoing fees, agreements, and policy duties still apply. We should not treat buying as an unconditional right to use the addresses forever.
Do we need our own ASN to lease IPv4?
Not in every deployment. If a hosting or transit provider announces the block from its network, the arrangement may not need our own ASN. If we operate our own routing, we may need one. We should confirm the origin ASN and routing permissions with the supplier and receiving network.
Can we move leased IPv4 addresses to another provider?
Possibly, if the lease permits it and the new provider accepts the block. We may need updated authorization documents, routing records, and ROAs. We should confirm portability in writing before relying on it as part of a future hosting move.
Can we sell a purchased block after a project ends?
We may be able to arrange a transfer if the resources and parties meet current registry requirements. The process can involve holding restrictions, buyer eligibility, and transaction costs. Our budget should allow for the time between ending production use and receiving sale proceeds.
Does buying IPv4 remove monthly bills?
It removes the lease payment for that block. Registry, sponsorship, administration, transit, hosting, and support costs can remain. Some arrive annually rather than monthly. We should include any costs that differ between the lease and purchase options in our comparison.
References and Data Sources
Pricing and policy sources checked for this article on November 12, 2026. Worked examples are our calculations from stated assumptions.
- ARIN and IPv4 Address Leasing.
- ARIN Fee Schedule.
- RIPE NCC: How to Transfer IP Addresses and ASNs.
- RIPE NCC Charging Scheme 2026.
- ARIN: Transferring IP Addresses and ASNs.
- Atal Networks: IPv4 Leasing.
- APNIC: Transfers.
Recommended Next Steps
Start with the capacity we need, the period we expect to use it, and the cost of changing addresses. Then request matching quotes and compare upfront payments, recurring charges, and possible exit outcomes.
For a lease comparison, send us your required block size, routing location, and expected term. We can prepare an IPv4 leasing quote so you can compare it with the full cost of buying.