Simple selling process
Review pricing, terms, and transaction flow in one place.
IPv4 Address Marketplace
Buy and Sell IPv4 Addresses
A marketplace for buying and selling IPv4 addresses.
For Sellers
Why Sell IPv4 Addresses Here
List unused IPv4 addresses, review offers, and move forward with clear terms.
Private listing options
Keep organization details private while sharing only what buyers need to evaluate the listing.
Clear pricing view
Use market signals and recent examples as a pricing reference.
For Buyers
Why Buy IPv4 Addresses Here
Compare available listings and move faster when you find the right block.
Easy comparison
Compare size, pricing, and minimum block terms across listings.
Useful pricing reference
See market-based pricing signals before entering detailed negotiation.
Flexible block sizes
Review options from smaller blocks to larger acquisitions based on your needs.
About IP-REINS
About IP-REINS
IP-REINS is a marketplace for buying and selling IPv4 addresses.
It is designed to make listings easier to compare and transactions easier to manage.
Market Range
Spread Between Sell-side and Buy-side Pricing (DEMO Data)
This chart visualizes the spread and trend between indicative sell-side and buy-side price ranges shown in the market. The gap reflects underlying supply and demand balance.
売り希望価格帯
買い希望価格帯
基準価格（市場中央値）
売りと買いの価格差（スプレッド）は一定の幅で推移
A narrower spread generally indicates a higher likelihood of transaction alignment.
Why IP-REINS
Why IP-REINS
Clear rules
Listings, pricing, and process are shown in a clear and consistent format.
Better visibility
Buyers and sellers can review key information before moving forward.
Private by default
Public views can limit exposure of exact details until later stages.
Market context
Recent market examples help both sides think more clearly about price.
Flow
How It Works
1. Review Listings
Buyers review available listings, pricing, and minimum block size.
2. Compare Terms
Compare options and confirm the terms that matter most.
3. Confirm the Deal
Align on pricing, timing, and transfer conditions.
4. Complete Transfer
Complete payment and transfer, then close the transaction.
Choose Your Next Step
Open the page that matches what you want to do.