For Sellers

Seller Guide

List unused IPv4 addresses, set your terms, and review buyer demand in one place.

Typical Sellers

Institutions / ISPs / Network Operators / Companies

How it starts

Review inventory and set listing terms

Fee Structure

Marketplace fee: 11% (tax excluded)

Proceeds Simulator

Seller Proceeds Simulator

Estimate the expected proceeds if a listing closes at a given unit price. Choose the prefixes you want to sell, enter the unit price, and review the marketplace fee and expected net proceeds.

Choose the prefixes you want to sell

Applied Fee

Marketplace fee 11% (tax excluded)

This is the standard fee structure when proceeding via an IP-REINS listing.

Selected Prefixes

Select one or more prefixes

Summary

Total IP Count

0 IP

Gross Listed Amount

JPY 0

Marketplace Fee

JPY 0

Marketplace fee 11% (tax excluded)

Estimated Net Proceeds (excl. tax)

JPY 0

Effective Net Unit Price (excl. tax): JPY 0 / IP

This is an estimate assuming the deal closes at the displayed unit price. Individual conditions and ancillary costs may change the final amount.

Process

Start with a consultation first

You do not need every detailed document on day one. The usual approach is to start by reviewing the situation together and deciding how to proceed.

1. Initial Consultation

Review inventory, timing, and the block sizes you want to offer.

2. Confirm Required Information

Set the listing terms, pricing, and disclosure level.

3. Decide How to Proceed

Publish the listing and compare buyer interest.

4. Publish, Align, and Transfer

Align the terms, complete transfer, and close the deal.

Seller Types

Universities, research groups, and public networks

Institutional Holders

This path fits organizations that hold larger IPv4 blocks and want a simple way to prepare inventory, pricing, and listing size before going live.

  • Review available inventory
  • Set the minimum block size
  • Prepare the listing contact and internal approval

What to confirm before consultation

  • Available IPv4 inventory
  • Preferred timing
  • Minimum block size
  • Target price range
  • Listing contact

ISPs, carriers, hosting providers, and companies

Commercial Holders

This path fits organizations that want to move quickly and compare buyer demand with their available block sizes and pricing targets.

  • Review usable inventory
  • Choose the block sizes to offer
  • Set pricing and timing before listing

What to confirm before consultation

  • Available IPv4 inventory
  • Preferred timing
  • Minimum block size
  • Target price range
  • Listing contact

Fees

How the cost structure is viewed

This section summarizes the standard fee concept when progressing through an IP-REINS listing.

Process Type

When proceeding through IP-REINS listing

Seller Side
Seller: 11% (marketplace fee, tax excluded)
Buyer Side
Counterparty: 1%
Notes
This is the standard fee concept when the listing is published in IP-REINS and the sale progresses through listing preparation and condition alignment.

Additional Rules

  • The purchase amount is paid from buyer to seller.
  • Platform fees are handled separately from the sale amount.
  • The standard fee rate is fixed.
  • Broker compensation is separate from platform fees.