With the global pool of IPv4 addresses long exhausted, buying, selling and leasing address space now runs through a busy secondary market. The catch is that brokers and marketplaces vary enormously in how they price blocks, protect your money and verify that the addresses you buy are actually clean. Choosing the right one is the difference between a smooth transfer and an expensive headache.
To help you decide, here are the best IPv4 brokers and marketplaces for 2026. We weighed the factors that matter most: registry facilitation, address quality, transparent pricing, secure payment and a genuinely managed transfer. The list starts with our top pick.
Key Takeaways
- The IPv4 secondary market involves brokers and marketplaces for buying, selling, and leasing IP addresses.
- Choosing the right IPv4 broker is crucial for a smooth transfer and involves assessing cleanliness, pricing, and management of the transfer.
- IPv4 Connect is highly recommended for its clean address blocks, transparent pricing, and managed transfers.
- Other notable brokers include IPv4.Global, IPXO, Prefix Broker, InterLIR, Addrex, and LARUS, each serving different needs in the market.
- Consider your specific requirements, such as ownership versus leasing, when selecting an IPv4 broker.
Table of contents
What Makes a Great IPv4 Broker
Before the list, it helps to know what separates a strong provider from a risky one. A capable broker is a registered facilitator with the relevant Regional Internet Registries, so it can shepherd transfers through ARIN, RIPE, APNIC or LACNIC policy rather than leaving you to decode it.
Beyond that, look for verified, clean address blocks, since ranges with blacklist or routing baggage can quietly wreck email deliverability and performance long after the sale closes. Insist on transparent pricing, secure payment through escrow or wire, real due diligence on sellers and a transfer the broker manages end to end. It also pays to weigh scale, because larger marketplaces tend to offer more sellers and steadier pricing than small ones that can suffer shortages. Finally, match the format to your need, whether that is a fixed-price purchase, an auction or a lease.
1. IPv4 Connect
IPv4 Connect takes the top spot by solving the two things buyers worry about most: address cleanliness and a safe, fully managed transfer. What sets it apart is the verification work done before a block is listed rather than after a sale closes.
Every subnet ships with a free blacklist report checked against more than 100 global blacklists, and the team cleans each block before listing it, removing old BGP announcements, stale route records and DNS entries so you inherit a genuinely clean range. Buying is built for confidence, with fixed, published prices on a buy-now basis instead of drawn-out auctions, the ability to reserve a subnet without payment and secure settlement by wire or escrow.
As an official facilitator in the ARIN, RIPE and APNIC regions, IPv4 Connect manages the entire transfer, typically in two to three weeks, including pre-approval assistance. Block sizes start at a /24, with larger contiguous ranges available, and you can request private inventory or set alerts by region and block size. A lease versus buy calculator and a subnet calculator are open to anyone. It pairs a white-glove managed service with published pricing and pre-purchase verification.
2. IPv4.Global (Hilco Streambank)
Operated by Hilco Streambank and based in New York, IPv4.Global is one of the most established brokers and auction platforms in the market. It specializes in the sale and transfer of large IPv4 blocks, including legacy holdings from enterprises and government entities.
Its standout strength is market transparency. The platform makes ongoing auction prices visible and publishes anonymized recent and historical pricing data, which is genuinely useful for buyers who need a sense of fair value. It runs auctions alongside private sales and leasing, plus escrow services, making it a strong fit when price discovery on a large block matters most.
3. IPXO
IPXO is an automated, leasing-first marketplace that manages millions of addresses across all five RIRs. You filter inventory by size, region and price, then handle LOA, ROA and WHOIS updates inside the platform, often within a day.
Its focus is leasing rather than permanent ownership, so it suits teams that need temporary space or want to monetize idle blocks. Holders pay a platform fee of around 5 percent deducted from monthly revenue, and lessees pay an additional fee starting near $9 per /24. For automated leasing at scale it is a leading option, though buyers seeking outright ownership will look elsewhere.
4. Prefix Broker
Prefix Broker is a European brokerage with deep roots in the RIPE NCC community that also covers ARIN, and it is a registered broker across ARIN, RIPE NCC and APNIC. Its calling card is a compliance-first approach paired with fixed brokerage fees, so costs are predictable.
It supports buying, selling and leasing, which makes it flexible, and its regional expertise makes it a natural fit for organizations operating mainly in the RIPE region. Buyers who value transparent, fixed fees and a compliance-led process will find it appealing.
5. InterLIR
InterLIR is a Berlin-based marketplace, run by InterLIR GmbH, that covers leasing, buying and selling across RIPE, ARIN, APNIC, LACNIC and AFRINIC. That five-region reach makes it one of the broader platforms for organizations operating in multiple markets.
The marketplace emphasizes a transparent overview of available blocks and their prices, automates much of the transfer process to keep it RIR-compliant and supports diverse transaction types including leasing and purchasing. For buyers who want flexibility and multi-region coverage in one place, it is worth a look.
6. Addrex
Addrex, Inc. is a global IPv4 marketplace based in Herndon, Virginia, that connects holders of unused blocks with network operators. Its distinguishing practice is seller vetting, since it pre-qualifies all sellers and validates their exclusive rights to a block before listing it.
The access model is unusual too. There is no cost to become a marketplace participant and no fee to view listings, effectively letting your company act as its own in-house broker once granted access to the platform. That suits buyers who prefer direct visibility into vetted listings.
7. LARUS
LARUS, operated by Larus Limited out of Hong Kong, runs a first-party leasing model, meaning it owns the address pool it leases rather than brokering third-party IPs. That ownership adds continuity for multi-year deployments where stability matters.
It also handles IPv4 trading for buyers and sellers, and its operational focus on the Asia-Pacific region makes it especially relevant for telecoms and operators with significant APAC routing requirements. For long-term leasing in that region, it is a strong specialist choice.
How to Choose the Right IPv4 Broker
With several capable providers, the decision comes down to your specific need. Start by confirming the broker is a registered facilitator in the regions where you are buying or selling, and ask exactly how it verifies that blocks are clean and free of liens.
Then match the format to your goal. A fixed-price marketplace suits buyers who want predictable pricing and outright ownership, an auction fits large blocks where price discovery matters, and a leasing platform works when you need flexibility rather than a permanent asset. Confirm that payment runs through escrow or secure wire, that pricing is transparent and that the broker manages the transfer through the registry rather than leaving the hardest part to you.
Frequently Asked Questions
Do I need to use an IPv4 broker?
No, a broker is not required, and parties who already know each other can transact directly through the registry. For most buyers and sellers, though, a broker saves real time and reduces risk by handling registry policy, seller due diligence and escrow.
Should I buy or lease IPv4?
Buying gives you a permanent asset and full control, while leasing offers flexibility and a lower upfront cost for temporary needs. Several providers on this list support both, so match the model to how long you need the space.
How long does an IPv4 transfer take?
It depends on the registry and the parties involved. ARIN states that once a transfer is approved, the agreement is signed and fees are paid, completion normally takes two business days, though documentation, due diligence and registry review mean the full process usually runs longer.
Why does a clean IP block matter?
Addresses that appear on blacklists can hurt email deliverability and online performance, so verifying and cleaning a block before transfer protects your network reputation from day one.
The Bottom Line
The IPv4 secondary market rewards buyers and sellers who choose their marketplace carefully. Each provider here fits a particular need, from IPv4.Global’s large-block auctions to IPXO’s automated leasing and LARUS’s Asia-Pacific focus.
But for most organizations buying or selling IPv4 in 2026, IPv4 Connect is the strongest place to start, combining clean, blacklist-checked blocks, fixed and transparent pricing, secure payment and fully managed transfers across ARIN, RIPE and APNIC. It removes the guesswork and the risk in equal measure, which is exactly what you want when moving significant money for address space.
