From the blog
Dark space intelligence, market notes and practical guides.
Is IPv4 a Good Investment in 2026? An Honest Look at the Market
All 4.3 billion IPv4 addresses are allocated, and a /24 block can earn around $1,200 a year in lease income. But prices corrected after the 2021 peak — here is the two-sided case.
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How AI Infrastructure Is Changing IPv4 Demand
Training fleets, inference endpoints and multi-region deployments all need public IPv4 — and most third-party services still don't speak IPv6. Here is how the AI buildout is reshaping the IPv4 market.
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How to Audit Your Unused IP Address Blocks
A step-by-step internal audit for IP holders: pull your RIR records, compare them with BGP announcements, measure real usage, separate NAT-hidden capacity, and turn the result into consolidation, leasing or a sale.
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How to Read an IPv4 Availability Map
All ~4.3 billion IPv4 addresses are allocated, so availability no longer means free space — it means space that is registered but silent. Here is how a three-layer map finds it.
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How to Choose an IPv4 Broker in 2026
A broker is not just a middleman: escrow, reputation screening and RIR know-how are what you are actually paying for. Here is how to separate the serious brokers from the listings with a phone number.
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Dormant IPv4 Addresses: The Market's Invisible Supply
All 4.3 billion IPv4 addresses are allocated — but allocation is not usage. Dormant blocks are the market's invisible supply: an inventory opportunity, an abuse magnet and idle capital all at once.
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How to Buy IPv4 Addresses in 2026 Without Overpaying
A /24 trades around $27 per IP, a /19 around $14. Understanding why — and how due diligence works — is the difference between a good block and an expensive mistake.
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IPv4 Transfer Cost: Everything You Pay Beyond the Price Per IP
The per-IP price is the headline. Broker commission, registry fees, escrow, legal review and post-transfer cleanup are the rest of the invoice.
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IPv4 Lease Price in 2026: What You Actually Pay Per Address
Leasing runs around $0.40 per IP per month while cloud providers charge roughly $44 per IP per year. Here is how the gap forms — and how to read a quote.
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How to Lease IPv4 Addresses: A Step-by-Step Guide for Network Teams
From sizing the block to publishing the ROA — the seven steps that turn a lease agreement into announced, deliverable address space.
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What Is IPv4 Exhaustion — and Why It Still Shapes the Market
The IPv4 pool officially ran dry years ago. Exhaustion is why addresses are scarce, valuable and tightly controlled — and why the transfer market exists.
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How to Sell IPv4 Addresses: A Step-by-Step Guide
Selling address space is not like selling a server. RIR policy, escrow and due diligence all matter. Here is the path from dormant block to completed transfer.
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IPv4 vs IPv6: Why IPv4 Still Matters in the IPv6 Era
IPv6 was supposed to end IPv4 scarcity. Twenty-five years later, IPv4 prices are at decade highs. Here is why the old protocol refuses to retire.
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How to Estimate the Value of an IPv4 Block
Market price per address is only the starting point. Size, cleanliness and region move real transactions. Here is a practical framework for valuing any block.
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What Is IPv4 Dark Space — and Why It Matters
Every IPv4 address is allocated. Most of them are quiet. Dark space is the dormant part of the internet — and it is a market signal.
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How We Map Dormant Blocks: Passive Scanning, Explained
No exploits, no authentication, no intrusive traffic. Passive TCP probing is the polite way to ask 4.3 billion addresses whether they are home.
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The IPv4 Transfer Market in 2026: Prices, Volume, Trends
Free pools are gone, prices have recovered from the 2024 dip, and millions of addresses change hands every year. Here is where the market stands.
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IPv4 Leasing: Turning Dormant Addresses Into Monthly Revenue
If you hold IPv4 you do not use, you are sitting on inventory — not a cost. Leasing converts it into a predictable monthly income stream.
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5 Quick Checks: Is Your IP Space Actually Being Used?
Most organisations hold address space they cannot account for. These five checks reveal dormant inventory — and the risk hiding in it.
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