IPv4 marketplace and address services
Need more addresses or want to monetize unused space? Browse listings, compare options, and choose the deal structure that fits your timeline.
Live snapshot: IPv4 blocks on the market
A live look at inventory from our supplier network. Full self-serve browsing is on the way.
Trusted across the IPv4 ecosystem
Built for teams in hosting, telecom, cloud infrastructure, data services, and IP brokerage.
What we do
We run an IPv4 marketplace and step in as broker when a deal needs more coordination. You can browse offers, request a quote, list unused blocks, and get help with LOAs, due diligence, transfers, and activation without stitching the whole process together yourself.
Browse real supply
See listings from multiple suppliers instead of waiting on one broker to come back with whatever happens to be available.
We stay in the deal
When paperwork and transfers get involved, we help with LOAs, LIR coordination, due diligence, and the RIR process.
Use the platform your way
Start self-service if you already know what you need, or talk to us if the deal needs a more hands-on approach.
Choose the right path for the job
Some teams need a block for years. Some need a short bridge while capacity catches up. Some have unused space sitting idle. We cover all of those paths so you do not have to force a purchase when a lease, rental, or sale would make more sense.
Starting around €89/month for /24
Dedicated IPv4 for longer-term use, from /24 up to /16, with terms that can stretch from a month to multi-year agreements.
No hidden fees
One clear monthly price; no setup or surprise charges.
LOA and assignment handled
We sort out the paperwork so you can get the block into use without a long back-and-forth.
Pay with cards or bank transfer
Use the same platform and process whether you prefer to pay by card or bank transfer.
Lease IPv4
Lease dedicated IPv4 when you need stable space for months or years but do not want to buy outright. Flexible pricing starts from about €89/month for /24.
Blocks from real holders
We source from actual network owners, with common sizes from /24 up to /16.
Multiple regions and RIRs
RIPE, ARIN, LACNIC, APNIC, AFRINIC. If you need a specific region or transfer path, we can help source it.
Free consultation
Tell us the size, region, and constraints. We will help you decide whether buying is actually the right move.
Escrow and broker support
For larger or more complex deals, we coordinate escrow, LOAs, and the RIR transfer process.
Buy IPv4
Buy IPv4 when you want the block transferred to you and kept under your control. We help with sourcing, due diligence, escrow, and the RIR process.
List blocks /24 to /16
Put unused space to work instead of letting it sit idle.
List in any RIR
We can work with holders across major RIR regions.
Terms and pricing
We help set terms, pricing, and expectations before the block goes live.
Contracts and payouts
We handle the agreement flow so recurring payouts are tied to a clear contract.
Monetize IPv4
Lease out unused blocks if you want income without giving up ownership. We help with matching, paperwork, and activation.
List your block
If you no longer need the block, list it and put it in front of active buyers.
Define your offer
Set the asking range, RIR, block size, and transfer details.
Our team reviews
We review the details, flag gaps early, and prepare it for buyers.
Your offer goes live
Buyers can request details or move forward, and you keep the process in one place.
Sell IPv4
Sell unused IPv4 when you want a one-time payout instead of ongoing lease management. We help move the deal from listing to transfer.
Why use our marketplace
Fast matching and delivery. Get matched with listings or options quickly; we work with LIRs to keep transfers on track.
Abuse and reputation. We take abuse and block reputation seriously and guide you on clean blocks and due diligence.
Support when you need it. Our operations support transparent, secure IPv4 transactions.
Compliance and RIRs. We take process and safety seriously: RIR/LIR compliance, due diligence on counterparties, LOA (Letter of Authorization) handling, and awareness of clean blocks and abuse.
From telcos and hosting to VPN, cloud, and security — our marketplace serves businesses that need IPv4 for scale and compliance.
Which IPv4 services are available?
An IPv4 marketplace gives businesses one place to buy, lease, rent, sell, or monetize IPv4 address space. The right transaction model depends on whether the priority is long-term control, temporary capacity, predictable operating expenses, or income from unused blocks.
Available options can be compared by prefix size, RIR, term, transfer model, and intended use. The marketplace supports several transaction models rather than forcing every requirement into a purchase. Businesses can choose the option that matches their infrastructure plans:
- buy IPv4 addresses when the block needs to be transferred to the buyer for long-term control;
- lease IPv4 addresses when dedicated address space is required without an upfront acquisition;
- rent IPv4 for shorter projects, migrations, testing, or temporary capacity;
- monetize unused IPv4 when a holder wants recurring income without selling the asset;
- sell an IPv4 block when the address space is no longer needed and a one-time transaction is preferable.
The platform works with blocks from /24 up to /16. A /24 contains 256 addresses, while a /16 contains 65,536, so the required prefix should be selected according to actual capacity and routing needs.
How do buying, leasing and renting differ?
Buying transfers the address block to the buyer through the relevant RIR process. This model suits organizations that expect to retain the resource and want direct long-term control.
Leasing provides dedicated IPv4 space for an agreed period without requiring a purchase. Current lease options start at around €89 per month for a /24. Larger prefixes are quoted individually so that the effective per-address rate, term, region, and technical requirements can be assessed together. There are no setup charges, and LOA and assignment support are included.
Renting is intended for shorter or more temporary requirements. It can be appropriate for migration overlap, testing environments, temporary launches, or projects where permanent ownership would create unnecessary commitment.
What should be checked before buying or leasing an IPv4 block?
An address block should be evaluated on more than price. The practical value of a subnet depends on whether it can be transferred or routed for the intended workload.
Important checks include:
- RIR and transfer path;
- block size and available capacity;
- registration and ownership records;
- previous use and reputation;
- abuse or blocklist history;
- LOA and routing requirements;
- contract term and payment conditions;
- transfer or activation responsibilities.
Purchase transactions may also require due diligence, escrow, and coordination with the relevant Regional Internet Registry. Blocks can originate in the RIPE NCC, ARIN, APNIC, LACNIC, or AFRINIC service regions, but the supported inter-RIR path must be checked for the specific source and recipient. For ARIN, current compatible inter-RIR counterparts are APNIC, RIPE NCC, and LACNIC. For larger or more complex purchases, escrow can be used so that funds are held until the agreed transfer conditions are completed.
How can unused IPv4 address space generate income?
Organizations that hold unused blocks do not always need to sell them. Leasing unused prefixes can create recurring revenue while ownership remains with the holder.
Before listing a block, the holder should confirm that it is operationally available and not still referenced by production systems, customer allowlists, DNS records, firewall rules, monitoring, or other internal dependencies. Lease terms should then define pricing, permitted use, contract duration, payout arrangements, and the responsibilities of both parties.
What support can be useful during an IPv4 transaction?
Simple transactions may require little assistance, while larger transfers can involve several commercial and technical steps. Broker support can cover block matching, due diligence, LOA preparation, escrow coordination, LIR communication, and the RIR transfer process.
A marketplace with broker support lets a buyer start by comparing available supply and request additional coordination when the transaction requires it. This is useful when a specific block size, region, transfer path, or technical condition must be matched.
Choose the appropriate IPv4 transaction model
IPv4 requirements differ by network size, time horizon, budget, RIR, and intended use. IPv4 Online combines an IPv4 marketplace with broker support for businesses that need to buy, lease, rent, sell, or monetize address space. Submit the required prefix size, region or RIR, and preferred transaction model to receive matching options and determine the next step.