How to Lease IPv4 Block

Your next rack, customer launch or network expansion needs public IPv4. Leasing an IPv4 block gives you address capacity without tying up the capital you need for servers, transit and growth. Choose the block for your next deployment, check the current offer and put it to work with a direct supply partner.

The block is the starting point. Once customers depend on its addresses for APIs, VPNs or hosted services, continued use becomes the real value. LARUS brings Unlimited IPv4 and Continuity into the same relationship, from your first deployment to the capacity you need next.

Choose an IPv4 Block for Your Next Deployment

A block is a consecutive range of addresses described by a CIDR prefix. A /24 contains 256 addresses; a /22 contains 1,024. Start with the services you want to launch and the customers you expect to add, then choose enough room for both.

Compare IPv4 block capacity

Block size	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

For any prefix from /0 to /32, the total is 2^{(32 − prefix length)}. These are total block counts; your subnet design determines how you allocate them. RFC 4632 explains CIDR notation.

For example, a hosting platform planning several hundred customer assignments can compare a /23 with a /22 to see how much expansion room each provides. A network opening several locations can plan capacity per site. Bring that growth plan into the offer so the addresses support the next stage of your business, too.

What Does It Cost to Lease an IPv4 Block?

Your IPv4 lease price depends on the capacity, lease period and service plan you choose. Use the current IPv4 pricing and plan calculator to compare configurations. It gives you a useful starting point for your deployment budget without relying on a dated price table.

Compare the full amount over the same period, alongside the services included. Routing changes, reverse DNS and support matter when the block is serving paying customers. A lower headline rate is less useful if your team has to spend more time coordinating separate providers.

Leasing keeps the acquisition cost out of your upfront budget. That leaves more capital for equipment, connectivity and customer growth. Our advantages and trade-offs of IPv4 leasing explains how to compare the longer-term cost and operating relationship.

Lease Directly from the Team Behind Your Supply

You can find IPv4 blocks through a marketplace or lease directly from a provider. The difference becomes practical when you need to launch, change routing or expand: who can act on the block, and who stays responsible for the service?

A brokered arrangement can involve a platform, a resource holder and separate support teams. LARUS supplies addresses from its own pool and brings the operating relationship directly to your team. You have one partner for capacity, routing and continued use, with the registry-facing work carried upstream.

For an ISP, data centre, hosting provider or cloud platform, that direct relationship means less time coordinating handoffs and more time serving customers. Choose the supply structure that supports your business after the first block arrives.

Keep Your Customers Connected as You Grow

Customers build around stable addresses. API allowlists, firewall rules, VPNs and service reputation become part of that network identity. Replacing a block can create work across your team and your customers. LARUS Continuity puts a dedicated operating partner behind the addresses your business depends on.

Buying a block does not remove its dependence on the registry. LARUS carries that registry-facing relationship as part of its first-party service. Lu Heng's Note 35 on registry risk and Continuity explains why the structure behind the supply matters.

That structure has a distinctive 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 address service.

Put Your IPv4 Block to Work

1. Plan the customer launch. Choose your address count, deployment location and lease period. Include the next growth stage so capacity keeps pace with demand.
2. Choose your Continuity plan. Compare the current offer for your block size and the support your network needs.
3. Connect the block to your network. Your origin ASN and routing plan help align the LOA, IRR and RPKI/ROA records so other networks can validate the announcement and reach your services.
4. Launch with confidence. Check reachability, reverse DNS and the applications your customers use. Plan renewal and expansion with the same LARUS team.

For the engineering detail, follow our step-by-step IPv4 deployment guide. Start with the block your next customers need and build on Unlimited IPv4 as your business grows.