Advantages and Disadvantages of Leasing IPv4 Addresses

Your next customer needs public IPv4. Your budget also needs to cover servers, transit and the team that keeps those services online. Leasing lets you add address capacity while keeping cash available for the rest of your network.

The lasting value is continuity. Once customers rely on an address in an API allowlist, a firewall rule or a VPN, keeping it working matters far more than the cost of the number itself. This guide compares the advantages and disadvantages of leasing IPv4 addresses through that customer lens: room to grow, control over your network and a dependable supply partner.

IPv4 Leasing: Key Takeaways

• Keep cash working. Add IPv4 without paying the full acquisition cost upfront.
• Grow with demand. Match address capacity to customer launches, new locations and larger deployments.
• Protect the services behind the addresses. Routing, reputation and renewal matter because your customers depend on them.
• Choose the relationship behind the supply. LARUS combines first-party IPv4 supply with Continuity, so your network has a direct operating partner.

What Is IPv4 Leasing?

IPv4 leasing gives your network the use of public IPv4 addresses for a chosen period in return for a recurring fee. You put the addresses to work without funding an outright purchase of the block.

ISPs use leased space to connect customers. Hosting providers and data centres use it for servers and new tenants. Cloud platforms, SaaS teams and enterprise networks use it for public services, APIs, VPNs and security systems.

IPv4 uses a finite 32-bit address space; the IANA IPv4 Address Space Registry records the allocation of that space. Leasing is a way to access existing capacity as your business grows. Our complete guide to leasing IP addresses covers the wider journey from choosing a block to putting it into service.

Advantages of Leasing IPv4 Addresses

Keep more capital for your network

Every amount tied up in an address purchase is money you cannot spend on a new rack, better transit or your next customer launch. Leasing spreads the address cost over the period of use. That gives you more room to invest in the parts of the business that earn revenue.

Add capacity as customers arrive

A hosting provider might start with a /24 and need several more blocks as demand grows. A data centre might open a new location. Leasing lets you plan those steps around real customer demand, instead of buying all the capacity you might need years in advance.

Support launches and temporary projects

A migration, test environment or regional launch may need addresses for a defined period. A lease can fit that schedule. For a long-lived service, the same planning starts with continuity: a supply relationship that supports the network beyond its first launch.

Make expansion easier to budget

Bring address capacity into your operating plan alongside servers, bandwidth and support. Model the block size, period and next growth stage together. Use current IPv4 lease rates by block size to explore the offer for your configuration.

Choose a block that fits

CIDR prefixes make capacity easy to compare. A shorter prefix contains more addresses. Use these total block counts to plan capacity, then allocate addresses to suit your subnet design.

IPv4 block sizes

Prefix	Total addresses
/24	256
/23	512
/22	1,024
/21	2,048
/20	4,096
/19	8,192
/18	16,384
/17	32,768
/16	65,536

With LARUS, Unlimited IPv4 puts supply behind your growth. Start with the capacity your network needs and build your next deployment around a direct Continuity partner.

Disadvantages of Leasing IPv4 Addresses

A useful comparison explains what you pay for and what keeps the service working. The main trade-offs are recurring cost, the supply relationship and the effort involved if your addresses change.

A recurring fee belongs in the full cost picture

Lease payments continue while you use the capacity. Over a long period, their total can exceed the initial price of a block. The better comparison includes the cash a purchase ties up, the work of managing the resource and the value of continuity. A low purchase price alone does not answer those questions.

Your provider becomes part of your operation

When you need a routing change, more capacity or help with an address issue, you need a team that can act. A chain of intermediaries adds handoffs. Working directly with LARUS gives your team one operating relationship around supply, routing and renewal.

Changing addresses creates work for your customers

Replacing a prefix can mean updating DNS, API allowlists, firewall rules, VPNs and customer configurations. That is why the choice of supply partner matters from the start. Continuity protects the value you build around your addresses as the network grows.

IPv4 Leasing Risks: What Keeps Your Services Working?

A block is useful when your customers can reach it and your team can operate it. These are the practical areas that turn address capacity into a working service.

Routing that reaches your network

Your origin ASN identifies the network announcing the prefix through BGP. An LOA records routing authorisation; IRR objects and RPKI data support the checks other networks make. Aligning these records with your deployment helps traffic reach the right place.

A Route Origin Authorisation, or ROA, identifies which ASN may originate a prefix. Read our RPKI explanation and ROA guide; engineers can also use the ROA technical profile in RFC 9582.

Reputation that fits your application

Address history can affect email delivery, security filters and access to other services. Test the applications your customers actually use. An address that works for web hosting can still have an email-specific blocklist entry. A clear path to investigate and resolve reports helps your service stay useful.

Reverse DNS and location data that support delivery

PTR records connect an address to a hostname through reverse DNS. They matter for services such as mail and for network diagnostics. Our PTR record guide explains how they work. Geolocation databases are separate: after a block moves, some may still show its former location. Checking the services you use helps identify which records need attention.

A clear response when an issue appears

Reputation reports, routing changes and renewal should have a clear route to the people who can help. LARUS brings these operating needs into the same first-party relationship. Your team spends less time chasing separate parties and more time serving customers.

Dedicated vs Shared IPv4 Leasing

Dedicated IPv4 gives one customer exclusive use of the addresses during the lease. It suits hosting, cloud and ISP services that need their own routing, stable identity and control over how the addresses are used.

Shared IPv4 serves multiple users through a shared setup. It can fit applications designed for shared addressing, but it offers a different level of control over routing and reputation. A temporary test environment and a public customer platform have different needs.

Dedicated describes how the addresses are used. First-party describes who supplies them. They answer different questions. See types of IP leasing models for the detailed comparison.

First-Party vs Brokered IPv4 Leasing

With a brokered lease, the company that introduced the block may need another provider or resource holder to make changes. Each handoff matters when a customer is waiting for a service to come online.

LARUS supplies IPv4 from its own pool and carries the registry-facing work upstream. Your team works directly with the provider responsible for continuity, instead of managing that layer inside your own operating company. Buying a block does not remove its dependence on the registry.

This is the argument Lu Heng sets out in Note 35 on registry risk and LARUS Continuity: the important difference is who carries and defends the registry relationship. For your business, it means a direct partner focused on keeping the services behind your addresses working.

Behind that service is a distinctive rights foundation: Cloud Innovation's court-recognised shareholder position in AFRINIC and its exclusive mandate appointing LARUS to operate its IPv4 estate. Put that institutional strength behind your network, with the appointed team delivering and supporting your service.

When Does Leasing IPv4 Make Sense?

Leasing is a strong fit when you want to launch a service, add customers or enter a new region while keeping cash available for growth. It also fits migrations and projects with a defined lifespan.

For a production network that will run for years, the value goes beyond flexible capacity. Your addresses become part of customer integrations, network reputation and day-to-day operations. A direct continuity partner supports that lasting value as well as the first deployment.

Leasing vs Buying: Compare More Than the Address Price

A purchase puts the block and its registry relationship into your own business. It also ties up capital that could fund equipment, people or expansion. Leasing keeps the supply cost in your operating plan and lets you choose a partner to carry the registry-facing work.

For a stable, long-term requirement, compare the total cost across the same period: purchase funding, recurring fees, resource administration, technical support and the cost of a disruption. Our leasing versus buying IPv4 comparison explores those choices. LARUS Continuity is built for operators who want usable capacity and a business that can keep moving.

The Hidden Cost of IPv4 Renumbering

Imagine your customers have allowlisted your API addresses. DNS, VPNs, monitoring and firewall rules all point to the same prefix. Changing the number on a server is only a small part of replacing that prefix.

The real work crosses engineering teams, customers and external partners. It can include configuration changes, testing, communications and rebuilding reputation. Keeping a dependable network identity avoids that repeated work and lets your team focus on the next service.

Reduce IPv4 Leasing Risk Through Continuity

Build the supply plan around the service your customers need. Dedicated use supports control over reputation and configuration. Aligned routing records support reachability. Reverse DNS and location updates support the applications behind the addresses.

Bring the next growth stage into the conversation early, including how long customers will depend on the same prefix. LARUS combines address supply with routing, RPKI/ROA, reverse DNS, reputation, geolocation and renewal support. If your team needs help connecting these pieces, the LARUS team can help shape the deployment around your network.

How Do You Lease IPv4 Addresses?

1. Size the opportunity. Choose the address count, location and period for your next customer deployment.
2. Build your offer. Explore the current capacity and Continuity configuration.
3. Connect the network. Bring your ASN and routing plan together with LOA, IRR and ROA records.
4. Put the addresses to work. Test reachability, application reputation and reverse DNS, then launch and plan the next expansion.

For the engineering detail behind each step, use our step-by-step IPv4 leasing guide.

Plan Your IPv4 Capacity

Start with three practical answers: how many addresses your next deployment needs, where you will announce them and how long your customers will depend on them. Add your growth forecast and the services you want supported, such as ROA changes or reverse DNS.

Those answers turn an address enquiry into a useful network plan. You can choose capacity for today while keeping the next location, customer or product launch in view.

Frequently Asked Questions

What are the main advantages of leasing IPv4 addresses?

Lower upfront spending, capacity that can grow with demand and a faster commercial path to your next deployment. With LARUS, first-party supply and Continuity also support the services your customers build around those addresses.

What are the main disadvantages of leasing IPv4 addresses?

You have a recurring fee and depend on the supplier for continued service. A change of prefix can also create work across customer systems. Choosing a direct continuity partner addresses the operating relationship behind those concerns.

Is leasing IPv4 safe for a production network?

A production network needs more than an available block. It needs reachable routes, useful address reputation and continuity. LARUS brings the supply and operating support together so you can build around the services your customers rely on.

Is leasing IPv4 cheaper than buying?

Leasing lowers the upfront amount committed to addresses. Compare the total over your planned period, including the value of cash kept available, support and continuity. The live pricing page shows current configuration-led rates.

What is the biggest risk of leasing IPv4?

For an established service, losing the prefix can be more disruptive than losing spare capacity. Customer allowlists, DNS and security rules take time to change. That is why continuity belongs at the centre of the supply decision.

Can leased IPv4 addresses have bad reputation?

Past use can leave entries in reputation or blocklist systems. Test the applications you plan to run and use the provider's support path to investigate issues. Reputation is application-specific, so a relevant check is more useful than a generic score.

Can I use RPKI with leased IPv4?

Yes. A ROA can authorise your origin ASN for the leased prefix. Aligning it with your BGP announcement helps other networks validate the route. LARUS includes RPKI/ROA in its operating support.

Can leased IPv4 have reverse DNS?

Yes. PTR-record management or reverse-DNS delegation lets you connect addresses to the hostnames your services use. LARUS supports reverse DNS as part of the address relationship.

Is dedicated IPv4 better than shared IPv4?

Dedicated use is a better fit when you need control over your public network identity, routing and reputation. Shared addressing fits applications built to share. Choose the model that matches how your customers connect to your service.

Is first-party leasing the same as dedicated leasing?

No. Dedicated means one customer uses the addresses. First-party means the supplier provides the resource directly. Your network can benefit from both exclusive use and a direct operating relationship.

When should I lease instead of buy IPv4?

Lease when you want capacity for growth without tying up the full purchase amount, or when you want a specialist partner around supply and continuity. That can serve a short project or a long-running customer network.

Where can I find current IPv4 lease prices?

Use the current IPv4 pricing page to explore rates for your block size and configuration.

How do I actually lease IPv4 addresses?

Choose your capacity and period, then connect that plan to your ASN and deployment. The IPv4 leasing steps explain the routing and activation work.

Where can I find the complete IPv4 leasing guide?

Our complete IPv4 leasing guide brings together capacity, pricing, provider structure and deployment.

Is Leasing IPv4 a Good Solution for Your Business?

Leasing helps you turn address capacity into live services while keeping capital available for growth. For infrastructure that customers rely on, the strongest reason to choose LARUS is the combination of direct supply and Continuity. You get a partner for the working network behind the addresses.

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