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.
Start with the per-address baseline
The transfer market sets the floor: /24s trade in the high-$20s per address, larger blocks in the mid-teens to low-$20s. The smaller the block, the higher the premium per address — buyers pay for flexibility, and /24s are the most liquid size.
Apply the three discounts
Cleanliness first: blocks with blacklist history or spam reputation sell at a 20-50% discount, and some buyers refuse them entirely. Region matters: addresses in RIPE (Europe) and ARIN (North America) hold a premium, while some LACNIC/APNIC allocations trade thinner. And size: a /16 sells for less per address than a /24, simply because the buyer pool is smaller.
The income view
A block is not only a price — it is a yield. Leasing dormants at roughly $0.40-1.50 per address per month gives a 15-25% annualized yield on a typical purchase price. That is why leasing desks outbid buyers for clean dormant inventory.
How IPDORM feeds the estimate
Valuation starts with facts: is the block actually dormant, how long has it been silent, who owns it, and does it have history? Those are exactly the fields our passive scans, ownership records and reputation data produce — so you price with data, not guesswork.